Headline

MERN Stack Developer

Location

Jalpaiguri

AI stack

claude code

codex

cursor

github copilot

langgraph

openai

Work experience

Full Stack Engineer at thebrandwick, Mar 2023 - Mar 2026 · 3 y, Remote, • Architected Next.js (App Router) applications with per-route rendering strategies (ISR/SSG/SSR), improving Core Web Vitals by ~20% and achieving LCP under 2.5s across key routes. • Built a reusable component library of 30+ components (multi-format document preview, side-by-side comparison UI); strict TypeScript interfaces reduced runtime errors by ~25%. • Engineered centralised Axios interceptor layer for automated JWT refresh, error normalisation, and request deduplication — cut frontend API boilerplate by ~40%, accelerating feature delivery. • Integrated 100+ Playwright E2E tests into CI/CD pipelines, reducing post-release regressions by ~30% across complex client features within Scrum sprints. • Implemented WebSocket real-time messaging UI with sub-200ms latency; defined efficient API contracts and JSON schemas collaborating with backend engineers.

Education

Bachelor of Science, Zoology/Animal Biology, University of North bengal

Master of Software Engineering, Masai

Public links

github: https://github.com/Biswajit2595

biswajit2595.github.io: https://biswajit2595.github.io/