Delivered 2 production payment gateway integrations, Ecentric (Card) and NMI (ACH), across Chargebee’s distributed payment platform, spanning the backend-for-frontend (BFF), Openpay SDKs, hosted checkout, merchant dashboard, and QA automation for production merchants like Shoprite, InciteTax, and Jami.
Designed and implemented Openpay payment plugin Java SDKs for vault-first tokenization, 3DS authentication, CIT, MIT, SOAP integrations, and complete payment lifecycle management.
Migrated the Checkout test suite from Selenium to Playwright, cutting test time by 75% (from 3.2 minutes to 50 seconds per test).
Implemented Error Intelligence for Ecentric Card, mapping 160+ response scenarios to improve transaction diagnostics and merchant-facing error reporting.
Implemented Payment Components for NMI ACH, a PCI DSS compliant JS payment collection layer for building custom checkout experiences.
Built the complete frontend for an enterprise private RAG platform, including the marketing site, admin dashboard, customer dashboard, and chat page, using Next.js and TypeScript.
Implemented connectors like Google Drive and Jira, enabling selective ingestion and data management for RAG queries.
Containerized microservices for admin tooling covering RBAC, connectors, content, and platform configuration.
Built CI/CD pipelines with GitHub Actions for automated dashboard deployments, and collaborated on API design and schema migrations.
