diff --git a/frontend/.gitignore b/frontend/.gitignore
index f0abd802..348bb0b4 100644
--- a/frontend/.gitignore
+++ b/frontend/.gitignore
@@ -11,6 +11,7 @@ node_modules
 dist
 dist-ssr
 *.local
+.env*
 
 # Editor directories and files
 .vscode/*
diff --git a/frontend/apps/client/src/features/login/api/mutations.ts b/frontend/apps/client/src/features/login/api/mutations.ts
index 1ed1f5b2..d989f27f 100644
--- a/frontend/apps/client/src/features/login/api/mutations.ts
+++ b/frontend/apps/client/src/features/login/api/mutations.ts
@@ -1,5 +1,5 @@
-import { useMutation } from '@tanstack/react-query';
-import { useNavigate } from '@tanstack/react-router';
+import { createMutation } from '@endolphin/core/utils';
+import { redirect } from '@tanstack/react-router';
 import { accessTokenService } from '@utils/auth/accessTokenService';
 
 import type { JWTRequest } from '../model';
@@ -9,23 +9,21 @@ interface JWTMutationProps extends JWTRequest {
   lastPath: string | null;
 }
 
-export const useJWTMutation = () => {
-  const navigate = useNavigate();
-  
-  const { mutate } = useMutation({
+export const jwtMutation = () => {
+  const { mutateAsync } = createMutation({
     mutationFn: ({ code }: JWTMutationProps) => loginApi.getJWT(code),
     onSuccess: (response, { lastPath }) => {
       accessTokenService.setAccessToken(response);
-      navigate({
+      throw redirect({
         to: lastPath || '/home',
       });
     },
     onError: () => {
-      navigate({
+      throw redirect({
         to: '/login',
       });
     },
   });
 
-  return { loginMutate: mutate };
+  return { loginMutate: mutateAsync };
 };
\ No newline at end of file
diff --git a/frontend/apps/client/src/main.tsx b/frontend/apps/client/src/main.tsx
index c54eb488..790de90e 100644
--- a/frontend/apps/client/src/main.tsx
+++ b/frontend/apps/client/src/main.tsx
@@ -1,3 +1,4 @@
+import { setDefaultMutationErrorHandler } from '@endolphin/core/utils';
 import { QueryCache, QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { createRouter, RouterProvider } from '@tanstack/react-router';
 import { StrictMode } from 'react';
@@ -41,6 +42,8 @@ const router = createRouter({
   },
 });
 
+setDefaultMutationErrorHandler(handleError);
+
 declare module '@tanstack/react-router' {
   interface Register {
     router: typeof router;
diff --git a/frontend/apps/client/src/routes/oauth.redirect/calendar/index.tsx b/frontend/apps/client/src/routes/oauth.redirect/calendar/index.tsx
index cd68906c..f1016f8c 100644
--- a/frontend/apps/client/src/routes/oauth.redirect/calendar/index.tsx
+++ b/frontend/apps/client/src/routes/oauth.redirect/calendar/index.tsx
@@ -1,23 +1,10 @@
-import { useQueryClient } from '@tanstack/react-query';
-import { createFileRoute, useNavigate } from '@tanstack/react-router';
-import { useEffect } from 'react';
+import { createFileRoute, redirect } from '@tanstack/react-router';
 
 import { calendarKeys } from '@/features/my-calendar/api/keys';
 
-const Redirect = () => {
-  const queryClient = useQueryClient();
-  const navigate = useNavigate();
-
-  useEffect(() => {
-    (async () => {
-      await queryClient.invalidateQueries({ queryKey: calendarKeys.all });
-      navigate({ to: '/my-calendar' });
-    })();
-  }, [queryClient, navigate]);
-  
-  return null;
-};
-
 export const Route = createFileRoute('/oauth/redirect/calendar/')({
-  component: Redirect,
+  beforeLoad: async ({ context }) => {
+    await context.queryClient.invalidateQueries({ queryKey: calendarKeys.all });
+    throw redirect({ to: '/my-calendar' });
+  },
 });
\ No newline at end of file
diff --git a/frontend/apps/client/src/routes/oauth.redirect/login/index.tsx b/frontend/apps/client/src/routes/oauth.redirect/login/index.tsx
index 8e3a91b9..47a6b43e 100644
--- a/frontend/apps/client/src/routes/oauth.redirect/login/index.tsx
+++ b/frontend/apps/client/src/routes/oauth.redirect/login/index.tsx
@@ -1,24 +1,18 @@
-import { createFileRoute, useSearch } from '@tanstack/react-router';
-import { useEffect } from 'react';
+import { createFileRoute } from '@tanstack/react-router';
 
