BCSDLab · taejinn · Sep 3, 2026 · Sep 3, 2026
diff --git a/...oreatech/koin/domain/team/recruitment/repository/TeamRecruitmentChatMemberRepository.java b/...oreatech/koin/domain/team/recruitment/repository/TeamRecruitmentChatMemberRepository.java
@@ -1,8 +1,11 @@
 package in.koreatech.koin.domain.team.recruitment.repository;
 
 import in.koreatech.koin.domain.team.recruitment.model.TeamRecruitmentChatMember;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.Repository;
+import org.springframework.data.repository.query.Param;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 
@@ -16,5 +19,24 @@ public interface TeamRecruitmentChatMemberRepository extends Repository<TeamRecr
 
     List<TeamRecruitmentChatMember> findAllByChatRoom_Id(Integer chatRoomId);
 
+    @Query("""
+        SELECT member
+        FROM TeamRecruitmentChatMember member
+        JOIN FETCH member.chatRoom chatRoom
+        JOIN FETCH chatRoom.recruitment
+        WHERE member.user.id = :userId
+        """)
+    List<TeamRecruitmentChatMember> findAllByUserIdWithChatRoomAndRecruitment(@Param("userId") Integer userId);
+
+    @Query("""
+        SELECT member
+        FROM TeamRecruitmentChatMember member
+        JOIN FETCH member.user
+        WHERE member.chatRoom.id IN :chatRoomIds
+        """)
+    List<TeamRecruitmentChatMember> findAllWithUsersByChatRoomIds(
+        @Param("chatRoomIds") Collection<Integer> chatRoomIds
+    );
+
     long countByChatRoom_Id(Integer chatRoomId);
 }
diff --git a/...reatech/koin/domain/team/recruitment/repository/TeamRecruitmentChatMessageRepository.java b/...reatech/koin/domain/team/recruitment/repository/TeamRecruitmentChatMessageRepository.java
@@ -2,8 +2,11 @@
 
 import in.koreatech.koin.domain.team.recruitment.model.TeamRecruitmentChatMessage;
 import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.Repository;
+import org.springframework.data.repository.query.Param;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 
@@ -13,6 +16,31 @@ public interface TeamRecruitmentChatMessageRepository extends Repository<TeamRec
 
     TeamRecruitmentChatMessage save(TeamRecruitmentChatMessage message);
 
+    @Query("""
+        SELECT message
+        FROM TeamRecruitmentChatMessage message
+        WHERE message.chatRoom.id IN :chatRoomIds
+        AND message.id = (
+            SELECT MAX(latest.id)
+            FROM TeamRecruitmentChatMessage latest
+            WHERE latest.chatRoom.id = message.chatRoom.id
+        )
+        """)
+    List<TeamRecruitmentChatMessage> findLatestByChatRoomIds(
+        @Param("chatRoomIds") Collection<Integer> chatRoomIds
+    );
+
+    @Query("""
+        SELECT message.chatRoom.id AS chatRoomId, COUNT(message.id) AS unreadMessageCount
+        FROM TeamRecruitmentChatMessage message
+        JOIN message.chatRoom.members member
+        WHERE member.user.id = :userId
+        AND message.sender.id <> :userId
+        AND (member.lastReadMessageId IS NULL OR message.id > member.lastReadMessageId)
+        GROUP BY message.chatRoom.id
+        """)
+    List<ChatRoomUnreadCount> countUnreadMessagesByUserId(@Param("userId") Integer userId);
+
     /** Returns the initial page in ascending message-id order. */
     List<TeamRecruitmentChatMessage> findAllByChatRoom_IdOrderByIdAsc(
         Integer chatRoomId,
@@ -32,4 +60,11 @@ List<TeamRecruitmentChatMessage> findAllByChatRoom_IdAndIdLessThanOrderByIdDesc(
         Integer beforeMessageId,
         Pageable pageable
     );
+
+    interface ChatRoomUnreadCount {
+
+        Integer getChatRoomId();
+
+        long getUnreadMessageCount();
+    }
 }
diff --git a/...main/java/in/koreatech/koin/domain/teamrecruitment/controller/TeamRecruitmentChatApi.java b/...main/java/in/koreatech/koin/domain/teamrecruitment/controller/TeamRecruitmentChatApi.java
@@ -26,6 +26,7 @@
 import in.koreatech.koin.domain.teamrecruitment.dto.ChatRoomResponse;
 import in.koreatech.koin.domain.teamrecruitment.dto.CreateChatMessageRequest;
 import in.koreatech.koin.domain.teamrecruitment.dto.DirectChatRoomResponse;
+import in.koreatech.koin.domain.teamrecruitment.dto.TeamRecruitmentChatRoomListItemResponse;
 import in.koreatech.koin.global.code.ApiResponseCodes;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -35,6 +36,18 @@
 @Tag(name = "(Normal) Team Recruitment Chat: 팀원 모집 채팅", description = "팀원 모집 채팅 API")
 public interface TeamRecruitmentChatApi {
 
