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<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:yandex="http://news.yandex.ru"
xmlns:media="http://search.yahoo.com/mrss/"
xmlns:turbo="http://turbo.yandex.ru"
version="2.0">
<channel>
<title>Sergey Leschev</title>
<link>https://sergeyleschev.github.io</link>
<description>Sergey Leschev, Team Lead (Swift, TypeScript, Database). Sergey is a professional who is responsible for the design and construction of websites and apps.</description>
<language>en</language>
<item turbo="true">
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<link>https://sergeyleschev.github.io</link>
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<pubDate>Tue, 21 Apr 2015 14:15:00 +0300</pubDate>
<author>Sergey Leschev</author>
<metrics>
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<breadcrumblist>
<breadcrumb url="https://sergeyleschev.github.io" text="Team Lead"/>
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<article id="personal-details" class="markdown-body"><h1> <a href="https://sergeyleschev.github.io"><img itemprop="image" alt="Sergey Leschev" src="apple-touch-icon.png" width=27/></a> Sergey Leschev</h1>
<img itemprop="image" alt="Sergey Leschev" src="https://avatars.githubusercontent.com/u/23653372?v=4&raw=true" width=300/>
<h3>Team Lead</h3>
<h2><a href="https://sergeyleschev.github.io/sergeyleschev-ios-roadmap.html">Swift</a> | <a href="https://sergeyleschev.github.io/sergeyleschev-fullstack-roadmap.html">TypeScript</a> | <a href="https://sergeyleschev.github.io/sergeyleschev-system-architect-roadmap.html">System Architect</a></h2>
<br>
<h2>🏆 Awards</h2>
<h3>Ranking #Dev: Global TOP 200 (<a href="https://leetcode.com/sergeyleschev/">Certificate</a>)</h3>
<p><a href="https://leetcode.com/sergeyleschev/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/leetcode-ranking.png?raw=true" width="410"></a></p>
<p><a href="https://leetcode.com/sergeyleschev/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/leetcode-medals.png?raw=true" width="280"></a></p>
<p><strong>Languages</strong>: Swift, TypeScript, Shell, Database (T-SQL, PL/SQL, MySQL).</p>
<p><strong>Algorithms</strong>: linked lists, binary search, hash table, queue/stack, dfs/bfs, sort, heap/hash, two pointers, sliding window, tree, greedy problems etc.</p>
<h2>🚀 Developer Roadmap</h2>
<ul>
<li>S.Leschev iOS Developer <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-ios-roadmap.md">Roadmap</a>.</li>
<li>S.Leschev FullStack Developer <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-roadmap.md">Roadmap</a>.</li>
<li>S.Leschev System Architect <a href="https://github.com/sergeyleschev/system-design/blob/main/sergeyleschev-system-architect-roadmap.md">Roadmap</a>.</li>
</ul>
<br>
<div style="page-break-after: always;"></div>
<h2>💻 Technologies</h2>
<h3>Tech Stack</h3>
<p>Swift [<a href="https://github.com/sergeyleschev/codility-swift">4</a>, <a href="https://github.com/sergeyleschev/leetcode-swift">5+</a>, <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-ios-roadmap.md">UIKit</a>, Autolayout, <a href="https://github.com/sergeyleschev/UIKitPlus">UIKitPlus</a>, GCD/Operations/<a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-swift-concurrency.md">Concurrency</a> 5.5+, <a href="https://github.com/sergeyleschev/Alamofire">Alamofire</a>, <a href="https://github.com/sergeyleschev/ObjectMapper">ObjectMapper</a>, SwiftLint, SwiftGen, FP, pre/after-main opt], SwiftUI [iOS, watchOS, Widgets, App Clips], Apple TV/AirPlay [Composition, Secondary Display], <a href="https://github.com/sergeyleschev/realm-cocoa">Realm</a>, <a href="https://github.com/sergeyleschev/lottie-ios">Lottie</a>, <a href="https://github.com/sergeyleschev/JWTDecode.swift">JWT</a>, <a href="https://github.com/sergeyleschev/CryptoSwift">CryptoSwift</a>, REST, Firebase, Java [7-8], PWA, Angular [2-6+], <a href="https://github.com/sergeyleschev/ionic-framework">Ionic Framework</a> [3-5+], <a href="https://github.com/sergeyleschev/react-native">React Native</a> [<a href="https://github.com/sergeyleschev/redux">Redux</a>, <a href="https://github.com/sergeyleschev/mobx">MobX</a>], JavaScript, React [<a href="https://github.com/sergeyleschev/next.js">Next.JS</a>; <a href="https://github.com/sergeyleschev/redux">Redux</a>, <a href="https://github.com/sergeyleschev/redux-toolkit">Redux Tookit</a> +Slice/Immer, <a href="https://github.com/sergeyleschev/primereact">Prime React</a>], Node.js [10x Express/SQL;14x NestJS 6;7+/TypeORM], <a href="https://github.com/sergeyleschev/leetcode-typescript">TypeScript</a> (+ESLint, Jest), C#, .Net Core [1-3+], MS SQL [2016+], SQL, Objective-C, MongoDB [3.6, 4.4, Config, Replication, Sharding], RabbitMQ, GraphQL [Schemas; Resolver; Request; Validation; Queries&Mutations; Apollo; Reactive], Apache Kafka, Mockapi, Mac Os, iOS [10;12;13;14+], Android, <a href="https://github.com/sergeyleschev/OneSignal-iOS-SDK">OneSignal</a>, Localization (Phrase/<a href="https://github.com/sergeyleschev/SwiftyJSON">json</a>/<a href="https://github.com/sergeyleschev/react-i18next">i18next</a>), Zeplin, Figma, Sketch.</p>
<h3>Analytics</h3>
<p>Tableau, Amplitude [<a href="https://github.com/sergeyleschev/Amplitude-iOS">SDK</a>], AppsFlyer [<a href="https://github.com/sergeyleschev/AppsFlyerFramework">SDK</a> 5, 6+, Raw Data, Data Locker, Protect360, web-2-app, People-Based Attribution (PBA), Conversion Path, OneLink], Facebook for Business [<a href="https://github.com/sergeyleschev/facebook-ios-sdk">SDK</a>, Graph, <a href="https://github.com/sergeyleschev/facebook-nodejs-business-sdk">Conversions Api</a>, Pixel, Reports], Snapchat, TikTok, Google Tag Manager (GTM), Google Analytics [GA4;UA], Apple SKAd (+PCM), Qlik, Yandex, Hotjar, SplitMetrics, Apphud, Appfollow, A/B testing, Airflow, Airbyte, Qonversion.</p>
<h3>Infra/DevOps</h3>
<p>CI/CD tools [XCode Cloud, Github Actions/DO, <a href="https://github.com/sergeyleschev/jenkins">Jenkins</a>, Codemagic, Gitlab, AWS CodeBuild], Git [+Flow], Chromium + Transporter, Instana, Freshworks, Docker [+compose], Twilio, Zapier, Linux [+ssh, iptables, Ubuntu 16/18/20+, snap/apt/npm/yarn/brew], Amazon Web Services (AWS), Digital Ocean (DO), GRE, IPSEC, VPN, Cloudflare [DNS, CDN, SSL, Guard, Rules], Crashlytics, Grafana, Sentry, RayGun, Nginx, Let’s Encrypt [SSL], Win Server [+PowerShell], IIS, Pingdom, UptimeRobot, Apache JMeter, PAW, Postman, Charles Proxy, Indigo Browser, Published Apps [Apple AppStore, Google Play, Amazon Appstore, Huawei AppGallery, Galaxy Store, Snapcraft].</p>
