Punjab, India

Android Native, Flutter, React Native, Kotlin, CI/CD, Fastlane, Unit & Integration Testing

  • Working in Mobile Development for more than 6 years.
  • Expert in AndroidNative, Flutter, React Native, Java and iOS.
  • Language Known : C, C++, Swift, Java, JavaScript, CSS, HTML, Dart, Kotlin View More

4.7 (113)

$20 /hr

Social Presence


Android Native *
Flutter *
React Native
Kotlin *
GitHub Actions (CI/CD)
Java Script


  • PIXZ


I’m Gursewak Singh. I am a postgraduate. I did my master’s from Punjabi University Patiala in Computer Science and Application. I had worked as a team lead in Boffin Coders company. I have worked on many apps in various domains, like Grocery App, Taxi and Delivery Combined App, Doctor App, Dating App, Instagram App, Food Delivery App, Buy and Sell business apps, healthcare, social app, chat app, real estate app, eCommerce app, a dictionary app, etc.
  • Working in Mobile Development for more than 6 years
  • Expert in AndroidNative, Flutter, ReactNative, Java  and iOS
  • Language Known : C, C++, Swift, JAVA, JAVASCRIPT, CSS, HTML, Dart,  Kotlin
  • Proficient in object-oriented design, data structures, problem-solving, complexity analysis and debugging
  • Able to design the applications from the requirement and Known for writing efficient, maintainable, and reusable code that preserves privacy and security.
  • Expert in the interaction between various devices and different versions of Android/iOS
  • Android apps using Java & Kotlin
  • Rest APIs Integration
  • AWS(S3, Cognito)
  • MVP, MVVM, MVC Architectures
  • Clean Architecture
  • Maps Integration
  • In-app Purchases
  • Payment Gateway ( Stripe, Razorpay, Cashfree, etc.)
  • 3rd Party Auth (Google, Facebook, Github, etc.)
  • Firebase
  • SQLite, Room
I have spent 4 years working on
  • Flutter and Dart
  • BloC Pattern, Provider and GetX for state management
  • Firestore, Realtime Database, Remote Config, and App distribution, Push notification, Dynamic links, In-APP messaging, Crashlytics, Analytics using Firebase
  • Fastlane and GitHub Actions (CI/CD)
  • Rest APIs and gRPC
  • AWS with S3 and Cognito
  • Testing ( Unit, Widget, Integration)
  • Video Streaming (Agora, Twillo, WebRTC)
  • Web Sockets
  • Maps Integration (Google, Apple)
  • In-app Purchases
  • Payment Gateway ( Stripe, Razorpay, Cashfree etc.)
  • 3rd Party Auth (Google, Facebook, Github, Apple)
  • Wearables
  • Augmented Reality (AR) and Virtual Reality (VR)
  • Machine Learning add inside the firebase
  • iBeacon
If you have found me, you are going in the right direction. Apps built by me have received positive reviews across different platforms, and I look forward to delivering you the same. I build long-term relationships with my clients. To do that I never compromise on these things: quality, communication, and deadlines.
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