Jun 2023 – Jan 2025 · 1 yr 7 mos · San Jose, California, United States · On-site

• Enhanced centralized payment risk engine, reducing fraud and upholding regulatory standards.
• Key role in migrating critical products to internal platform for improved efficiency.
• Contributed to design and development of key features for payment risk engine at BILL.

Aug 2020 – Oct 2021 · 1 yr 2 mos

• Developed a distributed payment system using Java and RESTful APIs for seamless transaction processing.
• Ensured multi-tenant and extensible features for processing transactions across various payment methods.

Aug 2019 – Aug 2020 · 1 yr

• Developed a robust authentication module for secure multi-factor authentication using various methods like SMS-OTP, Time-Based OTP, X509 Cert, JSON Web Token, and HMAC.
• Integrated the authentication module with identity providers to enhance security measures for payment instruments.

Nov 2018 – Jul 2019 · 8 mos

• Developed an order management system, facilitating the creation of payment cards like Debit, Credit, and Prepaid.
• Utilized LUNA HSM for secure cryptographic operations to ensure the generation of card data.
• Streamlined workflows for efficient onboarding and management of card printing vendors.

Mar 2018 – Oct 2018 · 7 mos · Gurugram, Haryana, India

• Developed a distributed Java application to reduce non-checked-in hotel bookings at OYO.
• Leveraged MongoDB for booking events, ensuring high reliability and scalability.
• Developed adapters for customer interaction over WhatsApp, IVR, and SMS.

Jun 2016 – Feb 2018 · 1 yr 8 mos · Mumbai,India

• Managed deployment and operation of 100+ Debian-based servers on AWS and 50+ dynos on Heroku, utilizing Terraform, Puppet, and Jenkins for maximum efficiency.
• Built a scalable log data pipeline using Kinesis with ELK stack and implemented Icinga for system monitoring.