Summary
Overview
Work History
Education
Skills
Timeline
background-images

Niraj Kumar

Bengaluru

Summary

Frontend Android engineer with 13+ years of experience in Android (Java/Kotlin) and cross-platform (React Native) app development. Proven track record of leading and mentoring teams for 2+ years, driving mobile architecture, CI/CD automation, and large-scale product delivery. Delivered enterprise-grade mobile applications for fintech, gaming, and e-commerce with 25M+ users and 99.999% crash-free reliability. Skilled in Agile/Scrum, stakeholder management, and end-to-end delivery of secure, scalable, and high-performing apps.

Overview

14
14
years of professional experience

Work History

Engineering Manager

Games24x7
06.2025 - Current
  • Owned technical roadmap, architecture reviews, code reviews for My11Circle mobile apps (25M+ users) across Android, iOS, and React Native, achieving 99.999% crash-free stability.
  • Leading and mentoring a team of Android and iOS developers, driving technical vision, architecture, and mobile product roadmap.
  • Collaborating with Product, UX, QA, and Backend stakeholders to ensure seamless mobile releases.
  • Implementing coding best practices, CI/CD automation, and secure app store deployments.

Tech Lead

Games24x7
04.2021 - 06.2025
  • Architected modular systems using Kotlin and React Native, improving app launch performance by 70%.
  • Automated CI/CD pipelines (Jenkins + Git) for mobile, reducing release cycles by 40%.
  • Partnered with business stakeholders for feature prioritization and timely delivery.
  • Boosted app launch performance by 70% by implementing offline caching, session lifecycle optimization, and modular reusable components across Android and React Native platforms, validated through Firebase Performance API.
  • Achieved zero Sev-1 incidents & zero rollbacks for 2 consecutive years using proactive monitoring, 100% unit test coverage.
  • Directed cross-functional teams (12+ engineers), improving retention and engagement through scalable features.

SDE-2

Games24x7
05.2018 - 04.2021
  • Architected modular Android systems (analytics, attribution, sockets) using MVVM + Clean Architecture, driving 10% increase in retention and 5% revenue growth.
  • Implemented end-to-end Jenkins CI/CD pipeline for Android app builds, reducing manual effort and deployment time.

Android Developer

Get Simpl
12.2016 - 05.2018
  • Built merchant Android SDKs and automated CI/CD pipelines, enabling fast, reliable deployments and driving a 30% increase in sales.
  • Championed TDD and Agile practices, accelerating secure, iterative delivery and improving the development cycle by 20%.
  • Developed Android applications leveraging MVVM and Clean Architecture for scalable, maintainable solutions.

Lead Engineer

Snapdeal
07.2015 - 12.2016
  • Built merchant SDKs and automated CI/CD pipelines, enabling reliable deployments and increasing sales by 30%.
  • Championed TDD and Agile practices, reducing dev cycle time by 20%.
  • Architected and launched Exclusively Fashion Android app from scratch, leading cross-functional teams through full SDLC.

Senior Software Engineer

Sonim Technology
09.2014 - 07.2015
  • Developed sensor-based Sonim Protect application from scratch, ensuring reliability, scalability, and robust mobile architecture.

Senior Software Engineer

Samsung R&D
03.2012 - 09.2014
  • Core contributor to Contact and System framework team, developing foundational mobile system components and frameworks.

Education

B.E. - Computer Science & Engineering

Government Engineering College
Jabalpur, India
06-2011

Skills

  • Frontend & Mobile Development: Android (Java, Kotlin), React Native & React
  • Architecture & Design: Mobile Architecture, MVVM, Clean Architecture, Modular SDKs, Scalability, System Design
  • DevOps & CI/CD: Jenkins, Git, Docker, Mobile CI/CD Pipelines, App Store Deployment, Google Play Store Deployment
  • Backend & APIs: Nodejs, REST APIs, GraphQL, WebSocket
  • Testing & Automation: TDD, Unit Testing, Regression Automation, Jest
  • Security: OAuth2, JWT, SSL Pinning, AES Encryption, Secure Key-store
  • Cloud & AI/ML: AWS, Gen AI (AWS Bedrock, RAG, Vector DB), ML integrations

Timeline

Engineering Manager

Games24x7
06.2025 - Current

Tech Lead

Games24x7
04.2021 - 06.2025

SDE-2

Games24x7
05.2018 - 04.2021

Android Developer

Get Simpl
12.2016 - 05.2018

Lead Engineer

Snapdeal
07.2015 - 12.2016

Senior Software Engineer

Sonim Technology
09.2014 - 07.2015

Senior Software Engineer

Samsung R&D
03.2012 - 09.2014

B.E. - Computer Science & Engineering

Government Engineering College
Niraj Kumar