Kulwinderjeet Singh

I am a Senior Mobile App Developer with 7+ years of professional experience designing, developing, and maintaining production-ready Android and cross-platform mobile applications using Kotlin and Flutter. I have worked with IT services companies and product-based teams, delivering scalable, high-performance mobile solutions published on the Google Play Store.

I specialize in Android app development, Flutter cross-platform development, mobile architecture, state management, Firebase integration, REST APIs, and performance optimization. My experience reflects actual professional employment, not coursework or personal projects.

Techtile — May 2024 – Present

• Leading development of 5+ production-level mobile applications using Kotlin and Flutter
• Architecting scalable Flutter applications using Bloc and Provider for state management
• Improved application performance by 35% through widget optimization and reduced rebuilds
• Integrated Firebase Firestore, Authentication, and Cloud Messaging
• Collaborated closely with UI/UX designers and backend teams

Live Project: 

TNT - https://play.google.com/store/apps/details?id=com.elektroeu.tnt&hl=en_IN

ReelsPark - https://play.google.com/store/apps/details?id=com.fenomio.reelspark&hl=en

Vinimay — August 2019 – May 2024

• Led development of the Vinimay Android application for real-time communication
• Improved app performance by 30% through efficient database and code optimization
• Worked with cross-functional teams to enhance engagement and application stability

Live Project: DecoristAi - https://play.google.com/store/apps/details?id=com.fenomio.decoristai&hl=en_IN

Thirty Four Soft Systems Pvt. Ltd — September 2018 – August 2019

• Developed multiple production apps including Pizza Mania and MaestroOK
• Implemented order management, delivery tracking, and payment gateway integrations
• Built and maintained REST API integrations for seamless in-app transactions

Live Projects: 

Maestro Ok - https://play.google.com/store/apps/details?id=com.maestrook.partner&hl=en_IN,

Foodie Store App - https://play.google.com/store/apps/details?id=com.foodiestore.storeordermanagement&hl=en_IN

Exelar Technologies — August 2017 – August 2018

• Designed and launched Android applications for small business operations
• Contributed to Fresh Clean Now and Fresh Clean Pro apps for service bookings

Live Projects: FastCrew Pro -https://play.google.com/store/apps/details?id=com.app.fastcrewpro, FastCrew - https://play.google.com/store/apps/details?id=com.app.fastcrew

Weavebytes Infotech Pvt. Ltd — November 2016 – May 2017

• Assisted senior developers in UI/UX development, debugging, and testing
• Gained hands-on experience in Android fundamentals and app optimization

Live Projects: MindSwell – Growth Journal - https://play.google.com/store/apps/details?id=com.techtile.mindswell&hl=en_IN

My ProBook - https://play.google.com/store/apps/details?id=app.pinbizpro.com&hl=en_IN

• Android App Development (Kotlin, Java)
• Flutter Cross-Platform App Development
• Firebase Integration (Auth, Firestore, FCM)
• REST API Integration (Retrofit)
• State Management (Bloc, Provider)
• SQLite, Room Database
• CI/CD with GitHub Actions
• Google Play Store Deployment

Bachelor’s Degree in Information Technology

Punjab Technical University — 2016