diff --git a/backend/src/main/java/org/sejongisc/backend/common/auth/config/OAuth2SuccessHandler.java b/backend/src/main/java/org/sejongisc/backend/common/auth/config/OAuth2SuccessHandler.java
index 348599f4..85b2cea3 100644
--- a/backend/src/main/java/org/sejongisc/backend/common/auth/config/OAuth2SuccessHandler.java
+++ b/backend/src/main/java/org/sejongisc/backend/common/auth/config/OAuth2SuccessHandler.java
@@ -29,6 +29,7 @@
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
+import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
@@ -101,11 +102,26 @@ public void onAuthenticationSuccess(
         // 5. RefreshToken 저장(DB or Redis)
         refreshTokenService.saveOrUpdateToken(user.getUserId(), refreshToken);
 
-        boolean isProd = Arrays.asList(env.getActiveProfiles()).contains("prod");
+        String[] activeProfiles = env.getActiveProfiles();
+        List<String> profiles = Arrays.asList(activeProfiles);
+
+        boolean isProd = profiles.contains("prod");
+        boolean isDev  = profiles.contains("dev");
+
+// SameSite, Secure 설정 (dev도 prod와 동일하게)
+        String sameSite = (isProd || isDev) ? "None" : "Lax";
+        boolean secure  = (isProd || isDev);
+
+// 도메인 설정
+        String domain;
+        if (isProd) {
+            domain = "sjusisc.com"; // 운영 도메인
+        } else if (isDev) {
+            domain = "sisc-web.duckdns.org"; // 개발 도메인
+        } else {
+            domain = "localhost"; // 기본값
+        }
 
-        String sameSite = isProd ? "None" : "Lax";
-        boolean secure = isProd;
-        String domain = isProd ? "sisc-web.duckdns.org" : "localhost";
 
 
 
diff --git a/backend/src/main/java/org/sejongisc/backend/common/auth/config/SecurityConfig.java b/backend/src/main/java/org/sejongisc/backend/common/auth/config/SecurityConfig.java
index d2ee6a32..fb311ce7 100644
--- a/backend/src/main/java/org/sejongisc/backend/common/auth/config/SecurityConfig.java
+++ b/backend/src/main/java/org/sejongisc/backend/common/auth/config/SecurityConfig.java
@@ -44,6 +44,9 @@ public class SecurityConfig {
     private boolean isProd() {
         return List.of(env.getActiveProfiles()).contains("prod");
     }
+    private boolean isDev() {
+        return List.of(env.getActiveProfiles()).contains("dev");
+    }
 
     @Bean
     public AuthorizationRequestRepository<OAuth2AuthorizationRequest> authorizationRequestRepository() {
@@ -72,8 +75,11 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                         .successHandler(oAuth2SuccessHandler)
                         .failureHandler((req, res, ex) -> {
                             if (isProd()) {
+                                res.sendRedirect("https://sjusisc.com/oauth/fail");
+                            }else if(isDev()){
                                 res.sendRedirect("https://sisc-web.duckdns.org/oauth/fail");
-                            } else {
+                            }
+                            else {
                                 res.sendRedirect("http://localhost:5173/oauth/fail");
                             }
                         })
@@ -121,7 +127,8 @@ public CorsConfigurationSource corsConfigurationSource() {
         CorsConfiguration config = new CorsConfiguration();
         config.setAllowedOriginPatterns(List.of(
                 "http://localhost:5173",
-                "https://sisc-web.duckdns.org"
+                "https://sisc-web.duckdns.org",
+                "https://sjusisc.com"
         ));
         config.setAllowedMethods(List.of("GET", "POST", "PUT", "DELETE", "PATCH", "OPTIONS"));
         config.setAllowedHeaders(List.of("*"));
diff --git a/backend/src/main/java/org/sejongisc/backend/common/config/PrimaryDataSourceConfig.java b/backend/src/main/java/org/sejongisc/backend/common/config/PrimaryDataSourceConfig.java
index 0a954cb6..2d0fbf72 100644
--- a/backend/src/main/java/org/sejongisc/backend/common/config/PrimaryDataSourceConfig.java
+++ b/backend/src/main/java/org/sejongisc/backend/common/config/PrimaryDataSourceConfig.java
@@ -21,6 +21,7 @@
 
 @Configuration
 @EnableTransactionManagement
+@Profile("dev")
 @EnableJpaRepositories(
         basePackages = "org.sejongisc.backend",
         entityManagerFactoryRef = "primaryEntityManagerFactory",
diff --git a/backend/src/main/java/org/sejongisc/backend/common/config/StockDataSourceConfig.java b/backend/src/main/java/org/sejongisc/backend/common/config/StockDataSourceConfig.java
index d617dfe4..552b4d81 100644
--- a/backend/src/main/java/org/sejongisc/backend/common/config/StockDataSourceConfig.java
+++ b/backend/src/main/java/org/sejongisc/backend/common/config/StockDataSourceConfig.java
@@ -7,6 +7,7 @@
 import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Profile;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
 import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
@@ -21,6 +22,7 @@
 
 @Configuration
 @EnableTransactionManagement
+@Profile("dev")
 @EnableJpaRepositories(
         basePackages = "org.sejongisc.backend.stock.repository",
         entityManagerFactoryRef = "stockEntityManagerFactory",