diff --git a/frontend/src/app/core/services/worker.service.ts b/frontend/src/app/core/services/worker.service.ts
index b4d4ac7883..ba177217f6 100644
--- a/frontend/src/app/core/services/worker.service.ts
+++ b/frontend/src/app/core/services/worker.service.ts
@@ -32,6 +32,11 @@ interface TotalStaffRecordsResponse {
   total: number;
 }
 
+export interface NewWorkerMandatoryInfo {
+  nameOrId: string;
+  contract: Contracts;
+}
+
 @Injectable({
   providedIn: 'root',
 })
@@ -45,7 +50,7 @@ export class WorkerService {
   public worker$ = this._worker$.asObservable();
   public getRoute$: BehaviorSubject<any> = new BehaviorSubject<any>(null);
   public createStaffResponse = null;
-  private _newWorkerMandatoryInfo: { nameOrId: string; contract: Contracts } = null;
+  private _newWorkerMandatoryInfo: NewWorkerMandatoryInfo = null;
 
   private _workers$: BehaviorSubject<Worker[]> = new BehaviorSubject<Worker[]>(null);
   public workers$: Observable<Worker[]> = this._workers$.asObservable();
@@ -297,7 +302,7 @@ export class WorkerService {
     this._newWorkerMandatoryInfo = { nameOrId, contract };
   }
 
-  public get newWorkerMandatoryInfo(): { nameOrId: string; contract: Contracts } {
+  public get newWorkerMandatoryInfo(): NewWorkerMandatoryInfo {
     return this._newWorkerMandatoryInfo;
   }
 
diff --git a/frontend/src/app/features/workers/main-job-role/main-job-role.component.ts b/frontend/src/app/features/workers/main-job-role/main-job-role.component.ts
index 68571868c5..8345f5fcfb 100644
--- a/frontend/src/app/features/workers/main-job-role/main-job-role.component.ts
+++ b/frontend/src/app/features/workers/main-job-role/main-job-role.component.ts
@@ -5,7 +5,7 @@ import { UntypedFormBuilder, Validators } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 import { BackLinkService } from '@core/services/backLink.service';
 import { ErrorSummaryService } from '@core/services/error-summary.service';
-import { WorkerService } from '@core/services/worker.service';
+import { NewWorkerMandatoryInfo, WorkerService } from '@core/services/worker.service';
 import { EstablishmentService } from '@core/services/establishment.service';
 import { Contracts } from '@core/model/contracts.enum';
 import { AlertService } from '@core/services/alert.service';
@@ -24,10 +24,7 @@ export class MainJobRoleComponent extends QuestionComponent implements OnInit, O
   public summaryContinue: boolean;
   public callToActionLabel: string = 'Save and return';
   private isAddingNewWorker: boolean;
-  private newWorkerMandantoryInfo: {
-    nameOrId: string;
-    contract: Contracts;
-  };
+  private newWorkerMandantoryInfo: NewWorkerMandatoryInfo;
 
   private summaryText = {
     'Care providing roles': 'care worker, community support, support worker',