Alpha Technologies

• ▹Designed and maintained high-throughput backend services powering payment processing, wallet management, and enterprise invoicing using Node.js, Express.js, PostgreSQL, MongoDB, RabbitMQ, and BullMQ.
• ▹Built Stripe-based payment workflows supporting wallet top-ups, withdrawals, webhook processing, idempotent payment handling, and transaction reconciliation to ensure reliable financial operations.
• ▹Engineered asynchronous processing pipelines using RabbitMQ and BullMQ for notifications, scheduled jobs, and long-running business workflows.
• ▹Developed reusable backend modules for e-commerce, healthcare, and enterprise platforms by standardizing validation, error handling, and REST API design, improving maintainability across multiple products.

Apptunix

• ▹Developed backend services for e-commerce, marketplace, NFT, and ride-hailing platforms using Node.js, Express.js, MongoDB, PostgreSQL, Redis, and Socket.IO, delivering scalable REST APIs and business workflows.
• ▹Integrated Stripe, authentication providers, Firebase Cloud Messaging (FCM), and Google Vision API to enable secure payments, push notifications, image moderation, and third-party platform integrations.
• ▹Optimized PostgreSQL queries, indexing strategies, and Redis caching to improve API performance and support high-traffic application workloads.
• ▹Collaborated closely with frontend developers, QA engineers, and product teams to troubleshoot production issues, deliver new features, and maintain reliable releases.

Wiley-mthree

• ▹Developed a full-stack e-commerce application using Java, Spring Boot, SQL, and REST APIs as part of an industry-focused training program. Implemented authentication, product catalog, order management, and transaction workflows following layered architecture and backend development best practices.