diff --git a/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceController.java b/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceController.java
index 155959d8..42559260 100644
--- a/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceController.java
+++ b/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceController.java
@@ -11,13 +11,12 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
-import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 import java.util.UUID;
 
-@Controller
+@RestController
 @RequiredArgsConstructor
 @RequestMapping("/api/attendance")
 @Slf4j
diff --git a/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceSessionController.java b/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceSessionController.java
index ad8c8d78..19db2323 100644
--- a/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceSessionController.java
+++ b/backend/src/main/java/org/sejongisc/backend/attendance/controller/AttendanceSessionController.java
@@ -10,13 +10,12 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
-import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 import java.util.UUID;
 
-@Controller
+@RestController
 @RequiredArgsConstructor
 @RequestMapping("/api/attendance/sessions")
 @Slf4j
diff --git a/backend/src/main/java/org/sejongisc/backend/user/dto/SignupRequest.java b/backend/src/main/java/org/sejongisc/backend/user/dto/SignupRequest.java
new file mode 100644
index 00000000..7bd8db5b
--- /dev/null
+++ b/backend/src/main/java/org/sejongisc/backend/user/dto/SignupRequest.java
@@ -0,0 +1,30 @@
+package org.sejongisc.backend.user.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Pattern;
+import lombok.*;
+import org.sejongisc.backend.user.entity.Role;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class SignupRequest {
+
+    @NotBlank(message = "이름은 필수입니다.")
+    private String name;
+
+    private String email;
+
+    @NotBlank(message = "비밀번호는 필수입니다.")
+    private String password;
+
+    @NotNull(message = "역할은 필수입니다.")
+    private Role role;
+
+    @NotBlank(message = "전화번호는 필수입니다.")
+    @Pattern(regexp = "^[0-9]{10,11}$")
+    private String phoneNumber;
+}
diff --git a/backend/src/main/java/org/sejongisc/backend/user/dto/SignupResponse.java b/backend/src/main/java/org/sejongisc/backend/user/dto/SignupResponse.java
new file mode 100644
index 00000000..ee48dbb0
--- /dev/null
+++ b/backend/src/main/java/org/sejongisc/backend/user/dto/SignupResponse.java
@@ -0,0 +1,43 @@
+package org.sejongisc.backend.user.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Getter;
+import org.sejongisc.backend.user.entity.Role;
+import org.sejongisc.backend.user.entity.User;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Getter
+public class SignupResponse {
+    private final UUID userId;
+    private final String name;
+    private final String email;
+    private final Role role;
+
+    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss", timezone = "Asia/Seoul")
+    private final LocalDateTime createdAt;
+
+    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss", timezone = "Asia/Seoul")
+    private final LocalDateTime updatedAt;
+
+    private SignupResponse(UUID userId, String name, String email, Role role, LocalDateTime createdAt, LocalDateTime updatedAt) {
+        this.userId=userId;
+        this.name=name;
+        this.email=email;
+        this.role=role;
+        this.createdAt = createdAt;
+        this.updatedAt = updatedAt;
+    }
+
+    public static SignupResponse from(User user) {
+        return new SignupResponse(
+                user.getUserId(),
+                user.getName(),
+                user.getEmail(),
+                user.getRole(),
+                user.getCreatedDate(),
+                user.getUpdatedDate()
+        );
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/org/sejongisc/backend/user/entity/AuthProvider.java b/backend/src/main/java/org/sejongisc/backend/user/entity/AuthProvider.java
new file mode 100644
index 00000000..6688e3fe
--- /dev/null
+++ b/backend/src/main/java/org/sejongisc/backend/user/entity/AuthProvider.java
@@ -0,0 +1,5 @@
+package org.sejongisc.backend.user.entity;
+
+public enum AuthProvider {
+    GOOGLE, GITHUB, KAKAO
+}
diff --git a/backend/src/main/java/org/sejongisc/backend/user/entity/UserOauthAccount.java b/backend/src/main/java/org/sejongisc/backend/user/entity/UserOauthAccount.java
new file mode 100644
index 00000000..a10ab39e
--- /dev/null
+++ b/backend/src/main/java/org/sejongisc/backend/user/entity/UserOauthAccount.java
@@ -0,0 +1,34 @@
+package org.sejongisc.backend.user.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+import org.hibernate.annotations.UuidGenerator;
+import org.sejongisc.backend.common.entity.postgres.BasePostgresEntity;
+
+import java.util.UUID;
+
+@Entity
+@Table(name = "user_oauth_account")
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class UserOauthAccount extends BasePostgresEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    @Column(name = "user_oauth_account_id", columnDefinition = "uuid")
+    private UUID userOauthAccountId;
+
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(name = "user_id", nullable = false, columnDefinition = "uuid")
+    private User user;
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    private AuthProvider provider;
+
+    @Column(name = "provider_uid", nullable = false)
+    private String providerUid;
+}
diff --git a/backend/src/test/java/org/sejongisc/backend/BackendApplicationTests.java b/backend/src/test/java/org/sejongisc/backend/BackendApplicationTests.java
new file mode 100644
index 00000000..8dadbb2d
--- /dev/null
+++ b/backend/src/test/java/org/sejongisc/backend/BackendApplicationTests.java
@@ -0,0 +1,15 @@
+package org.sejongisc.backend;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+
+@SpringBootTest
+@ActiveProfiles("test")
+class BackendApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}
diff --git a/backend/src/test/java/org/sejongisc/backend/attendance/controller/AttendanceSessionControllerTest.java b/backend/src/test/java/org/sejongisc/backend/attendance/controller/AttendanceSessionControllerTest.java
index d6a9d89c..c29c9d24 100644
--- a/backend/src/test/java/org/sejongisc/backend/attendance/controller/AttendanceSessionControllerTest.java
+++ b/backend/src/test/java/org/sejongisc/backend/attendance/controller/AttendanceSessionControllerTest.java
@@ -114,7 +114,7 @@ void createSession_fail_noPermission() throws Exception {
     }
 
     @Test
-    @DisplayName("출석 세션 생성 실패: 유혀성 검증 오류")
+    @DisplayName("출석 세션 생성 실패: 유효성 검증 오류")
     @WithMockUser(roles = "PRESIDENT")
     void createSession_fail_validation() throws Exception {
         //given