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Paytm Mobile Banking

Paytm

Managed the complete mobile application lifecycle for Paytm's UK operations, including payment processing, account management, and financial services integration. Led a global team of engineers while maintaining hands-on involvement in architecture decisions and code reviews.

Role

Mobile Engineering Manager

Duration

2021 - 2024

Team

Global team of 10 mobile engineers

Platforms

Android, iOS

UK-only app (discontinued)
Paytm Mobile Banking

Tech Stack

AndroidKotlinMVVMFirebase

Key Challenges

  • Scaling the app to handle rapid user growth while maintaining performance
  • Coordinating releases across multiple time zones with distributed team
  • Implementing real-time payment status updates without draining battery

What I Built

  • Implemented modular architecture allowing independent feature development and testing
  • Established CI/CD pipelines with automated testing gates and staged rollouts
  • Built efficient WebSocket connection management with intelligent reconnection strategies

Results & Impact

Maintained 99.9% uptime serving 500K+ active users

Reduced deployment cycle time by 40% through CI/CD automation

Achieved 4.5+ star rating on app stores