+    @ApiResponseCodes({
+        OK,
+        UNAUTHORIZED_USER,
+        FORBIDDEN_USER_TYPE,
+    })
+    @Operation(
+        summary = "내 팀원 모집 채팅방 목록 조회",
+        description = "현재 사용자가 멤버인 TEAM/DIRECT 채팅방을 최근 메시지순으로 반환합니다. "
+            + "메시지가 없는 방과 READ_ONLY 방도 포함합니다."
+    )
+    ResponseEntity<List<TeamRecruitmentChatRoomListItemResponse>> getChatRooms(Integer userId);
+
     @ApiResponseCodes({
         OK,
         TEAM_RECRUITMENT_CHAT_NOT_FOUND,

diff --git a/...va/in/koreatech/koin/domain/teamrecruitment/controller/TeamRecruitmentChatController.java b/...va/in/koreatech/koin/domain/teamrecruitment/controller/TeamRecruitmentChatController.java
@@ -17,6 +17,7 @@
 import in.koreatech.koin.domain.teamrecruitment.dto.CreateChatMessageRequest;
 import in.koreatech.koin.domain.teamrecruitment.dto.DirectChatRoomCreationResult;
 import in.koreatech.koin.domain.teamrecruitment.dto.DirectChatRoomResponse;
+import in.koreatech.koin.domain.teamrecruitment.dto.TeamRecruitmentChatRoomListItemResponse;
 import in.koreatech.koin.domain.teamrecruitment.service.TeamRecruitmentChatService;
 import in.koreatech.koin.global.auth.Auth;
 
@@ -26,12 +27,19 @@
 
 @RestController
 @RequiredArgsConstructor
-@RequestMapping("/chatroom/team-recruitment/{recruitmentId}")
+@RequestMapping("/chatroom/team-recruitment")
 public class TeamRecruitmentChatController implements TeamRecruitmentChatApi {
 
     private final TeamRecruitmentChatService chatService;
 
-    @GetMapping("/{chatRoomId}")
+    @GetMapping
+    public ResponseEntity<List<TeamRecruitmentChatRoomListItemResponse>> getChatRooms(
+            @Auth(permit = {STUDENT}) Integer userId
+    ) {
+        return ResponseEntity.ok(chatService.getChatRooms(userId));
+    }
+
+    @GetMapping("/{recruitmentId}/{chatRoomId}")
     public ResponseEntity<ChatRoomResponse> getChatRoom(
             @Auth(permit = {STUDENT}) Integer userId,
             @PathVariable Integer recruitmentId,
@@ -40,7 +48,7 @@ public ResponseEntity<ChatRoomResponse> getChatRoom(
         return ResponseEntity.ok(chatService.getChatRoom(userId, recruitmentId, chatRoomId));
     }
 
-    @PostMapping("/applications/{applicationId}/direct")
+    @PostMapping("/{recruitmentId}/applications/{applicationId}/direct")
     public ResponseEntity<DirectChatRoomResponse> getOrCreateDirectChatRoom(
             @Auth(permit = {STUDENT}) Integer userId,
             @PathVariable Integer recruitmentId,
@@ -51,7 +59,7 @@ public ResponseEntity<DirectChatRoomResponse> getOrCreateDirectChatRoom(
         return ResponseEntity.status(status).body(result.response());
     }
 
-    @GetMapping("/{chatRoomId}/messages")
+    @GetMapping("/{recruitmentId}/{chatRoomId}/messages")
     public ResponseEntity<List<ChatMessageResponse>> getMessages(
             @Auth(permit = {STUDENT}) Integer userId,
             @PathVariable Integer recruitmentId,
@@ -63,7 +71,7 @@ public ResponseEntity<List<ChatMessageResponse>> getMessages(
         return ResponseEntity.ok(chatService.getMessages(userId, recruitmentId, chatRoomId, afterMessageId, beforeMessageId, limit));
     }
 
