diff --git a/ipv6work/settings.py b/ipv6work/settings.py
index 34196ff..7736cdc 100644
--- a/ipv6work/settings.py
+++ b/ipv6work/settings.py
@@ -48,6 +48,9 @@ INSTALLED_APPS += [
     # before 'django.contrib.admin' app
     'dal',
     'dal_select2',
+
+    # for authorization
+    'rules',
 ]
 
 # Our apps
@@ -115,6 +118,10 @@ AUTH_PASSWORD_VALIDATORS = [
     },
 ]
 
+AUTHENTICATION_BACKENDS = (
+    'rules.permissions.ObjectPermissionBackend',
+    'django.contrib.auth.backends.ModelBackend',
+)
 
 # Internationalization
 # https://docs.djangoproject.com/en/2.1/topics/i18n/
diff --git a/jobs/rules.py b/jobs/rules.py
new file mode 100644
index 0000000..4c7a7bc
--- /dev/null
+++ b/jobs/rules.py
@@ -0,0 +1,8 @@
+import rules
+
+@rules.predicate
+def is_job_poster(user, job):
+    return job.posted_by == user
+
+
+rules.add_perm('jobs.change_job', is_job_poster)
diff --git a/requirements.txt b/requirements.txt
index 45e0996..e4832e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 Django==2.1.2
 django-crispy-forms==1.7.2
 git+https://github.com/yourlabs/django-autocomplete-light.git#egg=django-autocomplete-light
+rules==2.0