<h3>Payment Providers</h3>
<p>Apple StoreKit [+Retention, Sales Reports], Stripe [nest-<a href="https://github.com/sergeyleschev/nestjs-stripe">SDK</a>, node-<a href="https://github.com/sergeyleschev/stripe-node">SDK</a>, Sigma SQL Financial Reports], PayPal [<a href="https://github.com/sergeyleschev/PayPal-node-SDK">SDK</a>], high-risk processing providers [Solid Payments, Recurly, SolidGate, Braintree], CloudPayments, DCB (fortumo), Paymentwall, SafeChange.</p>
<h3>DeFi</h3>
<p>Solidity (Consensys, Alchemy), Metamask, SafePal, Launchpad, PancakeSwap (BNB), Uniswap (ETH), Dextools/PooCoin, Gas/gwei Optimization, Front-Runner Bots, Slippage Optimization, CEX/DEX, Binance Smart Chain (BNB), Ethereum (ETH), Polygon (Matic), Tokens List [Coinmarketcap;CoinGecko].</p>
<h3>Auth Providers</h3>
<p>Apple ID, Google, Facebook (Meta), Fitbit.</p>
<h3>Support Services</h3>
<p>Intercom, Hiver, ChargeBee, HelpShift, HelpCrunch, Freshchat.</p>
<br>
<h3>Reports</h3>
<p>P&L, CF, Key metrics, Unit-economics [AARRR, RARRA], Cohort analysis.</p>
<h3>PM Stack</h3>
<p>Agile [Scrum, Kanban, +V&E +MoSCoW +ICE +RICE, PRINCE2], Driven Development [TDD, BDD/QUICK, DDD, FDD], ISTBQ, Clickup, Jira, Confluence, Notion, Asana, Team Foundation (TFS), Miro, diagrams.net/ERD, Microsoft Project, OmniPlan, UML [IBM Rational Rose, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Visio/report/">Visio</a>].</p>
<br>
<div style="page-break-after: always;"></div>
<h2>Project Guidelines</h2>
<p>A set of best practices in my projects.</p>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#git">Git</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#documentation">Documentation</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#environments">Environments</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#dependencies">Dependencies</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#testing">Tesing</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#structure-and-naming">Structure and Naming</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#code-style">Code Style</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#logging">Logging</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#api">API</a></li>
</ul>
<br>
<h2>🏫 Education</h2>
<h3>Belarusian State University</h3>
<p>2004 – 2009</p>
<h3>Faculty of Applied Mathematics & Informatics.</h3>
<p>Computer science / Mathematician-system programmer.</p>
<br>
<div style="page-break-after: always;"></div>
<h2>🏆 Awards</h2>
<h3>Golden Award for the Year of the Tiger Challenge</h3>
<img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/codility-ranking.png?raw=true" width="410">
<p><strong>Algorithmic skills</strong>: Dynamic programming, Greedy algorithms, Catepillar method, Binary search algorithm, Fibonacci numbers, Euclidean algorithm, Sieve of Eratosthenes, Prime and composite numbers, Maximum slice problem, Stack and Queues, Sorting, Time Complexity, Arrays, Prefix Sums, Leader, etc.</p>
<p><strong>Contest</strong>: Algorithms, SQL, Data Structures, Bitwise operations (bit-ops), Frontend.</p>
<br>
<div style="page-break-after: always;"></div>
<h2>Licenses & certifications</h2>
<ul>
<li>🏆 LeetCode Global TOP 200 (Swift: <a href="https://leetcode.com/sergeyleschev/">Certificate</a>, Sources: <a href="https://github.com/sergeyleschev/leetcode-swift">Swift</a>, Sources: <a href="https://github.com/sergeyleschev/leetcode-typescript">TypeScript</a>).</li>
<li>🏆 Golden Award for the Year of the Tiger Challenge (Swift: <a href="https://app.codility.com/cert/view/certQBA3EW-QESXM38DNR3SXMYZ/">Certificate</a>, Sources: <a href="https://github.com/sergeyleschev/codility-swift">Swift</a>).</li>
<li>🏆 Golden Award Muad’Dib’s Challenge (Swift: <a href="https://app.codility.com/cert/view/cert5YT6JA-Y9ZKFEFXEZWGTR3G/">Certificate</a>, Sources: <a href="https://github.com/sergeyleschev/codility-swift">Swift</a>).</li>
<li> Health & Fitness iOS App / <a href="https://github.com/sergeyleschev/motivation">Fitness Motivation</a> / AppStore (Website: <a href="https://sergeyleschev.github.io/motivations.coach/">motivations.coach</a>, Sources: <a href="https://github.com/sergeyleschev/motivation">SwiftUI</a>) @ S. Leschev.</li>
<li> Utility MacOS App / Calc-It / Core / AppStore (Sources: <a href="https://github.com/sergeyleschev/calc-it">Swift</a>) @ S. Leschev.</li>
<li>Facebook Blueprint, Snap Inc, Bytedance, AppsFlyer (Marketing SDK), Google Analytics (<a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Google%20Analytics/report/">SDK</a>, GA4, UA).</li>
<li>Internet Initiatives Development Fund (IIDF / Economics).</li>
<li>Stanford University (Swift: <a href="https://github.com/sergeyleschev/stanford-cs193p">UIKit</a>, <a href="https://github.com/sergeyleschev/stanford-cs193p-swiftui">SwiftUI</a>).</li>
<li>Coursera (Swift): Best Practices For iOS User Interface Design, Networking And Security in iOS Applications.</li>
<li>Zdes i Sejchas Consulting Group (Professional Management Skills, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Agile%20Methodologies/report/">Agile Methodologies</a>).</li>
<li>LinkedIn Skill Asessment (Mobile): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Swift/report/">Swift (Programming Language)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Object-Oriented%20Programming%20(OOP)/report/">Object-Oriented Programming (OOP)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Objective-C/report/">Objective-C</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/C++/report/">C++</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Angular/report/">Ionic</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/JSON/report/">JSON</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/XML/report/">XML</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Android/report/">Android</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Kotlin/report/">Kotlin</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Maven/report/">Maven</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Java/report/">Java</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/REST%20APIs/report/">REST APIs</a>.</li>
