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Papan Manna

Mobile application developer with 6+ years of experience building scalable, high performance mobile applications. I specialize in Android(Java/Kotlin) and have hands-on experience working with React Native and React.js on hybrid applications.

I enjoy solving complex technical problems, exploring new technologies, and continuously improving my skill set. Currently expanding my expertise in React Native, while staying deeply rooted in Android best practices and clean architecture.

Always curious, always learning, and motivated by building reliable products that make a real impact.

  • Role

    Senior solana & Software Engineer

  • Years of Experience

    5.6 years

Skillsets

  • Realmdb
  • Xcode
  • TypeScript
  • Symphony
  • Redis
  • React Native
  • ORM
  • MVVM
  • Coroutines
  • CI/CD
  • Blockchain
  • Android
  • SQLite
  • Java
  • PHP
  • Next.js
  • MySQL
  • Kotlin
  • JavaScript
  • gRPC
  • Git
  • Firebase
  • Docker
  • Django
  • Cosmos sdk
  • Android Studio

Professional Summary

5.6Years
  • Jan, 2023 - Present3 yr 3 months

    Senior Software Engineer

    BookMyForex
  • May, 2021 - Dec, 20221 yr 7 months

    Mobile Engineer II

    ST Labs
  • Jul, 2018 - May, 20212 yr 10 months

    Software Engineer

    Geotech Infoservices

Work History

5.6Years

Senior Software Engineer

BookMyForex
Jan, 2023 - Present3 yr 3 months
    Led end-to-end development and maintenance of the BookMyForex Android application supporting 100K+ active users with high performance and reliability. Delivered core product features using MVVM architecture, Kotlin Coroutines, and dependency injection, improving development velocity and maintainability. Reduced ANRs and crash rates by ~30% through performance tuning, refactoring, and improved memory and lifecycle management. Integrated Firebase services including Push Notifications, Crashlytics, Dynamic Links, Remote Config, and In-App Messaging to improve user engagement and issue tracking. Strengthened application security through encrypted storage and secure data handling practices. Migrated critical native flows to Next.js embedded via secure WebView, reducing development effort for shared web features. Designed and implemented a native-to-web bridge SDK enabling reliable communication between mobile and web layers. Led adoption of React Native, revamping ~30% of screens and accelerating cross-platform feature rollout. Optimized payment and forex transaction workflows, significantly improving transaction success rates. Mentored developers, reviewed architecture decisions, and ensured long-term platform scalability.

Mobile Engineer II

ST Labs
May, 2021 - Dec, 20221 yr 7 months
    Developed decentralized sports betting Android application on Solana blockchain. Implemented MVVM Clean Architecture with dependency injection for scalable feature development. Integrated gRPC-based blockchain communication for real-time updates. Connected third-party live sports feeds for real-time match data.

Software Engineer

Geotech Infoservices
Jul, 2018 - May, 20212 yr 10 months
    Worked across Android, and backend systems delivering multiple mobile solutions across domains. Built fantasy sports applications with team creation, payment integrations, and performance optimization. Implemented secure storage, obfuscation, and local data encryption practices. Developed real-time tracking and geofencing applications using Kotlin and RxJava. Built offline-first mobile solutions with RealmDB and network sync mechanisms. Contributed to backend modules using PHP, Symphony, and ORM frameworks.

Major Projects

1Projects

DeliverFX

    Built delivery executive application using Next.js and integrated native SDK bridge for device feature access.

Education

  • Bachelor Of Technology, Computer Science and Engineering

    Meghnad Saha Institute Of Technology (2018)