-import { useJWTMutation } from '@/features/login/api/mutations';
+import { jwtMutation } from '@/features/login/api/mutations';
 import { getLastRoutePath } from '@/utils/route';
 
-const Redirect = () => {
-  const { loginMutate } = useJWTMutation();
-  const lastPath = getLastRoutePath();
-  const params: { code: string } = useSearch({ from: '/oauth/redirect/login/' });
-  const { code } = params;
-
-  useEffect(() => {
-    if (code) {
-      loginMutate({ code, lastPath });
-    }
-  }, [code, loginMutate, lastPath]);
-
-  return null;
+type SearchWithCode = { 
+  code?: string; 
 };
 
 export const Route = createFileRoute('/oauth/redirect/login/')({
-  component: Redirect,
+  beforeLoad: async ({ search }: { search: SearchWithCode }) => {
+    const lastPath = getLastRoutePath();
+    const { loginMutate } = jwtMutation();
+    if (search.code) {
+      await loginMutate({ code: search.code, lastPath });
+    }
+  },
 });
\ No newline at end of file
diff --git a/frontend/packages/core/src/utils/index.ts b/frontend/packages/core/src/utils/index.ts
index ed1f3473..665a8368 100644
--- a/frontend/packages/core/src/utils/index.ts
+++ b/frontend/packages/core/src/utils/index.ts
@@ -2,4 +2,5 @@ export { default as clsx } from './clsx';
 export * from './common';
 export * from './context';
 export * from './date';
-export * from './jsx';
\ No newline at end of file
+export * from './jsx';
+export * from './network';
\ No newline at end of file
diff --git a/frontend/packages/core/src/utils/network/createMutation.ts b/frontend/packages/core/src/utils/network/createMutation.ts
new file mode 100644
index 00000000..46033be1
--- /dev/null
+++ b/frontend/packages/core/src/utils/network/createMutation.ts
@@ -0,0 +1,54 @@
+type MutationFn<TArgs, TRes> = (args: TArgs) => Promise<TRes>;
+
+interface RedirectMutationOptions<TArgs, TRes> {
+  mutationFn: MutationFn<TArgs, TRes>;
+  onSuccess?: (response: TRes, args: TArgs) => unknown;
+  onError?: (error: unknown, args: TArgs) => unknown;
+}
+
+type Mutation<TArgs> = {
+  mutate: (args: TArgs) => void;
+  mutateAsync: (args: TArgs) => Promise<void>;
+};
+
+let globalHandleError: (error: unknown) => unknown;
+
+const isRedirectError = (error: unknown): boolean => (
+  typeof error === 'object' && error !== null 
+    && 'isRedirect' in error && error.isRedirect === true
+);
+
+export const setDefaultMutationErrorHandler = (fn: (error: unknown) => void) => {
+  globalHandleError = fn;
+};
+
+/**
+ * 리액트 컴포넌트 외부에서 사용할 수 있는 뮤테이션 함수 생성기.
+ */
+export const createMutation = <TArgs, TRes>(
+  options: RedirectMutationOptions<TArgs, TRes>,
+): Mutation<TArgs> => {
+
+  const mutateAsync = async (args: TArgs) => {
+    try {
+      const response = await options.mutationFn(args);
+      options.onSuccess?.(response, args);
+    } catch (error) {
+      if (isRedirectError(error)) throw error;
+      globalHandleError?.(error);
+      options.onError?.(error, args);
+      throw error;
+    }
+  };
+
+  const mutate = (args: TArgs) => {
+    options.mutationFn(args)
+      .then(res => options.onSuccess?.(res, args))
+      .catch(err => {
+        globalHandleError?.(err);
+        options.onError?.(err, args);
+      });
+  };
+
+  return { mutate, mutateAsync };
+};
diff --git a/frontend/packages/core/src/utils/network/index.ts b/frontend/packages/core/src/utils/network/index.ts
new file mode 100644
index 00000000..f8dac7fb
--- /dev/null
+++ b/frontend/packages/core/src/utils/network/index.ts
@@ -0,0 +1 @@
+export * from './createMutation';
\ No newline at end of file