<li>LinkedIn Skill Asessment (Front-End): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Front-end%20Development/report/">Front-end Development</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Angular/report/">Angular</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/React/report/">React</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/JavaScript/report/">Javascript</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/HTML/report/">HTML</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Cascading%20Style%20Sheets%20(CSS)/report/">CSS</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/jQuery/report/">jQuery</a>.</li>
<li>LinkedIn Skill Asessment (Back-End): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Node.js/report/">Node.js</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Java/report/">Java</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Spring%20Framework/report/">Spring Framework</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Scala/report/">Scala</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/C%23/report/">C#</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/.NET%20Framework/report/">.NET Framework</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Unity/report/">Unity</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Python%20(Programming%20Language)/report/">Python (Programming Language)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Django/report/">Django</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/PHP/report/">PHP</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/C%20(Programming%20Language)/report/">C (Programming Language)</a>.</li>
<li>LinkedIn Skill Asessment (Databases): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/MongoDB/report/">MongoDB</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/NoSQL/report/">NoSQL</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Transact-SQL%20(T-SQL)/report/">Transact-SQL (T-SQL)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/MySQL/report/">MySQL</a>.</li>
<li>LinkedIn Skill Asessment (Infra/DevOps): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Bash/report/">Bash</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Git/report/">Git</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Amazon%20Web%20Services%20(AWS)/report/">Amazon Web Services (AWS)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/AWS%20Lambda/report/">AWS Lambda</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Google%20Cloud%20Platform%20(GCP)/report/">Google Cloud Platform (GCP)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Microsoft%20Azure/report/">Microsoft Azure</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Hadoop/report/">Hadoop</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/IT%20Operations/report/">IT Operations</a>.</li>
<li>LinkedIn Skill Asessment (AI): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Machine%20Learning/report/">Machine Learning</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/MATLAB/report/">MATLAB</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Python%20(Programming%20Language)/report/">Python AI</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/R%20(Programming%20Language)/report/">R (Programming Language)</a>.</li>
</ul>
<br>
<div style="page-break-after: always;"></div>
<h2>🏆 Awards</h2>
<h3>Golden Award Muad’Dib’s Challenge</h3>
<p><a href="https://app.codility.com/cert/view/cert5YT6JA-Y9ZKFEFXEZWGTR3G/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/codility-ranking-muaddibs.png?raw=true" width="410"></a></p>
<p><strong>Algorithmic skills</strong>: Dynamic programming, Greedy algorithms, Binary search, Stack and Queues, Sorting, Time Complexity.</p>
<p><strong>Contest</strong>: Algorithms, Data Structures.</p>
<p><strong>Languages</strong>: Swift.</p>
<br>
<div style="page-break-after: always;"></div>
<h2>Contacts</h2>
<p>I have a clear focus on time-to-market and don’t prioritize technical debt.</p>
<p>🛩️ #startups #management #cto #swift #typescript #database</p>
<p>📧 Email: <a href="mailto:sergey.leschev@gmail.com">sergey.leschev@gmail.com</a></p>
<p>👋 LinkedIn: <a href="https://www.linkedin.com/in/sergeyleschev/">https://linkedin.com/in/sergeyleschev</a></p>
<p>👋 Twitter: <a href="https://twitter.com/sergeyleschev">https://twitter.com/sergeyleschev</a></p>
<p>👋 Github: <a href="https://github.com/sergeyleschev">https://github.com/sergeyleschev</a></p>
<p>🌎 Website: <a href="https://sergeyleschev.github.io">https://sergeyleschev.github.io</a></p>
<p>🖨️ PDF: <a href="https://github.com/sergeyleschev/sergeyleschev/raw/main/sergeyleschev-readme.pdf">Download</a></p>
<p>ALT: SIARHEI LIASHCHOU</p>
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<article id="personal-details" class="markdown-body"><h1> <a href="https://sergeyleschev.github.io"><img itemprop="image" alt="Sergey Leschev" src="apple-touch-icon.png" width=27/></a> Sergey Leschev</h1>
<img itemprop="image" alt="Sergey Leschev" src="https://avatars.githubusercontent.com/u/23653372?v=4&raw=true" width=300/>
<h3>iOS Developer Roadmap</h3>
<h2>🏆 Awards</h2>
<h3>Ranking #Dev: Global TOP 200 (<a href="https://leetcode.com/sergeyleschev/">Certificate</a>)</h3>
<p><a href="https://leetcode.com/sergeyleschev/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/leetcode-ranking.png?raw=true" width="410"></a></p>
<p><a href="https://leetcode.com/sergeyleschev/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/leetcode-medals.png?raw=true" width="280"></a></p>
<p><strong>Languages</strong>: Swift, Shell, Database (T-SQL, PL/SQL, MySQL), Concurrency (Python3).</p>
<p><strong>Algorithms</strong>: linked lists, binary search, hash table, queue/stack, dfs/bfs, sort, heap/hash, two pointers, sliding window, tree, greedy problems etc.</p>
<hr>
<div style="page-break-after: always;"></div>
<h3>Golden Award Muad’Dib’s Challenge</h3>
<p><a href="https://app.codility.com/cert/view/cert5YT6JA-Y9ZKFEFXEZWGTR3G/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/codility-ranking-muaddibs.png?raw=true" width="410"></a></p>
<p><strong>Languages</strong>: Swift.</p>
<p><strong>Algorithmic skills</strong>: Dynamic programming, Greedy algorithms, Binary search, Stack and Queues, Sorting, Time Complexity.</p>
<p><strong>Contest</strong>: Algorithms, Data Structures.</p>
<hr>
<div style="page-break-after: always;"></div>
<p>Tapping on a link will take you to relevant certificates.</p>
