Bivek Singh

Led architecture and development of 5+ full-stack ecommerce apps (500K+ MAU), standardizing SSR/ISR, routing, data fetching, and state management. Set performance targets and added automated CI checks to prevent regressions before release. Migrated monolithic backend to microservices with SNS, SQS, and AWS, including an affiliate service syncing 10K+ orders/month with less than a second delay. Partnered with Sales and Marketing to translate objectives into technical roadmaps, releasing features with feature flags and staged rollouts for safety. Mentored engineers through structured code reviews, pair programming, and documented guidelines, increasing team productivity by roughly 20%.

Cut page load time by 80% via bundle trimming, route-level code splitting, image/CDN optimization, HTTP caching, and render-pipeline tuning, contributing to a 30% sales increase. Applied TDD and automated testing to improve reliability, maintainability, and reduce regressions. Built real-time cart synchronization with WebSockets, reducing cross-device desynchronization by 95% across web/mobile platforms. Built core e-commerce features (Wallet, Vouchers, multi-payment-gateway checkout) and internal dashboards. Improved SEO and client-side responsive design for high-traffic launches.

Freelance Full Stack Developer at Freelancer / Nepal

Delivered full-stack web projects end-to-end (React front-ends and modular REST services with Express, MySQL), accelerating performance for 10K+ monthly users by tuning payloads and caching. Implemented automated unit/integration tests in CI (Jest, Supertest), significantly improving code reliability and maintainability across projects.

Software Developer at Feno Pix Technologies Pvt. Ltd.

Independently developed 4 new chart types (Funnel, Pyramid, Error, Box-Wisker) for CanvasJS charting library and contributed features to 10+ reusable charts in JavaScript, driving adoption by thousands of clients globally. Integrated website code editor with JS Fiddle, boosting user engagement that led to a 20% increase in library interactions. Created comprehensive documentation for the library, improving SDK usability and reducing developer support tickets by 40%. Developed several interactive dashboards and chart galleries that improved onboarding for enterprise clients, boosting user engagement.