diff --git a/docs/installation.rst b/docs/installation.rst
index 68df3f4af..6991c7f87 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -92,6 +92,7 @@ For example:
 - ``rioxarray`` for GeoTIFF support in the assert helpers from ``openeo.testing.results``
 - ``geopandas`` for working with dataframes with geospatial support,
   (e.g. with :py:class:`~openeo.extra.job_management.MultiBackendJobManager`)
+- ``pystac_client`` for creating a STAC API Job Database (e.g. with :py:class:`~openeo.extra.job_management.stac_job_db.STACAPIJobDatabase`)
 
 
 Enabling additional features
diff --git a/openeo/extra/job_management/__init__.py b/openeo/extra/job_management/__init__.py
index 2a37e2b73..8f7f4b7df 100644
--- a/openeo/extra/job_management/__init__.py
+++ b/openeo/extra/job_management/__init__.py
@@ -104,21 +104,6 @@ def get_by_status(self, statuses: List[str], max=None) -> pd.DataFrame:
         """
         ...
 
-    @abc.abstractmethod
-    def initialize_from_df(self, df: pd.DataFrame, on_exists: str = "error") -> "JobDatabaseInterface":
-        """
-        Initialize the job database from a given dataframe,
-
-        :param df: dataframe with some columns your ``start_job`` callable expects
-        :param on_exists: what to do when the job database already exists:
-            - "error": (default) raise an exception
-            - "skip": work with existing database, ignore given dataframe and skip any initialization
-
-        :return: initialized job database.
-        """
-        ...
-
-
 def _start_job_default(row: pd.Series, connection: Connection, *args, **kwargs):
     raise NotImplementedError("No 'start_job' callable provided")
 
diff --git a/openeo/extra/job_management/stac_job_db.py b/openeo/extra/job_management/stac_job_db.py
index 16755b7a2..e794757f3 100644
--- a/openeo/extra/job_management/stac_job_db.py
+++ b/openeo/extra/job_management/stac_job_db.py
@@ -1,16 +1,14 @@
-import concurrent
+import concurrent.futures
 import datetime
 import logging
-from typing import Iterable, List, Union
+from typing import Iterable, List
 
 import geopandas as gpd
 import numpy as np
 import pandas as pd
 import pystac
+import pystac_client
 import requests
-from pystac import Collection, Item
-from pystac_client import Client
-from requests.auth import HTTPBasicAuth
 from shapely.geometry import mapping, shape
 
 from openeo.extra.job_management import JobDatabaseInterface, MultiBackendJobManager
@@ -45,7 +43,7 @@ def __init__(
         :param geometry_column: The name of the geometry column in the job metadata that implements __geo_interface__.
         """
         self.collection_id = collection_id
-        self.client = Client.open(stac_root_url)
+        self.client = pystac_client.Client.open(stac_root_url)
 
         self._auth = auth
         self.has_geometry = has_geometry
@@ -54,7 +52,7 @@ def __init__(
         self.bulk_size = 500
 
     def exists(self) -> bool:
-        return len([c.id for c in self.client.get_collections() if c.id == self.collection_id]) > 0
+        return any(c.id == self.collection_id for c in self.client.get_collections())
 
     def initialize_from_df(self, df: pd.DataFrame, *, on_exists: str = "error"):
         """
@@ -108,7 +106,6 @@ def series_from(self, item: pystac.Item) -> pd.Series:
         item_dict = item.to_dict()
         item_id = item_dict["id"]
         dt = item_dict["properties"]["datetime"]
-        item_dict["datetime"] = pystac.utils.str_to_datetime(dt)
 
         return pd.Series(item_dict["properties"], name=item_id)
 
@@ -151,6 +148,9 @@ def item_from(self, series: pd.Series) -> pystac.Item:
         return item
 
     def count_by_status(self, statuses: Iterable[str] = ()) -> dict:
+        if isinstance(statuses, str):
+            statuses = {statuses}
+        statuses = set(statuses)
         items = self.get_by_status(statuses, max=200)
         if items is None:
             return {k: 0 for k in statuses}
@@ -199,13 +199,13 @@ def handle_row(series):
 
         self._upload_items_bulk(self.collection_id, all_items)
 
-    def _prepare_item(self, item: Item, collection_id: str):
+    def _prepare_item(self, item: pystac.Item, collection_id: str):
         item.collection_id = collection_id
 
         if not item.get_links(pystac.RelType.COLLECTION):
             item.add_link(pystac.Link(rel=pystac.RelType.COLLECTION, target=item.collection_id))
 
-    def _ingest_bulk(self, items: Iterable[Item]) -> dict:
+    def _ingest_bulk(self, items: List[pystac.Item]) -> dict:
         collection_id = items[0].collection_id
         if not all(i.collection_id == collection_id for i in items):
             raise Exception("All collection IDs should be identical for bulk ingests")
@@ -219,7 +219,7 @@ def _ingest_bulk(self, items: Iterable[Item]) -> dict:
         _check_response_status(response, _EXPECTED_STATUS_POST)
         return response.json()
 
-    def _upload_items_bulk(self, collection_id: str, items: Iterable[Item]) -> None:
+    def _upload_items_bulk(self, collection_id: str, items: List[pystac.Item]) -> None:
         chunk = []
         futures = []
 
@@ -246,7 +246,7 @@ def join_url(self, url_path: str) -> str:
         """
         return str(self.base_url + "/" + url_path)
 
-    def _create_collection(self, collection: Collection) -> dict:
+    def _create_collection(self, collection: pystac.Collection) -> dict:
         """Create a new collection.
 
         :param collection: pystac.Collection object to create in the STAC API backend (or upload if you will)
@@ -254,7 +254,7 @@ def _create_collection(self, collection: Collection) -> dict:
         :return: dict that contains the JSON body of the HTTP response.
         """
 
-        if not isinstance(collection, Collection):
+        if not isinstance(collection, pystac.Collection):
             raise TypeError(
                 f'Argument "collection" must be of type pystac.Collection, but its type is {type(collection)=}'
             )
diff --git a/tests/extra/job_management/test_stac_job_db.py b/tests/extra/job_management/test_stac_job_db.py
index 7eeb16c68..69c9d866c 100644
--- a/tests/extra/job_management/test_stac_job_db.py
+++ b/tests/extra/job_management/test_stac_job_db.py
@@ -21,7 +21,7 @@ def mock_auth():
 
 @pytest.fixture
 def mock_stac_api_job_database(mock_auth) -> STACAPIJobDatabase:
-    return STACAPIJobDatabase(collection_id="test_id", stac_root_url="http://fake-stac-api", auth=mock_auth)
+    return STACAPIJobDatabase(collection_id="test_id", stac_root_url="http://fake-stac-api.test", auth=mock_auth)
 
 
 @pytest.fixture