diff --git a/src/main/java/com/teamEWSN/gitdeun/Application/entity/Application.java b/src/main/java/com/teamEWSN/gitdeun/Application/entity/Application.java
index 5f1eb7d..48ae467 100644
--- a/src/main/java/com/teamEWSN/gitdeun/Application/entity/Application.java
+++ b/src/main/java/com/teamEWSN/gitdeun/Application/entity/Application.java
@@ -3,6 +3,7 @@
 import com.teamEWSN.gitdeun.Recruitment.entity.Recruitment;
 import com.teamEWSN.gitdeun.Recruitment.entity.RecruitmentField;
 import com.teamEWSN.gitdeun.common.util.AuditedEntity;
+import com.teamEWSN.gitdeun.user.entity.User;
 import jakarta.persistence.*;
 import lombok.*;
 
@@ -34,13 +35,16 @@ public class Application extends AuditedEntity {
     @JoinColumn(name = "recruitment_id", nullable = false)
     private Recruitment recruitment;
 
-    /** 신청 사용자 (User.id) */
-    @Column(name = "applicant_id", nullable = false)
-    private Long applicantId;
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(
+        name = "applicant_id", nullable = false,
+        foreignKey = @ForeignKey(name = "fk_applicant_user")  // 외래키 값 명시
+    )
+    private User applicant;
 
     /** 지원 분야 (작성자의 모집 분야 중에서 선택) */
     @Enumerated(EnumType.STRING)
-    @Column(name = "applied_field", nullable = false, length = 32)
+    @Column(name = "applied_field", length = 32)
     private RecruitmentField appliedField;
 
     /** 지원 메세지 */
diff --git a/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/Recruitment.java b/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/Recruitment.java
index 4c31ff5..95a2498 100644
--- a/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/Recruitment.java
+++ b/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/Recruitment.java
@@ -1,11 +1,9 @@
 package com.teamEWSN.gitdeun.Recruitment.entity;
 
-import com.teamEWSN.gitdeun.Application.entity.Application;
-import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkillEnum;
+import com.teamEWSN.gitdeun.user.entity.User;
+import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkill;
 import jakarta.persistence.*;
 import lombok.*;
-import org.hibernate.annotations.CreationTimestamp;
-import org.hibernate.annotations.UpdateTimestamp;
 
 import java.time.LocalDateTime;
 import java.util.ArrayList;
@@ -30,19 +28,23 @@ public class Recruitment {
     @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    /** 모집자 (자동 선택, User.id) */
-    @Column(name = "Recruiter_id", nullable = false)
-    private Long RecruiterId;
+    // 모집자
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(
+        name = "recruiter_id", nullable = false,
+        foreignKey = @ForeignKey(name = "fk_recruitment_user")  // 외래키 값 명시
+    )
+    private User recruiter;
 
-    /** 모집 공고 제목 (입력 필요) */
+    // 모집 공고 제목 (입력 필요)
     @Column(nullable = false, length = 120)
     private String title;
 
-    /** 연락망: 이메일 주소 (입력 필요) */
+    // 연락망: 이메일 주소 (입력 필요)
     @Column(length = 120)
     private String contactEmail;
 
-    /** 모집일 (입력 필요) */
+    // 모집일 (입력 필요)
     @Column(name = "start_at", nullable = false)
     private LocalDateTime startAt;
 
@@ -50,61 +52,61 @@ public class Recruitment {
     @Column(name = "end_at", nullable = false)
     private LocalDateTime endAt;
 
-    /** 모집 내용 (입력 필요) */
-    @Lob
+    // 모집 내용 (입력 필요)
+    @Lob    // 해당 필드를 DB에서 대용량 저장하도록 매핑
     @Column(nullable = false)
     private String content;
 
-    /** 팀 규모(총인원) (입력 필요)*/
+    // 팀 규모(총인원) (입력 필요)
     @Column(name = "team_size_total", nullable = false)
     private Integer teamSizeTotal;
 
-    /** 남은 모집 인원(입력 필요) – 신청 시 1 감소, 철회/거절 시 1 증가(복원) */
+    // 남은 모집 인원(입력 필요) – 신청 시 1 감소, 철회/거절 시 1 증가(복원)
     @Column(name = "recruit_quota", nullable = false)
     private Integer recruitQuota;
 
