QA/Testing Engineer — Delivery App (Vendor, Admin, Customer, Delivery & GraphQL APIs)
Yerbahub | Remote | Contract / Full-time
About the Project
We're building a delivery app ecosystem with a React Native mobile app for customers, a React Native mobile app for delivery partners, a vendor-facing React Native mobile app, a React/Next.js admin web dashboard, and a Node.js backend with GraphQL APIs. We need an experienced QA engineer to thoroughly test our complete delivery flow end-to-end.
What You'll Test (Complete Delivery Setup)
Vendor Mobile App (React Native)
- Registration/onboarding, profile & document verification, menu management, item availability toggle, pricing updates, order receiving & acceptance, preparation time settings, order status updates (preparing/ready), earnings & payout tracking, notifications for new orders, promo & discount management
Admin Web Dashboard (React/Next.js)
- User management (customers, vendors, delivery partners), order monitoring & override, commission & payout management, analytics & reporting, dispute resolution, content management, system configuration, access control & roles
Customer Mobile App & Web (React Native / React/Next.js)
- Registration/login (social, email, phone), restaurant/vendor browsing & search, menu viewing with filters, cart management, checkout flow, multiple payment methods (COD, card, wallet), order placement & confirmation, real-time order tracking, push notifications & SMS, order history & reorder, ratings & reviews, refunds & customer support chat
Delivery Partner Mobile App (React Native)
- Driver onboarding & KYC verification, document upload & approval, online/offline toggle, order request & acceptance, pickup confirmation with code/QR, route navigation & GPS tracking, delivery confirmation with proof (photo, signature, OTP), earnings dashboard & daily/weekly payouts, ratings from customers, notification preferences
GraphQL APIs (Node.js)
- Query validation for all data fetching operations, mutation testing for create/update/delete actions, subscription testing for real-time updates (order status, location, notifications), authentication & authorization (JWT, role-based access), error handling & edge cases, rate limiting & throttling, input validation & sanitization, file upload operations (documents, proof images), webhook integrations (payments, notifications), performance under concurrent requests, schema consistency & backward compatibility
Critical End-to-End Flows to Validate
- Customer places order → Vendor receives & accepts → Preparation → Ready for pickup → Delivery partner assigned & accepts → Pickup with verification → Live GPS tracking → Delivery with proof → Payment settlement → Rating & review
- Vendor goes offline mid-order, customer cancels after vendor accepts, delivery partner cancels mid-trip, failed payment with retry, out-of-delivery-zone handling, GPS signal loss or app backgrounded, multiple orders batching for delivery partner, refund & dispute flow
Device & Tool Requirements — You Must Have
Required Hardware
- iPhone 12 or newer with iOS 16+ (for customer app testing)
- Android phone with Android 11+ (for vendor app testing)
- Second Android phone with Android 11+ (for delivery partner app testing — preferred to simulate simultaneous interactions)
- Laptop (Mac or Windows) capable running emulators, browser DevTools, and screen recording
Required Testing Tools
- Postman, Insomnia, or Altair for GraphQL API testing
- Browser DevTools for web dashboard debugging and network inspection
- Screen recording capability for bug evidence
- Charles Proxy or Proxyman for intercepting mobile app GraphQL traffic
Must-Have Skills
- 2+ years testing mobile apps on iOS and Android with focus on real-time location-based platforms
- Proven experience testing delivery, logistics, food delivery, or multi-sided marketplace apps
- Strong GraphQL API testing skills including queries, mutations, subscriptions, and error responses
- Experience testing payment flows including success, failure, refund, timeout, and webhook scenarios
- Familiarity with push notifications, GPS tracking, background app behavior, and real-time data sync
- Ability to test multi-app interactions simultaneously (customer, vendor, delivery partner)
- Detailed bug reporting with device model, OS version, app version, GraphQL operation names, steps, expected vs actual behavior, screenshots, screen recordings, and network logs
Nice-to-Have
- GraphQL automation experience with tools like Apollo Client testing, Postman collections, or custom scripts
- Appium, Detox, Maestro, or Cypress automation experience
- Firebase Crashlytics or Sentry for reading crash logs
- Google Maps or Mapbox SDK behavior knowledge
- Load and performance testing for GraphQL APIs under concurrent order scenarios
- Payment gateway webhook experience (Stripe, Razorpay, PayPal, etc.)
Deliverables We Expect
- Test plans covering vendor flow, admin dashboard, customer mobile and web, delivery partner flow, and GraphQL API suite
- Executed test cases with pass/fail evidence including screenshots and recordings
- Critical bug reports within 24 hours of discovery
- GraphQL-specific bug reports including operation name, variables, response errors, and status codes
- Final QA sign-off checklist before each release
- Regression summary after bug fixes
Application Requirements — Please Include
1. Your device inventory — What iPhone and Android models do you have?
2. Relevant experience — Have you tested delivery, food, logistics, or multi-vendor marketplace apps before? Name the apps if possible.
3. GraphQL experience — Describe your approach to testing GraphQL queries, mutations, and subscriptions.
4. Sample bug report — Share one detailed bug report you've written (anonymized is fine).
5. Simultaneous testing setup — Explain how you'd test the complete handoff flow between customer, vendor, and delivery partner using your devices.
Pay: ₹20,000.00 - ₹30,000.00 per month
Benefits:
- Flexible schedule
- Paid time off
- Work from home
Work Location: Remote