<h2>iOS</h2>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/RESOURCES.md"><code>Languages</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/RESOURCES.md"><code>Swift</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Closures/RESOURCES.md">Closures</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Initializers/RESOURCES.md"><code>Initializers</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Generics/RESOURCES.md">Generics</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Protocols/RESOURCES.md"><code>Protocols</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Structs/RESOURCES.md"><code>Structs</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Enums/RESOURCES.md"><code>Enums</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Runtime/RESOURCES.md">Runtime</a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Languages/Swift/Runtime/Method_dispatch/RESOURCES.md">Method dispatch</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/RESOURCES.md"><code>Memory management</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Stack_and_Heap/RESOURCES.md"><code>Stack and Heap</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Value_vs_Reference_type/RESOURCES.md"><code>Value vs Reference type</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/MRC/RESOURCES.md">MRC</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/ARC/RESOURCES.md"><code>ARC</code></a></li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/ARC/Weak_references/RESOURCES.md">Weak references</a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Retain_cycles/RESOURCES.md"><code>Retain cycles</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Garbage_collection/RESOURCES.md">Garbage collection</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Memory_leaks/RESOURCES.md"><code>Memory leaks</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Shallow_and_deep_copying/RESOURCES.md">Shallow and deep copying</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Memory_management/Autorelease_pool/RESOURCES.md">Autorelease pool</a></li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/RESOURCES.md"><code>Multithreading and concurrency</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/POSIX_and_NSThreads/RESOURCES.md">POSIX and NSThreads</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Perform_selector_family/RESOURCES.md">Perform selector family</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/GCD/RESOURCES.md"><code>GCD</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/NSOperation(Queue)/RESOURCES.md"><code>NSOperation(Queue)</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Runloop/RESOURCES.md"><code>Runloop</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Synchronization/RESOURCES.md"><code>Synchronization</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Problems/RESOURCES.md">Problems</a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Problems/Race_condition/RESOURCES.md">Race condition</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Problems/Deadlock/RESOURCES.md">Deadlock</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Multithreading_and_concurrency/Problems/Readers%E2%80%93writers_problem/RESOURCES.md">Readers–writers problem</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] <code>Cocoa Touch</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/RESOURCES.md"><code>UIKit</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIApplication/RESOURCES.md"><code>UIApplication</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIApplication/States/RESOURCES.md"><code>States</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIApplication/UIApplicationDelegate/RESOURCES.md">UIApplicationDelegate</a></li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIViews/RESOURCES.md"><code>UIViews</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIViews/UITableViews/RESOURCES.md"><code>UITableViews</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIViews/UICollectionViews/RESOURCES.md"><code>UICollectionViews</code></a></li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Layers/RESOURCES.md">Layers</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Layout/RESOURCES.md"><code>Layout</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Layout/Frame-based/RESOURCES.md"><code>Frame-based</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Layout/Autolayout/RESOURCES.md"><code>Autolayout</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Layout/Autolayout/UIStackView/RESOURCES.md">UIStackView</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Animations/RESOURCES.md">Animations</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Transform/RESOURCES.md">Transform</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/Navigation/RESOURCES.md"><code>Navigation</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIViewController/RESOURCES.md"><code>UIViewController</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UIKit/UIViewController/Lifecycle/RESOURCES.md"><code>Lifecycle</code></a></li>
</ul>
</li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/RESOURCES.md"><code>Foundation</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Notifications_vs_Delegation_vs_Observing/RESOURCES.md"><code>Notifications vs Delegation vs Observing</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Collections/RESOURCES.md">Collections</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Networking/RESOURCES.md"><code>Networking</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Serialization/RESOURCES.md"><code>Serialization</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Serialization/NSCoding/RESOURCES.md">NSCoding</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Serialization/Codable/RESOURCES.md"><code>Codable</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Serialization/JSON/RESOURCES.md"><code>JSON</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Serialization/XML/RESOURCES.md">XML</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Foundation/Serialization/Protobuf/RESOURCES.md">Protobuf</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/UserNotifications/RESOURCES.md">UserNotifications</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Core_Location/RESOURCES.md">Core Location</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Core_Motion/RESOURCES.md">Core Motion</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Cocoa_Touch/Work_in_background_mode/RESOURCES.md"><code>Work in background mode</code></a></li>
