diff --git a/ecommerce/extensions/api/throttles.py b/ecommerce/extensions/api/throttles.py
index 2f8cd236405..c0ed407b649 100644
--- a/ecommerce/extensions/api/throttles.py
+++ b/ecommerce/extensions/api/throttles.py
@@ -11,7 +11,11 @@ def allow_request(self, request, view):
         """Returns True if the request is coming from one of the service users
         and defaults to UserRateThrottle's configured setting otherwise.
         """
-        service_users = [settings.ECOMMERCE_SERVICE_WORKER_USERNAME, settings.PROSPECTUS_WORKER_USERNAME]
+        service_users = [
+            settings.ECOMMERCE_SERVICE_WORKER_USERNAME, 
+            settings.PROSPECTUS_WORKER_USERNAME, 
+            settings.DISCOVERY_SERVICE_WORKER_USERNAME,
+            ]
         if request.user.username in service_users:
             return True
         return super(ServiceUserThrottle, self).allow_request(request, view)
diff --git a/ecommerce/settings/base.py b/ecommerce/settings/base.py
index e6e8de633af..7cf90d7a265 100644
--- a/ecommerce/settings/base.py
+++ b/ecommerce/settings/base.py
@@ -545,6 +545,9 @@
 # Service user for worker processes.
 ECOMMERCE_SERVICE_WORKER_USERNAME = 'ecommerce_worker'
 
+# Service user for Discovery worker processes.
+DISCOVERY_SERVICE_WORKER_USERNAME = 'discovery_worker'
+
 # Worker user used by prospectus to query ecommerce
 PROSPECTUS_WORKER_USERNAME = 'prospectus_worker'
 
@@ -588,7 +591,7 @@
     'DEFAULT_PAGINATION_CLASS': 'ecommerce.extensions.api.pagination.PageNumberPagination',
     'PAGE_SIZE': 20,
     'DEFAULT_THROTTLE_CLASSES': (
-        'rest_framework.throttling.UserRateThrottle',
+        'ecommerce.extensions.api.throttles.ServiceUserThrottle',
     ),
     'DEFAULT_THROTTLE_RATES': {
         'user': '75/minute',
diff --git a/ecommerce/settings/production.py b/ecommerce/settings/production.py
index fef638f8c43..cf772c0ca8d 100644
--- a/ecommerce/settings/production.py
+++ b/ecommerce/settings/production.py
@@ -148,3 +148,6 @@ def get_env_setting(setting):
 
 DCS_SESSION_COOKIE_SAMESITE = config_from_yaml.get('DCS_SESSION_COOKIE_SAMESITE', DCS_SESSION_COOKIE_SAMESITE)
 DCS_SESSION_COOKIE_SAMESITE_FORCE_ALL = config_from_yaml.get('DCS_SESSION_COOKIE_SAMESITE_FORCE_ALL', DCS_SESSION_COOKIE_SAMESITE_FORCE_ALL)
+
+# Service user for Discovery worker processes.
+DISCOVERY_SERVICE_WORKER_USERNAME = config_from_yaml.get('DISCOVERY_SERVICE_WORKER_USERNAME', DISCOVERY_SERVICE_WORKER_USERNAME)