diff --git a/src/transcription/models.py b/src/transcription/models.py
index 5b8d58e..f35940d 100644
--- a/src/transcription/models.py
+++ b/src/transcription/models.py
@@ -7,7 +7,6 @@ Three models capture the MVP lifecycle:
 from datetime import UTC
 from datetime import datetime
 from enum import StrEnum
-from pathlib import Path
 from typing import Optional
 from uuid import UUID
 from uuid import uuid4
@@ -29,7 +28,7 @@ class Document(SQLModel, table=True):
 
     id: UUID = Field(default_factory=uuid4, primary_key=True)
     filename: str
-    file_path: Path
+    file_path: str
     uploaded_at: datetime = Field(
         default_factory=lambda: datetime.now(UTC),
     )
diff --git a/tests/services/test_job_service.py b/tests/services/test_job_service.py
index 5a3274b..ae442fc 100644
--- a/tests/services/test_job_service.py
+++ b/tests/services/test_job_service.py
@@ -2,20 +2,13 @@ from uuid import uuid4
 
 import pytest
 
-from transcription.config import Settings
-from transcription.db.runtime import get_session_factory
+from transcription.models import Document
 from transcription.models import Job
+from transcription.services.documents import DocumentService
 from transcription.services.jobs import JobService
 from transcription.services.jobs import JobStatus
 
 
-@pytest.fixture
-def job_service(default_settings: Settings) -> JobService:
-    """Provide a JobService instance for testing."""
-    session_factory = get_session_factory(settings=default_settings)
-    return JobService(session_factory=session_factory)
-
-
 class TestJobService:
     class TestBasicCRUD:
         @pytest.mark.asyncio
@@ -31,6 +24,23 @@ class TestJobService:
                 for _ in range(10):
                     await job_service.create_job(job=fake_job_factory(), session=session)
 
+        @pytest.mark.asyncio
+        async def test_backpropagation(self, job_service: JobService, document_service: DocumentService):
+            """Test that creating a job backpropagates to the related document."""
+            doc_id = uuid4()
+            document = Document(
+                id=doc_id,
+                filename="test.txt",
+                file_path="/path/to/test.txt",
+            )
+            await document_service.create_document(document=document)
+            job = Job(document_id=doc_id)
+            await job_service.create_job(job=job)
+
+            read_job = await job_service.read_job(job_id=job.id)
+            assert isinstance(read_job.document, Document)
+            assert read_job.document.id == document.id
+
         @pytest.mark.asyncio
         async def test_reading_job(self, job_service: JobService):
             """Test reading a job."""
@@ -67,12 +77,12 @@ class TestJobService:
         @pytest.mark.asyncio
         async def test_list_jobs(self, job_service: JobService):
             """Test listing jobs."""
+            n = 5
+            for _ in range(n):
+                await job_service.create_job(job=Job(document_id=uuid4()))
+            jobs = await job_service.list_jobs()
+            assert len(jobs) == n
 
         @pytest.mark.asyncio
         async def test_mark_job_status(self, job_service: JobService):
             """Test marking a job with a new status."""
-
-    class TestMultipleOperations:
-        @pytest.mark.asyncio
-        async def test_multiple_operations(self, job_service: JobService):
-            """Test multiple operations on jobs."""