Hariom Singh

Results-driven Lead Android Engineer with 9 years of experience engineering high-performance native Android applications for the FinTech and banking sectors. Proven expertise in driving technical direction, enforcing Clean Architecture, and scaling secure B2B/B2C mobile solutions for enterprise clients. Adept at resolving complex performance bottlenecks, ensuring rigorous OWASP security compliance, and mentoring cross-functional Agile teams to accelerate feature delivery.

Senior Consultant (Lead Android Developer) at NTT Data Information Processing Services Pvt. Ltd. (2024-03 – Present)

• Architectural Leadership: Own Android architecture decisions, release cycles, and overall technical roadmap for enterprise-scale B2C and B2B banking applications for a leading Spanish bank.
• System Design & Modernization: Architect and implement robust multi-module applications utilizing MVVM and Clean Architecture, ensuring long-term scalability and mitigating technical debt.
• Scale & Stability: Maintain and optimize applications scaling to over 100K+ active users, consistently delivering high-quality production releases with minimal crash rates.
• Engineering Excellence: Lead and mentor a team of junior and mid-level developers, enforcing strict code quality, PR review standards, and Agile best practices.
• Cross-Functional Delivery: Partner directly with backend teams, QA, and business stakeholders to align technical capabilities with complex financial product goals.

Technology Analyst (Android Developer) at Infosys Ltd. (2022-03 – 2024-03)

• Performance Optimization: Spearheaded the refactoring of legacy code with Coroutine-based asynchronous processing, significantly improving application stability and reducing crash rates by ~25%.
• FinTech Engineering: Developed and enhanced core financial modules handling high-stakes loan lending and credit card solutions.
• API & Data Flow: Engineered seamless and secure data synchronization between mobile frontends and backend systems utilizing Retrofit and OkHttp.
• Product Expansion: Architected and deployed new native Android modules specifically tailored to boost B2C customer engagement.

Android Developer at Craft Silicon Pvt. Ltd. (2017-10 – 2022-02)

• Microfinance Solutions: Engineered full-lifecycle native Android applications for the microfinance sector, supporting highly complex B2B and B2C operational workflows.
• Security & Compliance: Hardened applications against vulnerabilities by strictly adhering to OWASP mobile security guidelines and implementing secure coding practices.
• Data Protection: Designed robust security layers including secure authentication flows, local SQLite data encryption, and role-based access control for sensitive financial data.
• End-to-End Delivery: Drove the complete SDLC from requirement analysis and architectural design to deployment and post-production support.

Bachelor of Technology in Information Technology – Bengal College of Engineering and Technology (2013-08 – 2017-04)