</ul>
</li>
<li>[X] <code>Software Architecture</code>
<ul>
<li>[X] <code>Design Patterns</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Cocoa/RESOURCES.md"><code>Cocoa</code></a>
<ul>
<li>[X] Abstract Factory
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Cocoa/Abstract_Factory/Class_cluster/RESOURCES.md">Class cluster</a></li>
</ul>
</li>
<li>[X] Adapter</li>
<li>[X] Command Pattern</li>
<li>[X] Chain of Responsibility</li>
<li>[X] Decorator
<ul>
<li>[X] Delegation</li>
<li>[X] Categories</li>
</ul>
</li>
<li>[X] Facade</li>
<li>[X] Memento</li>
<li>[X] Observer</li>
<li>[X] Proxy</li>
<li>[X] Receptionist</li>
<li>[X] Singleton</li>
<li>[X] Template Method</li>
<li>[X] MVC</li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/RESOURCES.md"><code>Architectural</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/MVC/RESOURCES.md"><code>MVC</code></a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/MVVM/RESOURCES.md"><code>MVVM</code></a>/<a href="https://github.com/sergeyleschev/UIKitPlus"><code>UIKitPlus</code></a></li>
<li>[X] <code>MVP</code></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/Clean_architecture/RESOURCES.md"><code>Clean architecture</code></a>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/Clean_architecture/VIPER/RESOURCES.md">VIPER</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/Clean_architecture/RIBs/RESOURCES.md">RIBs</a></li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Architectural/Coordinators/RESOURCES.md">Coordinators</a></li>
</ul>
</li>
<li>[X] <code>Creational</code>
<ul>
<li>[X] Factory</li>
<li>[X] Abstract Factory</li>
<li>[X] Builder</li>
<li>[X] Factory Method</li>
<li>[X] Object Pool</li>
<li>[X] Prototype</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Patterns/Creational/Singleton/RESOURCES.md">Singleton</a></li>
</ul>
</li>
<li>[X] <code>Structural</code>
<ul>
<li>[X] Adapter</li>
<li>[X] Bridge</li>
<li>[X] Composite</li>
<li>[X] Decorator</li>
<li>[X] Facade</li>
<li>[X] Flyweight</li>
<li>[X] Proxy</li>
</ul>
</li>
<li>[X] <code>Behavioural</code>
<ul>
<li>[X] Command</li>
<li>[X] Chain of responsibility</li>
<li>[X] Interpreter</li>
<li>[X] Iterator</li>
<li>[X] Mediator</li>
<li>[X] Memento</li>
<li>[X] Observer</li>
<li>[X] State</li>
<li>[X] Strategy</li>
<li>[X] Visitor</li>
</ul>
</li>
<li>[X] Concurrency
<ul>
<li>[X] Anti-pattern</li>
</ul>
</li>
</ul>
</li>
<li>[X] <code>Design Principles</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Principles/SOLID/RESOURCES.md"><code>SOLID</code></a></li>
<li>[X] <code>Inversion of Control</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Principles/Inversion_of_Control/Dependency_Injection/RESOURCES.md"><code>Dependency Injection</code></a></li>
<li>[X] Service Locator</li>
</ul>
</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Software_Architecture/Design_Principles/Protocol-Oriented_Programming/RESOURCES.md">Protocol-Oriented Programming</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] <code>Dependencies management</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Dependencies_management/Cocoapods/RESOURCES.md">Cocoapods</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Dependencies_management/Carthage/RESOURCES.md">Carthage</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Dependencies_management/Swift_Package_Manager/RESOURCES.md">Swift Package Manager</a></li>
</ul>
</li>
<li>[X] Project structure and File/Group organisation</li>
<li>[X] <code>Version Control Systems</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Version_Control_Systems/Git/RESOURCES.md"><code>Git</code></a></li>
</ul>
</li>
<li>[X] Debugging
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Debugging/Instruments/RESOURCES.md">Instruments</a></li>
<li>[X] Best practices
<ul>
<li>[X] Checklists</li>
</ul>
</li>
</ul>
</li>
<li>[X] UX</li>
<li>[X] <code>Caching and Persistency</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Caching_and_Persistency/Core_Data/RESOURCES.md">Core Data</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Caching_and_Persistency/Realm/RESOURCES.md">Realm</a></li>
</ul>
</li>
<li>[X] <code>Testing</code>
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Testing/Unit_Tests/RESOURCES.md"><code>Unit Tests</code></a></li>
<li>[X] Snapshot Tests</li>
<li>[X] Functional test</li>
<li>[X] UI Tests</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Testing/TDD/RESOURCES.md">TDD</a></li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Testing/BDD/RESOURCES.md">BDD</a></li>
</ul>
</li>
<li>[X] Performance optimization
<ul>
<li>[X] Increase FPS</li>
<li>[X] Decrease memory footprint</li>
</ul>
</li>
<li>[X] Code signing</li>
<li>[X] Tools
<ul>
<li>[X] IDE
<ul>
<li>[X] Xcode
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Tools/IDE/Xcode/Interface_Builder/RESOURCES.md">Interface Builder</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] Swiftlint</li>
<li>[X] Sourcery</li>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Tools/Fastlane/RESOURCES.md">Fastlane</a></li>
<li>[X] Charles</li>
</ul>
</li>
<li>[X] Continuous Integration
<ul>
<li>[X] Github Actions / Jenkins</li>
<li>[X] Xcode server</li>
</ul>
</li>
<li>[X] Security
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/Security/Keychain/RESOURCES.md">Keychain</a></li>
</ul>
</li>
<li>[X] tvOS
<ul>
<li>[X] <a href="Resources/iOS_Developer/Practical_knowledge/tvOS/Focus_interactions/RESOURCES.md">Focus interactions</a></li>
</ul>
</li>
<li>[X] WatchKit</li>
<li>[X] Programming Paradigms
<ul>
<li>[X] Object-Oriented</li>
<li>[X] Functional
<ul>
<li>[X] Functional Reactive Programming Frameworks
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/react-native">React Native</a></li>
<li>[X] <a href="Resources/iOS_Developer/Computer_Science_knowledge/Programming_Paradigms/Functional/Functional_Reactive_Programming_Frameworks/RxSwift/RESOURCES.md">RxSwift</a></li>
<li>[X] RxRealm, RxDataSources</li>
<li>[X] Combine</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
<div style="page-break-after: always;"></div>
<h2>Computer Science</h2>
<ul>
<li>[X] <code>Computer Science knowledge</code>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Algorithms</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Sorting</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Graph Theory</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Trees</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
