diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/MemberController.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/MemberController.java"
new file mode 100644
index 0000000..9e96148
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/MemberController.java"	
@@ -0,0 +1,56 @@
+package org.sopt.week_2_remind.controller;
+
+import lombok.RequiredArgsConstructor;
+import org.sopt.week_2_remind.service.MemberCreateDto;
+import org.sopt.week_2_remind.service.MemberFindDto;
+import org.sopt.week_2_remind.service.MemberService;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.bind.annotation.*;
+
+import java.net.URI;
+import java.util.List;
+
+@Transactional
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/v1/member") //어디로 요청이 들어올거냐?를 보는 것.
+public class MemberController {
+    private final MemberService memberService;
+
+    @PostMapping
+    public ResponseEntity postMember(@RequestBody MemberCreateDto memberCreate){
+        return ResponseEntity.created(URI.create(memberService.createMember(memberCreate))).build();
+        //createMember가 MemberService의 함수이다.
+    }
+
+    @GetMapping("/{memberId}")
+    public ResponseEntity<MemberFindDto> findMemberById(@PathVariable Long memberId){
+        return ResponseEntity.ok(memberService.findMemberById(memberId));
+        //findMemberById가 MemberService의 함수이다.
+    }
+
+    @DeleteMapping("/{memberId}")
+    public ResponseEntity deleteMember(@PathVariable Long memberId){
+        memberService.deleteMemberById(memberId);  //deleteMemberById가 MemberService의 함수이다.
+        return ResponseEntity.noContent().build();
+          /*
+        클라이언트에게 반환할 데이터가 없으므로, HTTP 상태 코드 204(No Content)를 함께 응답한다.
+        이는 요청이 성공적으로 처리되었지만 응답으로 반환할 데이터가 없음을 나타낸다.
+         */
+    }
+
+    //기존 세미나 코드에서 이 부분 추가
+    @GetMapping("/memberList")
+    public ResponseEntity<List<MemberFindDto>> findAllMembers() {
+        try {
+            List<MemberFindDto> members = memberService.findAllMembers();
+            return ResponseEntity.ok(members);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
+        }
+    }
+
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/TestController.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/TestController.java"
new file mode 100644
index 0000000..8729119
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/TestController.java"	
@@ -0,0 +1,26 @@
+package org.sopt.week_2_remind.controller;
+
+import org.sopt.week_2_remind.controller.dto.ApiResponse;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/*
+ * 이 컨트롤러는 /test 경로로 들어오는 GET 요청에는 "test API" 문자열을 반환하고,
+ * /test/json 경로로 들어오는 GET 요청에는 JSON 형식의 응답을 반환
+ */
+
+@RestController
+@RequestMapping("/test")
+public class TestController {
+
+     @GetMapping
+    public String test(){
+         return "test API";
+     }
+
+    @GetMapping("/json")
+    public ApiResponse testJson(){
+        return ApiResponse.create("test API with JSON");
+    }
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/dto/ApiResponse.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/dto/ApiResponse.java"
new file mode 100644
index 0000000..933fcde
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/controller/dto/ApiResponse.java"	
@@ -0,0 +1,18 @@
+package org.sopt.week_2_remind.controller.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+/*
+JSON 통신을 해야 하므로, 이 클래스를 활용하여 JSON 객체를 만드는 것이다.
+리스폰스 객체의 필드에 접근해야하기 때문에 @Getter 어노테이션이 없으면 통신이 되지 않음.
+ */
+@AllArgsConstructor //생성자 자동으로 생성해줌
+@Getter
+public class ApiResponse {
+    private String content;
+
+    public static ApiResponse create(String content){
+        return new ApiResponse(content);
+    }
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/domain/Member.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/domain/Member.java"
new file mode 100644
index 0000000..9849f26
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/domain/Member.java"	
@@ -0,0 +1,42 @@
+package org.sopt.week_2_remind.domain;
+
+import jakarta.persistence.*;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.net.PasswordAuthentication;
+
+@Entity
+@Getter
+@NoArgsConstructor
+public class Member {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    private String name;
+
+    @Enumerated(EnumType.STRING)
+    private Part part;
+    private int age;
+
+    //@Builder 애노테이션 붙임으로써 그냥 빌더패턴과 같아짐
+    @Builder
+    private Member(String name, Part part, int age){
+        this.name=name;
+        this.part=part;
+        this.age=age;
+    }
+
+    //이거와 같아진 것! 편한거 골라서 쓰면 된다.