-    @PostMapping("/{chatRoomId}/messages")
+    @PostMapping("/{recruitmentId}/{chatRoomId}/messages")
     public ResponseEntity<ChatMessageResponse> createMessage(
             @Auth(permit = {STUDENT}) Integer userId,
             @PathVariable Integer recruitmentId,

diff --git a/...in/koreatech/koin/domain/teamrecruitment/dto/TeamRecruitmentChatRoomListItemResponse.java b/...in/koreatech/koin/domain/teamrecruitment/dto/TeamRecruitmentChatRoomListItemResponse.java
@@ -0,0 +1,84 @@
+package in.koreatech.koin.domain.teamrecruitment.dto;
+
+import static com.fasterxml.jackson.databind.PropertyNamingStrategies.SnakeCaseStrategy;
+import static io.swagger.v3.oas.annotations.media.Schema.RequiredMode.REQUIRED;
+
+import java.time.LocalDateTime;
+
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+
+import in.koreatech.koin.domain.team.recruitment.enums.TeamRecruitmentChatRoomType;
+import in.koreatech.koin.domain.team.recruitment.model.TeamRecruitmentChatMessage;
+import in.koreatech.koin.domain.team.recruitment.model.TeamRecruitmentChatRoom;
+import in.koreatech.koin.domain.user.model.User;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+@JsonNaming(SnakeCaseStrategy.class)
+public record TeamRecruitmentChatRoomListItemResponse(
+    @Schema(description = "모집글 ID", example = "17", requiredMode = REQUIRED)
+    Integer recruitmentId,
+
+    @Schema(description = "채팅방 ID", example = "31", requiredMode = REQUIRED)
+    Integer chatRoomId,
+
+    @Schema(description = "채팅방 이름. TEAM은 모집글 제목, DIRECT는 상대방 닉네임입니다.",
+        example = "AI 아이디어 공모전 팀원 모집", requiredMode = REQUIRED)
+    String roomName,
+
+    @Schema(description = "채팅방 타입", example = "TEAM", requiredMode = REQUIRED)
+    String roomType,
+
+    @Schema(description = "채팅방 상태", example = "ACTIVE", requiredMode = REQUIRED)
+    String status,
+
+    @Schema(description = "DIRECT 상대방 유저 ID. TEAM은 null입니다.", example = "22",
+        nullable = true, requiredMode = REQUIRED)
+    Integer counterpartId,
+
+    @Schema(description = "DIRECT 상대방 닉네임. TEAM은 null입니다.", example = "김철수",
+        nullable = true, requiredMode = REQUIRED)
+    String counterpartNickname,
+
+    @Schema(description = "최근 메시지 ID. 메시지가 없으면 null입니다.", example = "901",
+        nullable = true, requiredMode = REQUIRED)
+    Integer lastMessageId,
+
+    @Schema(description = "최근 메시지 내용. 메시지가 없으면 null입니다.", example = "안녕하세요!",
+        nullable = true, requiredMode = REQUIRED)
+    String lastMessageContent,
+
+    @Schema(description = "최근 메시지 전송 시각. 메시지가 없으면 null입니다.",
+        example = "2026-08-26T11:20:30.123456", nullable = true, requiredMode = REQUIRED)
+    LocalDateTime lastMessageAt,
+
+    @Schema(description = "최근 메시지의 이미지 여부. 메시지가 없으면 null입니다.", example = "false",
+        nullable = true, requiredMode = REQUIRED)
+    Boolean lastMessageIsImage,
+
+    @Schema(description = "현재 사용자가 읽지 않은 메시지 수", example = "2", requiredMode = REQUIRED)
+    int unreadMessageCount
+) {
+
+    public static TeamRecruitmentChatRoomListItemResponse of(
+        TeamRecruitmentChatRoom chatRoom,
+        User counterpart,
+        TeamRecruitmentChatMessage lastMessage,
+        int unreadMessageCount
+    ) {
+        boolean direct = chatRoom.getRoomType() == TeamRecruitmentChatRoomType.DIRECT;
+        return new TeamRecruitmentChatRoomListItemResponse(
+            chatRoom.getRecruitment().getId(),
+            chatRoom.getId(),
+            direct && counterpart != null ? counterpart.getNickname() : chatRoom.getRecruitment().getTitle(),
+            chatRoom.getRoomType().name(),
+            chatRoom.getStatus().name(),
+            direct && counterpart != null ? counterpart.getId() : null,
+            direct && counterpart != null ? counterpart.getNickname() : null,
+            lastMessage == null ? null : lastMessage.getId(),
+            lastMessage == null ? null : lastMessage.getContent(),
+            lastMessage == null ? null : lastMessage.getCreatedAt(),
+            lastMessage == null ? null : lastMessage.getIsImage(),
+            unreadMessageCount
+        );
+    }
+}
diff --git a/...ain/java/in/koreatech/koin/domain/teamrecruitment/service/TeamRecruitmentChatService.java b/...ain/java/in/koreatech/koin/domain/teamrecruitment/service/TeamRecruitmentChatService.java
@@ -5,10 +5,13 @@
 import java.time.ZoneId;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -33,6 +36,7 @@
 import in.koreatech.koin.domain.teamrecruitment.dto.CreateChatMessageRequest;
 import in.koreatech.koin.domain.teamrecruitment.dto.DirectChatRoomCreationResult;
 import in.koreatech.koin.domain.teamrecruitment.dto.DirectChatRoomResponse;
+import in.koreatech.koin.domain.teamrecruitment.dto.TeamRecruitmentChatRoomListItemResponse;
 import in.koreatech.koin.domain.user.model.User;
 import in.koreatech.koin.global.exception.CustomException;
 import lombok.RequiredArgsConstructor;
@@ -67,6 +71,64 @@ public class TeamRecruitmentChatService {
     private final ObjectMapper objectMapper;
     private final Clock clock;
 
