this should work

job_orchestrator_service/utils/kubernetes_adapter.py

@@ -35,5 +35,9 @@ class FlaskKubernetes:
     def corev1api(self) -> kubernetes.client.CoreV1Api:
         return kubernetes.client.CoreV1Api(self.connection)
 
+    @property
+    def customobjectsapi(self) -> kubernetes.client.CustomObjectsApi:
+        return kubernetes.client.CustomObjectsApi(self.connection)
+
 
 k8s = FlaskKubernetes()

job_orchestrator_service/views/job_view.py

@@ -226,7 +226,7 @@ class JobView(FlaskView):
             version = 'v1beta1'
             plural = 'federatedjobs'
 
-            r = k8s.connection.create_namespaced_custom_object(
+            r = k8s.customobjectsapi.create_namespaced_custom_object(
                 group, version, current_app.config['WORKING_NAMESPACE'], plural, pod_object
             )