Jul 2021 – Present · 4 yrs 8 mos · Gurugram, Haryana, India · On-site

• Designed and built Airtel’s Payment SDK, supporting UPI, wallets, net banking, and cards, powering 2M+ daily transactions with 99.9% uptime and PCI-DSS compliant encryption.
• Developed key features like Quick Pay and Retry Payment, improving transaction success rates and reducing payment failures by 34%, enhancing the user experience.
• Launched an Offers-Only Payment SDK, contributing to a 12% MoM increase in user acquisition and engagement.
• Implemented AES/RSA encryption and robust error handling to secure sensitive payment data and improve transaction reliability.
• Addressed outages, API failures, and degraded network scenarios, improving overall SDK resilience and compliance with NPCI and RPWD guidelines.
• Built end-to-end clickstream analytics and Superset dashboards to help product teams track and optimize payment funnel metrics and user behavior.
• Enhanced app startup time, optimized memory usage, and reduced ANRs to improve app performance across low-end Android devices.
• Championed the adoption of modular architecture, making the codebase scalable and easy to maintain across multiple business use cases.
• Mentored junior developers through code reviews and knowledge-sharing sessions, helping build a strong, collaborative engineering culture.