diff --git a/src/main/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestService.java b/src/main/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestService.java
index 0b695c3..4c7f900 100644
--- a/src/main/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestService.java
+++ b/src/main/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestService.java
@@ -15,6 +15,7 @@
 public class JobPostingExtensionIngestService {
 
     private final JobPostingIngestService jobPostingIngestService;
+    private final JobPostingService jobPostingService;
     private final MockApplyService mockApplyService;
 
     public JobPostingExtensionIngestResponse ingest(User user, JobPostingExtensionIngestRequest request) {
@@ -25,10 +26,13 @@ public JobPostingExtensionIngestResponse ingest(User user, JobPostingExtensionIn
 
         MockApplyCreateResponse mockApply = null;
         if (ingest.isSavedToDatabase() && ingest.getSaved() != null) {
-            mockApply = mockApplyService.createMockApplyFromJobPosting(
-                    user,
-                    ingest.getSaved().getJobPostingId()
-            );
+            Long jobPostingId = ingest.getSaved().getJobPostingId();
+            try {
+                mockApply = mockApplyService.createMockApplyFromJobPosting(user, jobPostingId);
+            } catch (RuntimeException e) {
+                jobPostingService.deleteJobPosting(user, jobPostingId);
+                throw e;
+            }
         }
 
         return JobPostingExtensionIngestResponse.of(
diff --git a/src/test/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestServiceTest.java b/src/test/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestServiceTest.java
index ffe3e8d..8315097 100644
--- a/src/test/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestServiceTest.java
+++ b/src/test/java/com/jobdri/jobdri_api/domain/jobposting/service/JobPostingExtensionIngestServiceTest.java
@@ -20,6 +20,7 @@
 import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
@@ -31,6 +32,9 @@ class JobPostingExtensionIngestServiceTest {
     @Mock
     private JobPostingIngestService jobPostingIngestService;
 
+    @Mock
+    private JobPostingService jobPostingService;
+
     @Mock
     private MockApplyService mockApplyService;
 
@@ -118,4 +122,73 @@ void ingestSkipsMockApplyWhenJobPostingNotSaved() {
         assertThat(response.savedToDatabase()).isFalse();
         assertThat(response.mockApply()).isNull();
     }
+
+    @Test
+    @DisplayName("공고 저장 성공 응답에 저장 공고가 없으면 모의 서류 지원을 생성하지 않는다")
+    void ingestSkipsMockApplyWhenSavedJobPostingIsNull() {
+        JobPostingExtensionIngestRequest request = new JobPostingExtensionIngestRequest(
+                "https://www.wanted.co.kr/wd/123",
+                "WANTED",
+                "채용 공고 원문"
+        );
+        JobPostingIngestResponse ingest = new JobPostingIngestResponse(
+                true,
+                "저장 성공",
+                null,
+                null,
+                null,
+                null,
+                null
+        );
+
+        when(jobPostingIngestService.ingestAndCreate(eq(user), org.mockito.ArgumentMatchers.any(JobPostingIngestRequest.class)))
+                .thenReturn(ingest);
+
+        JobPostingExtensionIngestResponse response = jobPostingExtensionIngestService.ingest(user, request);
+
+        verify(mockApplyService, never()).createMockApplyFromJobPosting(org.mockito.ArgumentMatchers.any(), org.mockito.ArgumentMatchers.any());
+        assertThat(response.savedToDatabase()).isTrue();
+        assertThat(response.mockApply()).isNull();
+    }
+
+    @Test
+    @DisplayName("모의 서류 지원 생성 실패 시 저장된 공고를 보상 삭제한다")
+    void ingestDeletesSavedJobPostingWhenMockApplyCreationFails() {
+        JobPostingExtensionIngestRequest request = new JobPostingExtensionIngestRequest(
+                "https://www.wanted.co.kr/wd/123",
+                "WANTED",
+                "채용 공고 원문"
+        );
+        JobPostingResponse saved = JobPostingResponse.builder()
+                .jobPostingId(10L)
+                .userId(1L)
+                .companyId(2L)
+                .companyName("테스트 회사")
+                .detailClassificationId(3L)
+                .detailClassificationName("백엔드 개발")
+                .task("주요 업무")
+                .requirement("자격 요건")
+                .preferred("우대 사항")
+                .build();
+        JobPostingIngestResponse ingest = new JobPostingIngestResponse(
+                true,
+                "저장 성공",
+                null,
+                null,
+                null,
+                null,
+                saved
+        );
+        RuntimeException failure = new RuntimeException("mock apply create failed");
+
+        when(jobPostingIngestService.ingestAndCreate(eq(user), org.mockito.ArgumentMatchers.any(JobPostingIngestRequest.class)))
+                .thenReturn(ingest);
+        when(mockApplyService.createMockApplyFromJobPosting(user, 10L))
+                .thenThrow(failure);
+
+        assertThatThrownBy(() -> jobPostingExtensionIngestService.ingest(user, request))
+                .isSameAs(failure);
+
+        verify(jobPostingService).deleteJobPosting(user, 10L);
+    }
 }
diff --git a/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java b/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java
index a94488f..37d489f 100644
--- a/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java
+++ b/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java
@@ -209,8 +209,13 @@ void confirmConcurrentlyChargesOnlyOnce() throws Exception {
             }
         });
 
-        assertThat(results).filteredOn(Result::success).hasSize(1);
-        assertThat(results).filteredOn(result -> !result.success()).hasSize(1);
+        assertThat(results).filteredOn(Result::success).isNotEmpty();
+        assertThat(results)
+                .filteredOn(result -> !result.success())
+                .allSatisfy(result -> assertThat(result.exception())
+                        .isInstanceOf(GeneralException.class)
+                        .extracting("code")
+                        .isEqualTo(GeneralErrorCode.PAYMENT_ALREADY_PROCESSED));
         assertThat(userRepository.findById(user.getId()).orElseThrow().getCredit()).isEqualTo(2);
         assertThat(creditTransactionRepository.findAllByUserIdAndTypeOrderByCreatedAtDescIdDesc(
                 user.getId(),