</ul>
</li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Strings</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Greedy</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Dynamic Programming</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Bit Manipulation</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Recursion</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Game Theory</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">NP Complete</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Big-O notation</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
</ul>
</li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Abstract Data Types</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Stack</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Array</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>List</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Map</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Multimap</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Set</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Multiset (Bag)</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Graph</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Tree</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
</ul>
</li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript"><code>Queue</code></a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Priority Queue</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Double-ended priority queue</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
<li>[X] <a href="https://github.com/sergeyleschev/leetcode-typescript">Double-ended queue</a> <a href="https://leetcode.com/sergeyleschev/"><code>cert</code></a></li>
</ul>
</li>
<li>[X] <code>System design</code>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/system-design/blob/main/sergeyleschev-system-architect-roadmap.md">Design large-scale systems / Amazon, Dropbox, Instagram, Facebook, Netflix, Pinterest, Twitter, Uber, Youtube</a></li>
</ul>
</li>
</ul>
</li>
</ul>
<div style="page-break-after: always;"></div>
<h2>Project Guidelines</h2>
<p>A set of best practices in my projects.</p>
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#git">Git</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#documentation">Documentation</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#environments">Environments</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#code-style">Code Style</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#logging">Logging</a></li>
<li>[X] <a href="https://github.com/sergeyleschev/sergeyleschev/blob/main/sergeyleschev-fullstack-project-guidelines.md#api">API</a></li>
</ul>
<h2>Licenses & certifications</h2>
<ul>
<li>🏆 LeetCode Global TOP 200 (Swift: <a href="https://leetcode.com/sergeyleschev/">Certificate</a>, Sources: <a href="https://github.com/sergeyleschev/leetcode-swift">Swift</a>).</li>
<li>🏆 Golden Award Muad’Dib’s Challenge (Swift: <a href="https://app.codility.com/cert/view/cert5YT6JA-Y9ZKFEFXEZWGTR3G/">Certificate</a>, Sources: <a href="https://github.com/sergeyleschev/codility-swift">Swift</a>).</li>
<li>LinkedIn Skill Asessment (Mobile): <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Swift/report/">Swift (Programming Language)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Object-Oriented%20Programming%20(OOP)/report/">Object-Oriented Programming (OOP)</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Objective-C/report/">Objective-C</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/C++/report/">C++</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Angular/report/">Ionic</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/JSON/report/">JSON</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/XML/report/">XML</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Android/report/">Android</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Kotlin/report/">Kotlin</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Maven/report/">Maven</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/Java/report/">Java</a>, <a href="https://www.linkedin.com/in/sergeyleschev/detail/assessments/REST%20APIs/report/">REST APIs</a>.</li>
<li> Health & Fitness iOS App / <a href="https://github.com/sergeyleschev/motivation">Fitness Motivation</a> / AppStore (Sources: <a href="https://github.com/sergeyleschev/motivation">SwiftUI</a>) @ S. Leschev.</li>
<li> Utility MacOS App / Calc-It / Core (Sources: <a href="https://github.com/sergeyleschev/calc-it">Swift</a>) @ S. Leschev.</li>
</ul>
<div style="page-break-after: always;"></div>
<h2>Latest Projects</h2>
<h3>[ iOS] Live Stream & Video Chat is the best streaming and video chatting tool.</h3>
<p>Role: Senior iOS Developer, Team Lead. Development architecture and new features.</p>
<p>Tech Stack:</p>
<ul>
<li>Swift 5+.</li>
<li>VIPER (Dependency Injection, Assembly, Services, Interactor, Presenter, State, Adapter) + MVVM (Combine, PromiseKit).</li>
<li>Alomofire, Decodable, Combine.</li>
<li>GCD/Operations.</li>
<li>Agora Video SDK, Chat SDK, Beautification SDK. WebRTC. GRPC.</li>
<li>Modular architecture (Frameworks, Development Pods).</li>
<li>SwiftGen (Localization, Image, Colors).</li>
<li>SwiftLint.</li>
<li>Auth: Facebook, Google, Apple ID.</li>
<li>Firebase, Crashlytics, Amplitude, AppsFlyer.</li>
<li>Push-notifications (Firebase).</li>
<li>UIKit, Autolayout, Core Animations, Skeleton, Lottie.</li>
<li>Git (Flow, CodeReview), Figma.</li>
</ul>
<div style="page-break-after: always;"></div>
<h3>[ iOS] Health & Fitness iOS App</h3>
<p>Role: Senior iOS Developer, Team Lead. Development architecture and new features.</p>
<p>Tech Stack:</p>
<ul>
<li>Swift 5+.</li>
<li>Clean Swift Architecture.</li>
<li>Alamofire, ObjectMapper.</li>
<li>GCD/Operations.</li>
<li>AVFoundation, Streaming: HLS (Cloudflare/nginx).</li>
<li>AirPlay [Composition (video+audio), Secondary Display].</li>
<li>Realm.</li>
<li>Modular architecture (Frameworks, Development Pods).</li>
<li>SwiftGen (Localization, Image, Colors).</li>
<li>SwiftLint.</li>
<li>Auth: Facebook, Google, Apple ID, Fitbit.</li>
<li>Amplitude, Crashlytics, AppsFlyer (+OneLink).</li>
<li>Analytics: Facebook (SKAd + Conversions API).</li>
<li>Push-notifications (OneSignal).</li>
