Full-stack developer · Kolkata, India
Dependable backend systems, thoughtful interfaces, and the details that turn an idea into a product people can actually use.
Selected work
End-to-end projects designed around real workflows, clear architecture, and practical engineering decisions.
DSA practice
A progress and analytics platform that turns DSA practice into a visible, repeatable learning system, scheduled by a built-in FSRS v5 spaced repetition engine.
Engineering scopeAttempt tracking, FSRS v5 review scheduling, mistake analytics, streaks and difficulty trends, plus public profiles for sharing notes and curated problem lists.
Personal finance
A full-stack finance workspace for tracking transactions, budgets, savings goals, recurring bills, and spending patterns.
Engineering scopeSecure JWT authentication, refresh-token rotation, layered backend architecture, and responsive financial dashboards.
Food delivery platform · demo
A demo marketplace, not a real product, built to model four role-specific workflows for customers, restaurant owners, delivery partners, and admins.
Engineering scope45+ REST endpoints, role-based security, live order timelines, coupons, uploads, and containerized deployment, seeded with sample data you can sign in and explore.
A little about me
I'm Atin, a full-stack developer who enjoys making complex systems feel simple.
My strongest work sits where backend depth meets product thinking: modelling real domains, designing secure APIs, and carrying that care through to a responsive interface.
I learn by building. Each project is a chance to go deeper into architecture, performance, testing, deployment, and the small UX decisions that earn a user's trust.
Technical toolkit
Tools I use to move from a blank repository to a working product.
Java · Spring Boot · Spring Security · JPA / Hibernate · REST APIs
TypeScript · React · Next.js · HTML / CSS · Responsive UI
PostgreSQL · SQLite · Docker · GitHub Actions · Linux
Git · Maven · Gradle · pnpm · API testing · System design