diff --git a/backend/tests/test_jira_sync_job.py b/backend/tests/test_jira_sync_job.py
new file mode 100644
index 0000000..e9c4aff
--- /dev/null
+++ b/backend/tests/test_jira_sync_job.py
@@ -0,0 +1,69 @@
+"""Jira sync scheduled job tests (FASE-1.7)."""
+
+from unittest.mock import patch
+from uuid import uuid4
+
+import pytest
+
+from app.jobs.jira_sync_job import sync_all_jira_links
+from app.models.jira_link import JiraLink, JiraLinkEntityType
+from tests.conftest import TestingSessionLocal
+
+
+@pytest.fixture(autouse=True)
+def _job_uses_test_db(monkeypatch):
+    """Route the job's SessionLocal to the in-memory SQLite test engine."""
+    import app.database as database_module
+
+    monkeypatch.setattr(database_module, "_SessionLocal", TestingSessionLocal)
+    monkeypatch.setattr(
+        "app.jobs.jira_sync_job.SessionLocal",
+        TestingSessionLocal,
+    )
+
+
+def test_sync_all_jira_links_skips_when_disabled(monkeypatch, db):
+    monkeypatch.setattr("app.jobs.jira_sync_job.settings.JIRA_ENABLED", False)
+    with patch("app.jobs.jira_sync_job.jira_service.sync_jira_to_aegis") as mock_sync:
+        sync_all_jira_links()
+        mock_sync.assert_not_called()
+
+
+@patch("app.jobs.jira_sync_job.jira_service.sync_jira_to_aegis")
+def test_sync_all_jira_links_updates_links(mock_sync, monkeypatch, db, admin_user):
+    monkeypatch.setattr("app.jobs.jira_sync_job.settings.JIRA_ENABLED", True)
+
+    link = JiraLink(
+        entity_type=JiraLinkEntityType.test,
+        entity_id=uuid4(),
+        jira_issue_key="SEC-1",
+        created_by=admin_user.id,
+    )
+    db.add(link)
+    db.commit()
+
+    sync_all_jira_links()
+
+    assert mock_sync.call_count == 1
+
+
+@patch("app.jobs.jira_sync_job.jira_service.sync_jira_to_aegis")
+def test_sync_all_jira_links_continues_on_single_failure(mock_sync, monkeypatch, db, admin_user):
+    monkeypatch.setattr("app.jobs.jira_sync_job.settings.JIRA_ENABLED", True)
+
+    for key in ("SEC-A", "SEC-B"):
+        db.add(
+            JiraLink(
+                entity_type=JiraLinkEntityType.test,
+                entity_id=uuid4(),
+                jira_issue_key=key,
+                created_by=admin_user.id,
+            ),
+        )
+    db.commit()
+
+    mock_sync.side_effect = [Exception("issue deleted"), None]
+
+    sync_all_jira_links()
+
+    assert mock_sync.call_count == 2