<li>UIKit, Autolayout, Core Animations, Lottie.</li>
<li>Git (Flow, CodeReview), Zeplin, Figma, Sketch.</li>
</ul>
<div style="page-break-after: always;"></div>
<h3>[ iOS] Health & Fitness iOS App (Motivations Coach, Pet Project)</h3>
<p>Role: iOS Developer.</p>
<p>Tech Stack:</p>
<ul>
<li>SwiftUI.</li>
<li>Watch Extension (WatchOS).</li>
<li>AppClip Extension.</li>
<li>Widget (iOS 14).</li>
<li>ObjectMapper.</li>
<li>URLSession.</li>
<li>Keychain.</li>
<li>Lottie.</li>
<li>Push Notifications.</li>
<li>GCD/Operations.</li>
<li>Git, Figma, Sketch.</li>
</ul>
<p>Website: <a href="https://sergeyleschev.github.io/motivations.coach/">motivations.coach</a></p>
<p>Sources: <a href="https://github.com/sergeyleschev/Motivation">SwiftUI</a></p>
<div style="page-break-after: always;"></div>
<h2>Contacts</h2>
<p>I have a clear focus on time-to-market and don’t prioritize technical debt.</p>
<p>🛩️ #startups #management #cto #swift #typescript #database</p>
<p>📧 Email: <a href="mailto:sergey.leschev@gmail.com">sergey.leschev@gmail.com</a></p>
<p>👋 LinkedIn: <a href="https://www.linkedin.com/in/sergeyleschev/">https://linkedin.com/in/sergeyleschev</a></p>
<p>👋 Twitter: <a href="https://twitter.com/sergeyleschev">https://twitter.com/sergeyleschev</a></p>
<p>👋 Github: <a href="https://github.com/sergeyleschev">https://github.com/sergeyleschev</a></p>
<p>🌎 Website: <a href="https://sergeyleschev.github.io">https://sergeyleschev.github.io</a></p>
<p>🖨️ PDF: <a href="https://github.com/sergeyleschev/sergeyleschev/raw/main/sergeyleschev-ios-roadmap.pdf">Download</a></p>
<p>ALT: SIARHEI LIASHCHOU</p>
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<article id="personal-details" class="markdown-body"><h1> <a href="https://sergeyleschev.github.io"><img itemprop="image" alt="Sergey Leschev" src="apple-touch-icon.png" width=27/></a> Sergey Leschev</h1>
<img itemprop="image" alt="Sergey Leschev" src="https://avatars.githubusercontent.com/u/23653372?v=4&raw=true" width=300/>
<h3>FullStack Developer Roadmap</h3>
<h2>🏆 Awards</h2>
<h3>Ranking #Dev: Global TOP 200 (<a href="https://leetcode.com/sergeyleschev/">Certificate</a>)</h3>
<p><a href="https://leetcode.com/sergeyleschev/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/leetcode-ranking.png?raw=true" width="410"></a></p>
<p><a href="https://leetcode.com/sergeyleschev/"><img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/leetcode-medals.png?raw=true" width="280"></a></p>
<p><strong>Languages</strong>: TypeScript, Shell, Database (T-SQL, PL/SQL, MySQL), Concurrency (Python3).</p>
<p><strong>Algorithms</strong>: linked lists, binary search, hash table, queue/stack, dfs/bfs, sort, heap/hash, two pointers, sliding window, tree, greedy problems etc.</p>
<hr>
<div style="page-break-after: always;"></div>
<h3>Golden Award for the Year of the Tiger Challenge</h3>
<img itemprop="image" alt="Sergey Leschev" src="https://github.com/sergeyleschev/sergeyleschev/blob/main/codility-ranking.png?raw=true" width="410">
<p><strong>Algorithmic skills</strong>: Dynamic programming, Greedy algorithms, Catepillar method, Binary search algorithm, Fibonacci numbers, Euclidean algorithm, Sieve of Eratosthenes, Prime and composite numbers, Maximum slice problem, Stack and Queues, Sorting, Time Complexity, Arrays, Prefix Sums, Leader, etc.</p>
<p><strong>Contest</strong>: Algorithms, SQL, Data Structures, Bitwise operations (bit-ops), Frontend.</p>
<hr>
<div style="page-break-after: always;"></div>
<p>Tapping on a link will take you to relevant certificates.</p>
<h2>Front-End</h2>
<ul>
<li>[X] Basics
<ul>
<li>[X] HTML
<ul>
<li>[X] Learn the basics of HTML</li>
<li>[X] Make a few pages as an exercise</li>
</ul>
</li>
<li>[X] CSS
<ul>
<li>[X] Learn the basics of CSS</li>
<li>[X] Style pages from previous step</li>
<li>[X] Build a page with grid and flexbox</li>
</ul>
</li>
<li>[X] JS Basics
<ul>
<li>[X] Get familiar with the syntax</li>
<li>[X] Learn basic operations on DOM</li>
<li>[X] Learn mechanisms typical for JS (Hoisting, Event Bubbling, Prototyping)</li>
<li>[X] Make some AJAX (XHR) calls</li>
<li>[X] Learn new features (ECMA Script 6+)</li>
<li>[X] Additionally, get familiar with the jQuery library</li>
</ul>
</li>
</ul>
</li>
<li>[X] General Development Skills
<ul>
<li>[X] Learn GIT, create a few repositories on GitHub, share your code with other people</li>
<li>[X] Know HTTP(S) protocol, request methods (GET, POST, PUT, PATCH, DELETE, OPTIONS)</li>
<li>[X] Get familiar with terminal, configure your shell (bash, zsh, fish)</li>
<li>[X] Studied algorithms and data structures in the university</li>
<li>[X] Studied design patterns in the university</li>
</ul>
</li>
<li>[X] Learn React on <a href="https://reactjs.org/tutorial/tutorial.html">official website</a> or complete some <a href="https://egghead.io/courses/the-beginner-s-guide-to-react">courses</a></li>
<li>[X] Get familiar with tools that you will be using
<ul>
<li>[X] Package Managers
<ul>
<li>[X] <a href="https://www.npmjs.com/">npm</a></li>
<li>[X] <a href="https://yarnpkg.com/lang/en/">yarn</a></li>
</ul>
</li>
<li>[X] Task Runners
<ul>
<li>[X] <a href="https://docs.npmjs.com/misc/scripts">npm scripts</a></li>
<li>[X] <a href="https://gulpjs.com/">gulp</a></li>
</ul>
</li>
<li>[X] <a href="https://webpack.js.org/">Webpack</a></li>
<li>[X] <a href="https://rollupjs.org/guide/en">Rollup</a></li>
<li>[X] <a href="https://parceljs.org/">Parcel</a></li>
</ul>
</li>
<li>[X] Styling
<ul>
<li>[X] CSS Preprocessor
<ul>
<li>[X] <a href="https://sass-lang.com/">Sass/CSS</a></li>
<li>[X] <a href="https://postcss.org/">PostCSS</a></li>
<li>[X] <a href="http://lesscss.org/">Less</a></li>
<li>[X] <a href="http://stylus-lang.com/">Stylus</a></li>
</ul>
</li>
<li>[X] CSS Frameworks
<ul>
<li>[X] <a href="https://getbootstrap.com/">Bootstrap</a></li>
<li>[X] <a href="https://materializecss.com/">Materialize</a>, <a href="https://material-ui.com/">Material UI</a>, <a href="https://getmdl.io/">Material Design Lite</a></li>
<li>[X] <a href="https://bulma.io/">Bulma</a></li>
<li>[X] <a href="https://semantic-ui.com/">Semantic UI</a></li>
</ul>
</li>
<li>[X] CSS Architecture
<ul>
<li>[X] <a href="http://getbem.com/">BEM</a></li>
<li>[X] <a href="https://github.com/css-modules/css-modules">CSS Modules</a></li>
<li>[X] <a href="https://acss.io/">Atomic</a></li>
<li>[X] <a href="https://github.com/stubbornella/oocss/wiki">OOCSS</a></li>