+    public List<TeamRecruitmentChatRoomListItemResponse> getChatRooms(Integer userId) {
+        List<TeamRecruitmentChatMember> memberships =
+            memberRepository.findAllByUserIdWithChatRoomAndRecruitment(userId);
+        if (memberships.isEmpty()) {
+            return List.of();
+        }
+
+        List<TeamRecruitmentChatRoom> chatRooms = memberships.stream()
+            .map(TeamRecruitmentChatMember::getChatRoom)
+            .toList();
+        List<Integer> chatRoomIds = chatRooms.stream()
+            .map(TeamRecruitmentChatRoom::getId)
+            .toList();
+        List<Integer> directChatRoomIds = chatRooms.stream()
+            .filter(room -> room.getRoomType() == TeamRecruitmentChatRoomType.DIRECT)
+            .map(TeamRecruitmentChatRoom::getId)
+            .toList();
+
+        Map<Integer, User> counterpartsByChatRoomId = directChatRoomIds.isEmpty()
+            ? Map.of()
+            : memberRepository.findAllWithUsersByChatRoomIds(directChatRoomIds).stream()
+                .filter(member -> !member.getUser().getId().equals(userId))
+                .collect(Collectors.toMap(
+                    member -> member.getChatRoom().getId(),
+                    TeamRecruitmentChatMember::getUser,
+                    (first, ignored) -> first
+                ));
+        Map<Integer, TeamRecruitmentChatMessage> latestMessagesByChatRoomId = messageRepository
+            .findLatestByChatRoomIds(chatRoomIds).stream()
+            .collect(Collectors.toMap(
+                message -> message.getChatRoom().getId(),
+                Function.identity()
+            ));
+        Map<Integer, Long> unreadCountsByChatRoomId = messageRepository.countUnreadMessagesByUserId(userId).stream()
+            .collect(Collectors.toMap(
+                TeamRecruitmentChatMessageRepository.ChatRoomUnreadCount::getChatRoomId,
+                TeamRecruitmentChatMessageRepository.ChatRoomUnreadCount::getUnreadMessageCount
+            ));
+
+        return chatRooms.stream()
+            .map(chatRoom -> TeamRecruitmentChatRoomListItemResponse.of(
+                chatRoom,
+                counterpartsByChatRoomId.get(chatRoom.getId()),
+                latestMessagesByChatRoomId.get(chatRoom.getId()),
+                Math.toIntExact(unreadCountsByChatRoomId.getOrDefault(chatRoom.getId(), 0L))
+            ))
+            .sorted(Comparator
+                .comparing(
+                    TeamRecruitmentChatRoomListItemResponse::lastMessageAt,
+                    Comparator.nullsLast(Comparator.reverseOrder())
+                )
+                .thenComparing(
+                    TeamRecruitmentChatRoomListItemResponse::chatRoomId,
+                    Comparator.reverseOrder()
+                ))
+            .toList();
+    }
+
     public ChatRoomResponse getChatRoom(Integer userId, Integer recruitmentId, Integer chatRoomId) {
         TeamRecruitmentChatRoom chatRoom = chatRoomRepository.findById(chatRoomId)
                 .orElseThrow(() -> CustomException.of(TEAM_RECRUITMENT_CHAT_NOT_FOUND));

diff --git a/src/main/java/in/koreatech/koin/global/config/TeamRecruitmentOpenApiCustomizer.java b/src/main/java/in/koreatech/koin/global/config/TeamRecruitmentOpenApiCustomizer.java
@@ -44,6 +44,12 @@ public void customise(OpenAPI openApi) {
         );
         configureDateTime(schemas, "ApplicationCreatedResponse", "created_at", SPACE_LOCAL_DATE_TIME_PATTERN);
         configureDateTime(schemas, "RecruitmentDetail", "created_at", SPACE_LOCAL_DATE_TIME_PATTERN);
+        configureDateTime(
+            schemas,
+            "TeamRecruitmentChatRoomListItemResponse",
+            "last_message_at",
+            ISO_LOCAL_DATE_TIME_PATTERN
+        );
         configureChatMessageTimestamp(openApi, schemas);
     }