diff --git a/apps/backend/prisma/migrations/20250214175437_create_user_indices/migration.sql b/apps/backend/prisma/migrations/20250214175437_create_user_indices/migration.sql
new file mode 100644
index 000000000..0aab20901
--- /dev/null
+++ b/apps/backend/prisma/migrations/20250214175437_create_user_indices/migration.sql
@@ -0,0 +1,11 @@
+-- CreateIndex
+CREATE INDEX "AuthMethod_tenancyId_projectUserId_idx" ON "AuthMethod"("tenancyId", "projectUserId");
+
+-- CreateIndex
+CREATE INDEX "PermissionEdge_parentPermissionDbId_idx" ON "PermissionEdge"("parentPermissionDbId");
+
+-- CreateIndex
+CREATE INDEX "PermissionEdge_childPermissionDbId_idx" ON "PermissionEdge"("childPermissionDbId");
+
+-- CreateIndex
+CREATE INDEX "ProjectUserOAuthAccount_tenancyId_projectUserId_idx" ON "ProjectUserOAuthAccount"("tenancyId", "projectUserId");
diff --git a/apps/backend/prisma/schema.prisma b/apps/backend/prisma/schema.prisma
index b5796880f..a83fba4f4 100644
--- a/apps/backend/prisma/schema.prisma
+++ b/apps/backend/prisma/schema.prisma
@@ -227,6 +227,9 @@ model PermissionEdge {
 
   childPermissionDbId String     @db.Uuid
   childPermission     Permission @relation("ChildPermission", fields: [childPermissionDbId], references: [dbId], onDelete: Cascade)
+
+  @@index([parentPermissionDbId])
+  @@index([childPermissionDbId])
 }
 
 model ProjectUser {
@@ -303,6 +306,7 @@ model ProjectUserOAuthAccount {
   oauthAuthMethod  OAuthAuthMethod?
 
   @@id([tenancyId, oauthProviderConfigId, providerAccountId])
+  @@index([tenancyId, projectUserId])
 }
 
 enum ContactChannelType {
@@ -530,6 +534,7 @@ model AuthMethod {
   authMethodConfig AuthMethodConfig @relation(fields: [projectConfigId, authMethodConfigId], references: [projectConfigId, id], onDelete: Cascade)
 
   @@id([tenancyId, id])
+  @@index([tenancyId, projectUserId])
 }
 
 model OtpAuthMethod {