Senior Full-Stack Engineer | Node.js · NestJS · TypeScript · React · Next.js | SaaS · FinTech · AI

Owned end-to-end backend architecture for SaaS and FinTech products, building scalable services, REST and GraphQL APIs, and real-time functionality with Node.js, NestJS, TypeScript, and WebSockets. Designed microservices and event-driven workflows using Kafka, RabbitMQ, SQS, and BullMQ for asynchronous processing and background jobs.

Built full-stack product features with React, Next.js, Vue.js, Nuxt.js, and React Native. Designed and optimized PostgreSQL, MySQL, and MongoDB databases, integrated Stripe, PayPal, and VPOS payment flows, and owned AWS, Docker, Kubernetes, CI/CD, monitoring, and production support.

Built production backend services, APIs, and business logic for a live SaaS platform using Node.js, NestJS, TypeScript, PostgreSQL, MySQL, MongoDB, Redis, and Prisma. Architected microservices, WebSocket functionality, asynchronous workflows, and message-driven processing for real-time collaboration features.

Improved reliability through caching, retries, idempotency, rate limiting, structured error handling, database indexing, query tuning, and migrations. Owned AWS and Docker infrastructure, CI/CD pipelines, automated testing, logging, incident investigation, and contributed to architecture discussions, code reviews, and React/Next.js work.

Built backend services and REST APIs for production web and mobile applications using Node.js, NestJS, Express.js, and TypeScript. Developed authentication, authorization, WebSocket functionality, payment workflows, and scalable data layers using PostgreSQL, MySQL, MongoDB, and Redis.

Built queues, caching, background jobs, and transaction workflows while contributing to React and Next.js frontend development. Owned quality across testing, debugging, performance optimization, CI/CD, releases, and ongoing production support.