Prince Singh

@princesingh · full-stack developer

React, Node.js, PostgreSQL, TypeScript.

I build web products end to end — schemas and APIs on one side, interfaces people actually enjoy using on the other. Lately that's meant SaaS analytics, headless commerce, and realtime tools. I care about performance, accessibility, and software that stays correct under load.

Open to freelance projects and full-time roles · Remote — working worldwide

What I do

I'm a full-stack developer for products where the details matter: the query plan behind the dashboard, the loading state nobody notices, the animation that makes an interface feel alive instead of busy.

  • React TypeScript Next.js

    Product engineering

    Typed interfaces, sensible state, and features taken from idea to production without losing the thread.

    7 products shipped end-to-end

  • Node.js PostgreSQL Redis

    Backend systems

    APIs, workers, queues, and data pipelines that stay fast and correct at scale — with caching, Postgres tuning, and monitoring built in.

    2M+ events/day, sub-second queries

  • Stripe Prisma Next.js

    Commerce & SaaS

    Headless storefronts, subscriptions, checkout flows, and admin tooling that make the business side of a product feel effortless.

    40+ merchants served on Cartly

  • Three.js GGSAP Jest

    Performance & polish

    Core Web Vitals, accessible components, and motion with restraint — the difference between a working product and one that feels expensive.

    98+ Lighthouse across recent builds

Experience

Four years of shipping product — first at studios, then in-house, now independently.

Full résumé ↗
  1. 2024 — Present Freelance

    Senior Full-Stack Developer

    Independent · Remote

    End-to-end product delivery for startups — architecture, APIs, interfaces, and deployment. I work directly with founders and own the stack from schema to shipped feature.

    Rebuilt a SaaS analytics platform now ingesting 2M+ events a day.

    ReactNode.jsPostgreSQLAWS
  2. 2022 — 2024 Full-time

    Full-Stack Developer

    Northwind Labs

    Built a headless commerce platform used by 40+ merchants and cut checkout latency by 38%. Introduced the design system, CI pipelines, and mentored two junior developers.

    Checkout latency down 38% across 40+ merchant stores.

    Next.jsPrismaStripeRedis
  3. 2021 — 2022 Full-time

    Frontend Developer

    Pixel & Co.

    Delivered marketing sites and internal dashboards for fintech clients. Rebuilt the front-end stack with TypeScript and React, and raised Lighthouse performance across the board.

    98+ Lighthouse scores across every client build.

    TypeScriptReactGSAP
    98+ average Lighthouse performance across recent client builds. PIXEL & CO. · 2021 — 2022
  4. 2020 — 2021 Full-time

    Junior Web Developer

    Crafted Web Studio

    Shipped responsive websites for 15+ clients, maintained custom PHP and WordPress builds, and learned to own projects from first call to launch.

    15+ client sites shipped in the first year.

    JavaScriptPHPMySQL
    15+ client websites shipped in the first year, scoped and launched end-to-end. CRAFTED WEB STUDIO · 2020 — 2021

Shipping in public

Commits, reviews, and small improvements — the quiet part of building software.

— contributions in the last year.

Hover a day to see its count
View on GitHub ↗

Selected projects

Things I built outside client work — most of them start with a question and end with a shipped product.

  • Oct 2026

    Real-time product analytics with funnels, retention cohorts, and a custom dashboard builder — ingesting 2M+ events a day.

    ReactNode.jsPostgreSQL
  • Mar 2025

    Headless commerce platform with a storefront builder, Stripe checkout, and an admin dashboard serving 40+ merchants.

    Next.jsPrismaStripe
  • Nov 2025

    Realtime team messaging with presence, typing indicators, threads, and end-to-end encrypted direct messages.

    Socket.IORedisReact
  • Aug 2024

    AI video repurposing tool that turns long-form content into short clips with auto captions and smart cropping.

    OpenAINode.jsFFmpeg
More experiments on GitHub ↗

Writing

Notes from things I built, broke, and fixed.

  • Performance Oct 2026

    How a dot grid, IntersectionObserver, and a little restraint keep this page smooth on a five-year-old laptop.

  • Backend Aug 2026

    Idempotency keys, unique constraints, and the bug that taught me to design retries before writing the happy path.

  • Frontend Jun 2026

    Reduced motion is not a kill switch. It's a second design that deserves the same attention as the first.

Recognition

Certifications and programs that shaped how I build.

  • AWS Certified Developer — Associate

    Amazon Web Services · cloud architecture, deployment, and operations.

    2024
  • Meta Front-End Developer

    Meta · React, interface engineering, and responsive design.

    2022
  • MongoDB Associate Developer

    MongoDB · document modelling, aggregation, and application design.

    2021
  • Full-Stack Engineering

    freeCodeCamp · 300 hours of responsive web, APIs, and databases.

    2020

What I work with

The tools I reach for when there's a product to build.

Languages

  • TypeScript
  • JavaScript
  • Python
  • SQLSQL
  • HHTML / CSS

Frontend

  • React
  • Next.js
  • Tailwind CSS
  • GGSAP
  • Three.js

Backend

  • Node.js
  • PostgreSQL
  • Redis
  • Prisma
  • GraphQL

Cloud & tools

  • AWSAWS
  • Docker
  • Git
  • Vercel
  • Jest
  • PWPlaywright

Education

  • B.Tech, Computer Science

    University of Delhi · First Class with Distinction

    2016 — 2020
  • