diff --git a/.env.sample b/.env.sample
index 5233fbac..505020cb 100644
--- a/.env.sample
+++ b/.env.sample
@@ -35,6 +35,9 @@ CORS_ALLOWED_ORIGINS=http://localhost:5000 # 쿠키 인증 사용 시 정확한
 AUDIT_WORKER_COUNT=5      # 비동기 감사 로그 처리를 위한 고루틴 워커 수
 AUDIT_QUEUE_SIZE=2000      # 감사 로그 대기열(채널) 버퍼 크기
 
+# Redis Cache Configuration
+PROFILE_CACHE_TTL=30m     # User Profile Redis 캐시 만료 시간
+
 # Descope Project ID (Required for Auth)
 DESCOPE_PROJECT_ID=P2t...your_descope_project_id
 DESCOPE_MANAGEMENT_KEY=your_descope_management_key_here
diff --git a/backend/internal/handler/auth_handler.go b/backend/internal/handler/auth_handler.go
index a38acc4b..43ea6901 100644
--- a/backend/internal/handler/auth_handler.go
+++ b/backend/internal/handler/auth_handler.go
@@ -3748,10 +3748,30 @@ func (h *AuthHandler) resolveCurrentProfile(c *fiber.Ctx) (*domain.UserProfileRe
 	var err error
 
 	token := h.getBearerToken(c)
+	cookie := c.Get("Cookie")
+	cacheKey := ""
+
+	// 1. Try Redis Cache
+	if h.RedisService != nil {
+		if token != "" {
+			cacheKey = "cache:profile:token:" + token
+		}
+		// Cookie based caching skipped for simplicity/safety
+
+		if cacheKey != "" {
+			cached, _ := h.RedisService.Get(cacheKey)
+			if cached != "" {
+				if json.Unmarshal([]byte(cached), &profile) == nil {
+					return profile, nil
+				}
+			}
+		}
+	}
+
+	// 2. Fetch from Kratos (SoT)
 	if token != "" {
 		profile, err = h.getKratosProfile(token)
 	} else {
-		cookie := c.Get("Cookie")
 		if cookie != "" {
 			profile, err = h.getKratosProfileWithCookie(cookie)
 		}
@@ -3761,26 +3781,40 @@ func (h *AuthHandler) resolveCurrentProfile(c *fiber.Ctx) (*domain.UserProfileRe
 		return nil, errors.New("invalid session (trace:resolve_profile)")
 	}
 
-	// [New] Enrich with Local DB (Roles, TenantID, etc.)
-	if h.UserRepo != nil {
-		localUser, err := h.UserRepo.FindByID(c.Context(), profile.ID)
-		if err == nil && localUser != nil {
-			profile.Role = localUser.Role
-			profile.TenantID = localUser.TenantID
-			profile.RelyingPartyID = localUser.RelyingPartyID
-			if profile.Tenant == nil && localUser.Tenant != nil {
-				profile.Tenant = localUser.Tenant
-			}
-		} else {
-			// 로컬 DB에 없으면 기본 권한 부여
-			profile.Role = domain.RoleUser
-		}
+	// 3. Post-Process (Defaults & Metadata Enrichment)
+	// Default Role if missing (migration safety)
+	if profile.Role == "" {
+		profile.Role = domain.RoleUser
 	}
 
-	// 로컬 DB에 Tenant 정보가 없더라도 companyCode(slug)가 있으면 조회 시도
+	// Fetch Tenant Metadata if missing
+	// Case A: Have TenantID from Kratos -> Fetch by ID
+	if profile.Tenant == nil && profile.TenantID != nil && *profile.TenantID != "" {
+		if tenant, err := h.TenantService.GetTenant(c.Context(), *profile.TenantID); err == nil {
+			profile.Tenant = tenant
+		}
+	}
+	// Case B: Have CompanyCode but no TenantID -> Fetch by Slug
 	if profile.Tenant == nil && profile.CompanyCode != "" {
 		if tenant, err := h.TenantService.GetTenantBySlug(c.Context(), profile.CompanyCode); err == nil && tenant != nil {
 			profile.Tenant = tenant
+			if profile.TenantID == nil || *profile.TenantID == "" {
+				profile.TenantID = &tenant.ID
+			}
+		}
+	}
+
+	// 4. Save to Redis Cache (Short TTL)
+	if h.RedisService != nil && cacheKey != "" {
+		if data, err := json.Marshal(profile); err == nil {
+			ttlStr := os.Getenv("PROFILE_CACHE_TTL")
+			ttl := 30 * time.Minute // Default TTL
+			if ttlStr != "" {
+				if parsed, err := time.ParseDuration(ttlStr); err == nil {
+					ttl = parsed
+				}
+			}
+			_ = h.RedisService.Set(cacheKey, string(data), ttl)
 		}
 	}
 
@@ -4809,6 +4843,8 @@ func (h *AuthHandler) getKratosProfile(sessionToken string) (*domain.UserProfile
 	dept, _ := traits["department"].(string)
 	affType, _ := traits["affiliationType"].(string)
 	compCode, _ := traits["companyCode"].(string)
+	role, _ := traits["role"].(string)
+	tenantID, _ := traits["tenant_id"].(string)
 
 	profile := &domain.UserProfileResponse{
 		ID:              identityID,
@@ -4818,13 +4854,18 @@ func (h *AuthHandler) getKratosProfile(sessionToken string) (*domain.UserProfile
 		Department:      dept,
 		AffiliationType: affType,
 		CompanyCode:     compCode,
+		Role:            role,
 		Metadata:        make(map[string]any),
 	}
 
+	if tenantID != "" {
+		profile.TenantID = &tenantID
+	}
+
 	coreTraits := map[string]bool{
 		"email": true, "name": true, "phone_number": true,
 		"grade": true, "companyCode": true, "department": true,
-		"affiliationType": true,
+		"affiliationType": true, "role": true, "tenant_id": true,
 	}
 	for k, v := range traits {
 		if !coreTraits[k] {
@@ -4847,6 +4888,8 @@ func (h *AuthHandler) getKratosProfileWithCookie(cookie string) (*domain.UserPro
 	dept, _ := traits["department"].(string)
 	affType, _ := traits["affiliationType"].(string)
 	compCode, _ := traits["companyCode"].(string)
+	role, _ := traits["role"].(string)
+	tenantID, _ := traits["tenant_id"].(string)
 
 	profile := &domain.UserProfileResponse{
 		ID:              identityID,
@@ -4856,13 +4899,18 @@ func (h *AuthHandler) getKratosProfileWithCookie(cookie string) (*domain.UserPro
 		Department:      dept,
 		AffiliationType: affType,
 		CompanyCode:     compCode,
+		Role:            role,
 		Metadata:        make(map[string]any),
 	}
 
+	if tenantID != "" {
+		profile.TenantID = &tenantID
+	}
+
 	coreTraits := map[string]bool{
 		"email": true, "name": true, "phone_number": true,
 		"grade": true, "companyCode": true, "department": true,
-		"affiliationType": true,
+		"affiliationType": true, "role": true, "tenant_id": true,
 	}
 	for k, v := range traits {
 		if !coreTraits[k] {
diff --git a/backend/internal/handler/user_handler.go b/backend/internal/handler/user_handler.go
index b67b7358..c316ad5e 100644
--- a/backend/internal/handler/user_handler.go
+++ b/backend/internal/handler/user_handler.go
@@ -252,6 +252,18 @@ func (h *UserHandler) CreateUser(c *fiber.Ctx) error {
 		"grade":           role,
 	}
 
+	// [Resolve TenantID before Kratos creation]
+	var tenantID string
+	if req.CompanyCode != "" && h.TenantService != nil {
+		if tenant, err := h.TenantService.GetTenantBySlug(c.Context(), req.CompanyCode); err == nil && tenant != nil {
+			tenantID = tenant.ID
+		}
+	}
+	attributes["role"] = role
+	if tenantID != "" {
+		attributes["tenant_id"] = tenantID
+	}
+
 	// Merge custom metadata into attributes
 	for k, v := range req.Metadata {
 		// Don't overwrite core fields
@@ -288,11 +300,8 @@ func (h *UserHandler) CreateUser(c *fiber.Ctx) error {
 		Status:          "active",
 		Metadata:        req.Metadata,
 	}
-
-	if req.CompanyCode != "" && h.TenantService != nil {
-		if tenant, err := h.TenantService.GetTenantBySlug(c.Context(), req.CompanyCode); err == nil && tenant != nil {
-			localUser.TenantID = &tenant.ID
-		}
+	if tenantID != "" {
+		localUser.TenantID = &tenantID
 	}
 
 	if h.UserRepo != nil {
@@ -392,7 +401,14 @@ func (h *UserHandler) UpdateUser(c *fiber.Ctx) error {
 		traits["phone_number"] = normalizePhoneNumber(strings.TrimSpace(*req.Phone))
 	}
 	if req.CompanyCode != nil {
-		traits["companyCode"] = strings.TrimSpace(*req.CompanyCode)
+		code := strings.TrimSpace(*req.CompanyCode)
+		traits["companyCode"] = code
+		// Resolve TenantID for Kratos Trait
+		if h.TenantService != nil && code != "" {
+			if tenant, err := h.TenantService.GetTenantBySlug(c.Context(), code); err == nil && tenant != nil {
+				traits["tenant_id"] = tenant.ID
+			}
+		}
 	}
 	if req.Department != nil {
 		traits["department"] = strings.TrimSpace(*req.Department)
@@ -403,13 +419,14 @@ func (h *UserHandler) UpdateUser(c *fiber.Ctx) error {
 			role = "user"
 		}
 		traits["grade"] = role
+		traits["role"] = role
 	}
 
 	// [Refined] Metadata synchronization: replace non-core traits with new Metadata
 	coreTraits := map[string]bool{
 		"email": true, "name": true, "phone_number": true,
 		"grade": true, "companyCode": true, "department": true,
-		"affiliationType": true,
+		"affiliationType": true, "role": true, "tenant_id": true,
 	}
 
 	// 1. Remove existing non-core traits to handle deletions
diff --git a/backend/internal/service/tenant_service.go b/backend/internal/service/tenant_service.go
index a5615a8f..c7cee875 100644
--- a/backend/internal/service/tenant_service.go
+++ b/backend/internal/service/tenant_service.go
@@ -17,6 +17,7 @@ type TenantService interface {
 	RequestRegistration(ctx context.Context, name, slug, description string, domainName string, adminEmail string) (*domain.Tenant, error)
 	GetTenantByDomain(ctx context.Context, emailDomain string) (*domain.Tenant, error)
 	GetTenantBySlug(ctx context.Context, slug string) (*domain.Tenant, error)
+	GetTenant(ctx context.Context, id string) (*domain.Tenant, error)
 	ApproveTenant(ctx context.Context, id string) error
 	SetKetoService(keto KetoService) // 추가
 }
@@ -34,6 +35,10 @@ func (s *tenantService) SetKetoService(keto KetoService) {
 	s.keto = keto
 }
 
+func (s *tenantService) GetTenant(ctx context.Context, id string) (*domain.Tenant, error) {
+	return s.repo.FindByID(ctx, id)
+}
+
 func (s *tenantService) RegisterTenant(ctx context.Context, name, slug, description string, domains []string) (*domain.Tenant, error) {
 	// Validate Slug
 	if ok, msg := utils.ValidateSlug(slug); !ok {
diff --git a/docker/ory/kratos/identity.schema.json b/docker/ory/kratos/identity.schema.json
index 91ed0358..c872f2f7 100644
--- a/docker/ory/kratos/identity.schema.json
+++ b/docker/ory/kratos/identity.schema.json
@@ -62,6 +62,14 @@
           "type": "string",
           "title": "Company Code"
         },
+        "role": {
+          "type": "string",
+          "title": "Role"
+        },
+        "tenant_id": {
+          "type": "string",
+          "title": "Tenant ID"
+        },
         "displayname": {
           "type": "string",
           "title": "Display Name"