-    /** 개발 언어 태그 (선택 필요) - 화면 필터/표시용 */
+    // 개발 분야 태그 (선택 필요) - BACKEND/FRONTEND/AI 등
     @ElementCollection(fetch = FetchType.LAZY)
-    @CollectionTable(name = "recruitment_language_tags", joinColumns = @JoinColumn(name = "recruitment_id"))
-    @Column(name = "language", nullable = false, length = 64)
+    @CollectionTable(name = "recruitment_field_tags", joinColumns = @JoinColumn(name = "recruitment_id"))
+    @Column(name = "field", nullable = false, length = 32)
     @Enumerated(EnumType.STRING)
     @Builder.Default
-    private Set<DeveloperSkillEnum> languageTags = new HashSet<>();
+    private Set<RecruitmentField> fieldTags = new HashSet<>();
 
-    /** 개발 분야 태그 (선택 필요) - BACKEND/FRONTEND/AI 등 */
+    // 개발 언어 태그 (선택 필요) - 화면 필터/표시용
     @ElementCollection(fetch = FetchType.LAZY)
-    @CollectionTable(name = "recruitment_field_tags", joinColumns = @JoinColumn(name = "recruitment_id"))
-    @Column(name = "field", nullable = false, length = 32)
+    @CollectionTable(name = "recruitment_language_tags", joinColumns = @JoinColumn(name = "recruitment_id"))
+    @Column(name = "language", nullable = false, length = 64)
     @Enumerated(EnumType.STRING)
     @Builder.Default
-    private Set<RecruitmentField> fieldTags = new HashSet<>();
+    private Set<DeveloperSkill> languageTags = new HashSet<>();
 
-    /** 모집 상태 (모집 예정 / 모집 중 / 모집 마감) */
+    // 모집 상태 (모집 예정 / 모집 중 / 모집 마감)
     @Enumerated(EnumType.STRING)
     @Column(nullable = false, length = 24)
     private RecruitmentStatus status;
 
-    /** 조회수 */
-    @Column(name = "view_count", nullable = false)
+    // 조회수
+    @Column(name = "views", nullable = false)
     @Builder.Default
-    private Long viewCount = 0L;
+    private int views = 0;
 
-    /** 모집 공고 이미지 (선택) */
+    // 모집 공고 이미지 (선택)
     @Builder.Default
     @OneToMany(mappedBy = "recruitment", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<RecruitmentImage> recruitmentImages = new ArrayList<>();
 
-    /** 지원 신청 리스트 (양방향 필요시 매핑) */
+    /*// 지원 신청 리스트
     @OneToMany(mappedBy = "recruitment", fetch = FetchType.LAZY)
     @Builder.Default
-    private List<Application> applications = new ArrayList<>();
+    private List<Application> applications = new ArrayList<>();*/
 
-    /** 추천 가중치용 요구 기술(언어/프레임워크/툴 등, 선택) */
+    // 추천 가중치용 요구 기술(언어/프레임워크/툴 등, 선택)
     @OneToMany(mappedBy = "recruitment", cascade = CascadeType.ALL, orphanRemoval = true)
     @Builder.Default
     private Set<RecruitmentRequiredSkill> requiredSkills = new HashSet<>();
 
 
 
-    public void increaseView() { this.viewCount++; }
+    public void increaseView() { this.views++; }
 }
diff --git a/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/RecruitmentRequiredSkill.java b/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/RecruitmentRequiredSkill.java
index 3651d12..4903203 100644
--- a/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/RecruitmentRequiredSkill.java
+++ b/src/main/java/com/teamEWSN/gitdeun/Recruitment/entity/RecruitmentRequiredSkill.java
@@ -1,6 +1,6 @@
 package com.teamEWSN.gitdeun.Recruitment.entity;
 
-import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkillEnum;
+import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkill;
 import jakarta.persistence.*;
 import lombok.*;
 
@@ -28,7 +28,7 @@ public class RecruitmentRequiredSkill {
 
     @Enumerated(EnumType.STRING)
     @Column(nullable = false, length = 64)
-    private DeveloperSkillEnum skill;
+    private DeveloperSkill skill;
 