<li>[X] <a href="https://smacss.com/">SMACSS</a></li>
<li>[X] <a href="https://suitcss.github.io/">SUITCSS</a></li>
</ul>
</li>
<li>[X] CSS in JS
<ul>
<li>[X] <a href="https://www.styled-components.com/">Styled Components</a></li>
<li>[X] <a href="https://formidable.com/open-source/radium/">Radium</a></li>
<li>[X] <a href="https://emotion.sh/">Emotion</a></li>
<li>[X] <a href="http://cssinjs.org/">JSS</a></li>
<li>[X] <a href="https://github.com/Khan/aphrodite">Aphrodite</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] State Management
<ul>
<li>[X] <a href="https://reactjs.org/docs/faq-state.html">Component State</a>/<a href="https://reactjs.org/docs/context.html">Context API</a></li>
<li>[X] <a href="https://redux.js.org/">Redux</a>
<ul>
<li>[X] Async actions (Side Effects)
<ul>
<li>[X] <a href="https://github.com/reduxjs/redux-thunk">Redux Thunk</a></li>
<li>[X] <a href="https://github.com/Lukasz-pluszczewski/redux-better-promise">Redux Better Promise</a></li>
<li>[X] <a href="https://redux-saga.js.org/">Redux Saga</a></li>
<li>[X] <a href="https://redux-observable.js.org">Redux Observable</a></li>
</ul>
</li>
<li>[X] Helpers
<ul>
<li>[X] <a href="https://rematch.gitbooks.io/rematch/">Rematch</a></li>
<li>[X] <a href="https://github.com/reduxjs/reselect">Reselect</a></li>
</ul>
</li>
<li>[X] Data persistence
<ul>
<li>[X] <a href="https://github.com/rt2zz/redux-persist">Redux Persist</a></li>
<li>[X] <a href="https://github.com/adam-golab/redux-phoenix">Redux Phoenix</a></li>
</ul>
</li>
<li>[X] <a href="https://redux-form.com">Redux Form</a></li>
</ul>
</li>
</ul>
<ol start="3">
<li><a href="https://mobx.js.org/">MobX</a></li>
</ol>
</li>
<li>[X] Type Checkers
<ul>
<li>[X] <a href="https://reactjs.org/docs/typechecking-with-proptypes.html">PropTypes</a></li>
<li>[X] <a href="https://www.typescriptlang.org/">TypeScript</a></li>
<li>[X] <a href="https://flow.org/en/">Flow</a></li>
</ul>
</li>
<li>[X] Form Helpers
<ul>
<li>[X] <a href="https://redux-form.com">Redux Form</a></li>
<li>[X] <a href="https://github.com/jaredpalmer/formik">Formik</a></li>
<li>[X] <a href="https://github.com/formsy/formsy-react">Formsy</a></li>
<li>[X] <a href="https://github.com/final-form/final-form">Final Form</a></li>
</ul>
</li>
<li>[X] Routing
<ul>
<li>[X] <a href="https://reacttraining.com/react-router/">React-Router</a></li>
<li>[X] <a href="https://router5.js.org/">Router5</a></li>
<li>[X] <a href="https://github.com/faceyspacey/redux-first-router">Redux-First Router</a></li>
<li>[X] <a href="https://reach.tech/router/">Reach Router</a></li>
</ul>
</li>
<li>[X] API Clients
<ul>
<li>[X] REST
<ul>
<li>[X] <a href="https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API">Fetch</a></li>
<li>[X] <a href="https://visionmedia.github.io/superagent/">SuperAgent</a></li>
<li>[X] <a href="https://github.com/axios/axios">axios</a></li>
</ul>
</li>
<li>[X] GraphQL
<ul>
<li>[X] <a href="https://www.apollographql.com/docs/react/">Apollo</a></li>
<li>[X] <a href="https://facebook.github.io/relay/">Relay</a></li>
<li>[X] <a href="https://github.com/FormidableLabs/urql">urql</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] Utility Libraries
<ul>
<li>[X] <a href="https://lodash.com/">Lodash</a></li>
<li>[X] <a href="https://momentjs.com/">Moment</a></li>
<li>[X] <a href="https://github.com/JedWatson/classnames">classnames</a></li>
<li>[X] <a href="http://numeraljs.com/">Numeral</a></li>
<li>[X] <a href="http://reactivex.io/">RxJS</a></li>
<li>[X] <a href="https://facebook.github.io/immutable-js/">ImmutableJS</a></li>
<li>[X] <a href="https://ramdajs.com/">Ramda</a></li>
</ul>
</li>
<li>[X] Testing
<ul>
<li>[X] Unit Testing
<ul>
<li>[X] <a href="https://facebook.github.io/jest/">Jest</a></li>
</ul>
</li>
<li>[X] End to End Testing
<ul>
<li>[X] <a href="https://www.seleniumhq.org/">Selenium</a>, <a href="http://webdriver.io/">Webdriver</a></li>
</ul>
</li>
<li>[X] Integration Testing
<ul>
<li>[X] <a href="https://karma-runner.github.io/">Karma</a></li>
</ul>
</li>
</ul>
</li>
<li>[X] Internationalization
<ul>
<li>[X] <a href="https://github.com/yahoo/react-intl">React Intl</a></li>
<li>[X] <a href="https://react.i18next.com/">React i18next</a></li>
</ul>
</li>
<li>[X] Server Side Rendering
<ul>
<li>[X] <a href="https://nextjs.org/">Next.js</a> <a href="https://github.com/sergeyleschev/next.js"><code>sources</code></a></li>
</ul>
</li>
<li>[X] Static Site Generator
<ul>
<li>[X] <a href="https://www.gatsbyjs.org/">Gatsby</a></li>
</ul>
</li>
<li>[X] Backend Framework Integration
<ul>
<li>[X] <a href="https://shakacode.gitbooks.io/react-on-rails/content/">React on Rails</a></li>
</ul>
</li>
<li>[X] Mobile
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/react-native">React Native</a></li>
</ul>
</li>
<li>[X] Desktop
<ul>
<li>[X] <a href="https://github.com/sergeyleschev/electron">Electron</a></li>
<li>[X] <a href="https://github.com/Microsoft/react-native-windows">React Native Windows</a></li>
</ul>
</li>
</ul>
<div style="page-break-after: always;"></div>
<h2>Back-End</h2>
<ul>
<li>
<p>[X] Prerequisites</p>
<ul>
<li>[X] <a href="https://www.w3schools.com/js/">JavaScript</a></li>
<li>[X] <a href="https://docs.npmjs.com/">NPM</a></li>
<li>[X] <a href="https://nodejs.org/en/docs/">Node.js</a></li>
<li>[X] <a href="https://www.w3schools.com/js/js_versions.asp">ECMAScript</a></li>
</ul>
</li>
<li>
<p>[X] General Development Skills</p>
<ul>
<li>[X] Learn GIT, create a few repositories on GitHub, share your code with other people</li>
<li>[X] Know HTTP(S) protocol, request methods (GET, POST, PUT, PATCH, DELETE, OPTIONS)</li>
<li>[X] Studied algorithms and data structures in the university</li>
<li>[X] Studied design patterns in the university</li>
<li>[X] <a href="https://www.w3schools.com/js/js_conventions.asp">Clean code</a></li>
</ul>
</li>
<li>
<p>[X] Web Frameworks</p>
<ul>
<li>[X] <a href="https://expressjs.com/">Express.js</a></li>
<li>[X] <a href="https://adonisjs.com/">Adonis.js</a></li>
<li>[X] <a href="https://www.meteor.com/">Meteor.js</a></li>
<li>[X] <a href="https://nestjs.com/">Nest.js</a></li>
<li>[X] <a href="https://sailsjs.com/">Sails.js</a></li>
<li>[X] <a href="https://koajs.com/">Koa.js</a></li>
<li>[X] <a href="https://loopback.io/">Loopback.io</a></li>
<li>[X] <a href="https://eggjs.org/en/index.html">egg.js</a></li>
<li>[X] <a href="https://midwayjs.org/midway/en/">midway</a></li>
</ul>