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Fullstack Developer

Siddhanta Chandra

Fullstack Developer based in Kolkata, building robust architectures with creative designs and intuitive user interfaces.

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Journey

Experience

Frontend Developer Intern

Onlybees Pvt. Ltd. • Feb, 2026 — Present

  • ✦Develop reusable React components used across multiple application modules, improving development consistency and reducing duplicate UI implementation.
  • ✦Optimized application performance using TanStack Query caching and data fetching strategies, minimizing redundant API requests and improving user experience.
  • ✦Develop and maintain REST APIs and business logic modules using NestJS, TypeScript and PostgreSQL.
  • ✦Owned backend implementation for multiple product features, designing endpoints, implementing business logic and supporting production deployments.
Next.js
React.js
JavaScript
Tailwind CSS

Frontend Developer

CricketWinner LLC • June, 2021 — Nov, 2022

  • ✦Designed responsive, accessible, and visually appealing user interfaces using React.js and SCSS
  • ✦Implemented React Query caching and query management, reducing redundant API requests and improving application responsiveness.
  • ✦Optimized website performance by reducing render-blocking resources and improving asset loading times by 1.89 seconds.
  • ✦Collaborated with back-end developers to create and integrate APIs efficiently.
React
SASS
JavaScript
Figma

Education

Master In Computer Application
2024 — 2026

Sister Nivedita University, Kolkata

Bachelor Of Computer Application
2021 — 2024

University of Engineering & Management, Kolkata

Indian School Certificate (ISC)
2019 — 2020

Julien Day School, Kolkata

Selected Work

Projects

A curated selection of product, platform, and interface work with a focus on motion, usability, and scalable frontends.

Slaysuki TCG preview

Slaysuki TCG

E-commerce

A full-stack trading card marketplace with a microservices backend, custom inventory and order management CMS, customer storefront, payment processing, shipping automation, and cloud-based asset management.

Next.jsReactNestJSPrisma ORMRedisTanstack QueryTailwind CSSCloudflare R2BullMQCashfreeShiprocket
Live Demo
Journalist Portfolio & CMS preview

Journalist Portfolio & CMS

Portfolio

A full-stack portfolio and blogging platform for a journalist featuring a custom CMS, rich-text article editor, media management, secure authentication, and cloud-based file storage.

Next.jsTypeScriptPostgreSQLPrisma ORMCloudflare R2Tailwind CSSBlockNode
GitHubLive Demo
ZestQuiz preview

ZestQuiz

SaaS

A quiz platform featuring AI-powered quiz generation, role-based authentication, quiz management, real-time chatbot support, performance tracking, and an admin dashboard for content management.

Next.jsReactNestJSPostgreSQLPrisma ORMJWT AuthenticationDeepSeek APITailwind CSSDocker
GitHub

Technical Expertise

What I'm good at

Frontend, backend, tools, and AI workflow.

Frontend

React
TypeScript
Tailwind
TanStack Query

Backend

NestJS
Express
PostgreSQL
Prisma

Tools

Git
Docker
Postman
Figma

Working with AI

Agentic development

Building with autonomous coding agents to streamline development and boost productivity.

Codex
Open Code
Multi-agent coding & Workflow

Contact Me

Let's build something sharp and usable

Reach out directly, browse my work, or grab the resume.

Email

iamsiddhanta.10@gmail.com

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LinkedIn

siddhantachandra

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GitHub

SiddhantaChandra

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Resume

SiddhantaChandra_CV.pdf

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