diff --git a/doc/changelog.d/265.miscellaneous.md b/doc/changelog.d/265.miscellaneous.md
new file mode 100644
index 00000000..5186c545
--- /dev/null
+++ b/doc/changelog.d/265.miscellaneous.md
@@ -0,0 +1 @@
+Added missing optional arguments for job start/create
\ No newline at end of file
diff --git a/src/ansys/conceptev/core/app.py b/src/ansys/conceptev/core/app.py
index 68228dc1..837c8145 100644
--- a/src/ansys/conceptev/core/app.py
+++ b/src/ansys/conceptev/core/app.py
@@ -324,6 +324,8 @@ def create_submit_job(
     account_id: str,
     hpc_id: str,
     job_name: str | None = None,
+    docker_tag: str = "default",
+    extra_memory: bool = False,
 ) -> dict:
     """Create and then submit a job."""
     if job_name is None:
@@ -341,6 +343,8 @@ def create_submit_job(
         "uploaded_file": uploaded_file,
         "account_id": account_id,
         "hpc_id": hpc_id,
+        "docker_tag": docker_tag,
+        "extra_memory": extra_memory,
     }
     job_info = post(client, "/jobs:start", data=job_start, account_id=account_id)
     return job_info
diff --git a/tests/test_app.py b/tests/test_app.py
index d46d0ea2..612e1da5 100644
--- a/tests/test_app.py
+++ b/tests/test_app.py
@@ -279,6 +279,8 @@ def test_create_submit_job(httpx_mock: HTTPXMock, client: httpx.Client):
         "uploaded_file": mocked_job[1],
         "account_id": account_id,
         "hpc_id": hpc_id,
+        "docker_tag": "default",
+        "extra_memory": False,
     }
     httpx_mock.add_response(
         url=f"{conceptev_url}/jobs:start?design_instance_id=123&account_id={account_id}",