+    public static Member create(String name, Part part, int age){
+        return Member.builder()
+                .name(name)
+                .part(part)
+                .age(age)
+                .build();
+    }
+
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/domain/Part.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/domain/Part.java"
new file mode 100644
index 0000000..9bdf7ea
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/domain/Part.java"	
@@ -0,0 +1,10 @@
+package org.sopt.week_2_remind.domain;
+
+public enum Part {
+    IOS,
+    SERVER,
+    ANDROID,
+    PLAN,
+    WEB,
+    DESIGN;
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/repository/MemberRepository.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/repository/MemberRepository.java"
new file mode 100644
index 0000000..59373ef
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/repository/MemberRepository.java"	
@@ -0,0 +1,11 @@
+package org.sopt.week_2_remind.repository;
+
+import org.sopt.week_2_remind.domain.Member;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MemberRepository extends JpaRepository<Member,Long> {
+      /*
+    JPA에서 기본적으로 delete, get 이런거 제공해줌..
+    DB에서 자체적으로 생성해주는 ID로 찾고, 지우고 이런거 하는듯
+     */
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberCreateDto.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberCreateDto.java"
new file mode 100644
index 0000000..74f812b
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberCreateDto.java"	
@@ -0,0 +1,12 @@
+package org.sopt.week_2_remind.service;
+
+import org.sopt.week_2_remind.domain.Part;
+
+/*
+- 자동으로 접근자 메서드(getter)가 생성된다.
+- 레코드는 equals(), hashCode(), toString() 메서드가 자동으로 생성
+- 레코드는 불변(immutable)하며, 한 번 생성되면 내부 상태를 변경할 수 없습니다.
+- 필드를 final로 선언하여 보장
+ */
+public record MemberCreateDto(String name, Part part, int age) {
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberFindDto.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberFindDto.java"
new file mode 100644
index 0000000..54b97ee
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberFindDto.java"	
@@ -0,0 +1,14 @@
+package org.sopt.week_2_remind.service;
+
+import org.sopt.week_2_remind.domain.Member;
+import org.sopt.week_2_remind.domain.Part;
+
+public record MemberFindDto(String name, Part part, int age) {
+    /*
+       이 메서드는 Member 객체를 인자로 받아서
+       해당 객체의 정보를 사용하여 MemberFindDto 인스턴스를 생성합
+        */
+    public static MemberFindDto of(Member member){
+        return new MemberFindDto(member.getName(), member.getPart(), member.getAge());
+    }
+}
diff --git "a/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberService.java" "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberService.java"
new file mode 100644
index 0000000..4d00b9d
--- /dev/null
+++ "b/2\354\243\274\354\260\250 \353\246\254\353\247\210\354\235\270\353\223\234 \353\260\217 \352\263\274\354\240\234/week_2_remind/src/main/java/org/sopt/week_2_remind/service/MemberService.java"	
@@ -0,0 +1,51 @@
+package org.sopt.week_2_remind.service;
+
+import jakarta.persistence.EntityNotFoundException;
+import lombok.RequiredArgsConstructor;
+import org.sopt.week_2_remind.domain.Member;
+import org.sopt.week_2_remind.repository.MemberRepository;
+import org.springframework.core.SpringVersion;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+@RequiredArgsConstructor
+public class MemberService { //Service 에는 비즈니스 로직을 구현한다.
+
+    private final MemberRepository memberRepository;
+
+    @Transactional
+    public String createMember(MemberCreateDto memberCreate){ //포스트맨에서 POST로 멤버 생성 가능
+        Member member = memberRepository.save(Member.create(memberCreate.name(), memberCreate.part(), memberCreate.age()));
+        return member.getId().toString();
+    }
+
+    public MemberFindDto findMemberById(Long memberId){ //ID를 기준으로 Member 찾기
+        Member member = memberRepository.findById(memberId).orElseThrow(
+                () -> new EntityNotFoundException("ID에 해당하는 사용자가 존재하지 않습니다."));
+        return MemberFindDto.of(member);
+    }
+
+    @Transactional
+    public void deleteMemberById(Long memberId){ //ID를 기준으로 Member 를 삭제
+        Member member = memberRepository.findById(memberId).orElseThrow(
+                ()->new EntityNotFoundException("ID에 해당하는 사용자가 존재하지 않습니다."));
+        memberRepository.delete(member);
+    }
+
+    //기존 세미나 코드에서 이 부분 추가
+    public List<MemberFindDto> findAllMembers() {
+        try {
+            return memberRepository.findAll().stream()
+                    .map(MemberFindDto::of)
+                    .collect(Collectors.toList());
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+}