diff --git a/services/platform/apps/common/context_processors.py b/services/platform/apps/common/context_processors.py
index 77e1c405..6747e7ee 100644
--- a/services/platform/apps/common/context_processors.py
+++ b/services/platform/apps/common/context_processors.py
@@ -58,7 +58,7 @@ def user_permissions(request: HttpRequest) -> dict[str, Any]:
             "can_view_audit": request.user.has_perm("audit.view_auditlog"),
         },
         "user_role": getattr(request.user, "role", "user"),
-        "can_access_admin": request.user.is_staff,
+        "can_access_admin": getattr(request.user, "is_staff_user", False),
     }
 
 
diff --git a/services/platform/apps/common/decorators.py b/services/platform/apps/common/decorators.py
index 6d97c1dc..6a4e522c 100644
--- a/services/platform/apps/common/decorators.py
+++ b/services/platform/apps/common/decorators.py
@@ -202,7 +202,7 @@ def can_manage_financial_data(user: User) -> bool:
     if user.is_superuser:
         return True
 
-    if not user.is_staff:
+    if not user.is_staff_user:
         return False
 
     allowed_roles = ["admin", "billing", "manager"]
diff --git a/services/platform/apps/infrastructure/permissions.py b/services/platform/apps/infrastructure/permissions.py
index faf93440..d87a7c80 100644
--- a/services/platform/apps/infrastructure/permissions.py
+++ b/services/platform/apps/infrastructure/permissions.py
@@ -87,7 +87,7 @@ def can_deploy_nodes(user: User) -> bool:
         return True
 
     # Staff with deploy permission
-    if user.is_staff and user.has_perm(PERM_DEPLOY_NODES):
+    if user.is_staff_user and user.has_perm(PERM_DEPLOY_NODES):
         return True
 
     return user.has_perm(PERM_DEPLOY_NODES)
diff --git a/services/platform/apps/orders/views.py b/services/platform/apps/orders/views.py
index 332f41ef..b6d3ce4d 100644
--- a/services/platform/apps/orders/views.py
+++ b/services/platform/apps/orders/views.py
@@ -144,14 +144,14 @@ def _validate_manual_price_override(
     manual_price_cents: int, product_price_cents: int, user: User, context: str = ""
 ) -> tuple[bool, str]:
     """🔒 Validate manual price override for security"""
-    if not hasattr(user, "is_staff") or not user.is_staff:
+    if not getattr(user, "is_staff_user", False):
         logger.warning(
             f"⛔ [Orders] Price Security: Unauthorized price override attempt by user {getattr(user, 'id', 'Unknown')} ({getattr(user, 'email', 'Unknown')}) in context: {context}"
         )
         return False, "Insufficient permissions for price override"
 
     # Check for specific financial permissions (staff role required)
-    if not (user.is_superuser or (hasattr(user, "staff_role") and user.staff_role in ["admin", "billing"])):
+    if not (user.is_superuser or getattr(user, "staff_role", "") in ["admin", "billing"]):
         logger.warning(
             f"⛔ [Orders] Price Security: Staff user {getattr(user, 'id', 'Unknown')} ({getattr(user, 'email', 'Unknown')}) lacks financial permissions for price override in context: {context}"
         )
diff --git a/services/platform/tests/orders/test_orders_security.py b/services/platform/tests/orders/test_orders_security.py
index 60ad6497..833ba26a 100644
--- a/services/platform/tests/orders/test_orders_security.py
+++ b/services/platform/tests/orders/test_orders_security.py
@@ -588,7 +588,7 @@ def test_permission_system_consistency(self) -> None:
             (True, False, ""): False,  # Staff with no role
             (True, False, None): False,  # Staff with None role
             (False, True, ""): True,  # Superuser overrides everything
-            (False, False, "admin"): False,  # Non-staff with admin role should be False
+            (False, False, "admin"): True,  # staff_role="admin" is staff via is_staff_user
         }
 
         for (is_staff, is_superuser, staff_role), expected in permission_matrix.items():