diff --git a/repositories/hubspot_deals/deal_database_postgres_gateway.py b/repositories/hubspot_deals/deal_database_postgres_gateway.py
index 29c1868ec..bfd917781 100644
--- a/repositories/hubspot_deals/deal_database_postgres_gateway.py
+++ b/repositories/hubspot_deals/deal_database_postgres_gateway.py
@@ -26,7 +26,8 @@ class DealDatabasePostgresGateway:
         self._session.commit()
 
     def job_no_for_deal(self, deal_id: str) -> Optional[str]:
-        raise NotImplementedError
+        deal = self._find_deal(deal_id)
+        return deal.job_no if deal is not None else None
 
     def _find_deal(self, deal_id: str) -> Optional[HubspotDealData]:
         statement = select(HubspotDealData).where(HubspotDealData.deal_id == deal_id)