     @Enumerated(EnumType.STRING)
     @Column(nullable = false, length = 32)
diff --git a/src/main/java/com/teamEWSN/gitdeun/userskill/controller/UserSkillController.java b/src/main/java/com/teamEWSN/gitdeun/userskill/controller/UserSkillController.java
index 2b37b0e..7a024aa 100644
--- a/src/main/java/com/teamEWSN/gitdeun/userskill/controller/UserSkillController.java
+++ b/src/main/java/com/teamEWSN/gitdeun/userskill/controller/UserSkillController.java
@@ -4,7 +4,7 @@
 import com.teamEWSN.gitdeun.userskill.dto.CategorizedSkillsResponseDto;
 import com.teamEWSN.gitdeun.userskill.dto.CategorizedSkillsWithSelectionDto;
 import com.teamEWSN.gitdeun.userskill.dto.SkillSelectionRequestDto;
-import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkillEnum;
+import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkill;
 import com.teamEWSN.gitdeun.userskill.service.UserSkillService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
@@ -28,10 +28,10 @@ public class UserSkillController {
     @GetMapping
     public ResponseEntity<CategorizedSkillsResponseDto> getAvailableInterests() {
         // Enum에서 카테고리별 displayName 값 추출
-        Map<String, List<String>> categorizedInterests = Arrays.stream(DeveloperSkillEnum.values())
+        Map<String, List<String>> categorizedInterests = Arrays.stream(DeveloperSkill.values())
             .collect(Collectors.groupingBy(
-                DeveloperSkillEnum::getCategory,
-                Collectors.mapping(DeveloperSkillEnum::getDisplayName, Collectors.toList())
+                DeveloperSkill::getCategory,
+                Collectors.mapping(DeveloperSkill::getDisplayName, Collectors.toList())
             ));
         return ResponseEntity.ok(new CategorizedSkillsResponseDto(categorizedInterests));
     }
diff --git a/src/main/java/com/teamEWSN/gitdeun/userskill/entity/DeveloperSkillEnum.java b/src/main/java/com/teamEWSN/gitdeun/userskill/entity/DeveloperSkill.java
similarity index 97%
rename from src/main/java/com/teamEWSN/gitdeun/userskill/entity/DeveloperSkillEnum.java
rename to src/main/java/com/teamEWSN/gitdeun/userskill/entity/DeveloperSkill.java
index 90dca9d..d7e585d 100644
--- a/src/main/java/com/teamEWSN/gitdeun/userskill/entity/DeveloperSkillEnum.java
+++ b/src/main/java/com/teamEWSN/gitdeun/userskill/entity/DeveloperSkill.java
@@ -5,7 +5,7 @@
 
 @Getter
 @AllArgsConstructor
-public enum DeveloperSkillEnum {
+public enum DeveloperSkill {
     // 프로그래밍 언어
     JAVASCRIPT("JavaScript", "LANGUAGE"),
     TYPESCRIPT("TypeScript", "LANGUAGE"),
diff --git a/src/main/java/com/teamEWSN/gitdeun/userskill/service/UserSkillService.java b/src/main/java/com/teamEWSN/gitdeun/userskill/service/UserSkillService.java
index b0ea386..73d0fdc 100644
--- a/src/main/java/com/teamEWSN/gitdeun/userskill/service/UserSkillService.java
+++ b/src/main/java/com/teamEWSN/gitdeun/userskill/service/UserSkillService.java
@@ -6,7 +6,7 @@
 import com.teamEWSN.gitdeun.user.repository.UserRepository;
 import com.teamEWSN.gitdeun.userskill.dto.CategorizedSkillsWithSelectionDto;
 import com.teamEWSN.gitdeun.userskill.dto.DeveloperSkillDto;
-import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkillEnum;
+import com.teamEWSN.gitdeun.userskill.entity.DeveloperSkill;
 import com.teamEWSN.gitdeun.userskill.entity.UserSkill;
 import com.teamEWSN.gitdeun.userskill.repository.UserSkillRepository;
 import lombok.RequiredArgsConstructor;
@@ -47,9 +47,9 @@ public CategorizedSkillsWithSelectionDto getUserSkillsWithSelection(Long userId)
 
         // 카테고리별로 모든 기술을 분류하고 선택 여부 표시
         Map<String, List<DeveloperSkillDto>> categorizedSkills =
-            Arrays.stream(DeveloperSkillEnum.values())
+            Arrays.stream(DeveloperSkill.values())
                 .collect(Collectors.groupingBy(
-                    DeveloperSkillEnum::getCategory,
+                    DeveloperSkill::getCategory,
                     LinkedHashMap::new,  // 순서 보장
                     Collectors.mapping(
                         skillEnum -> new DeveloperSkillDto(
@@ -114,8 +114,8 @@ private void validateSkillSelection(List<String> selectedSkills) {
         }
 
         // 유효한 기술인지 검증 (Set으로 변환하여 검색 성능 향상)
-        Set<String> validSkills = Arrays.stream(DeveloperSkillEnum.values())
-            .map(DeveloperSkillEnum::getDisplayName)
+        Set<String> validSkills = Arrays.stream(DeveloperSkill.values())
+            .map(DeveloperSkill::getDisplayName)
             .collect(Collectors.toSet());
 
         // 유효하지 않은 기술 리스트 확인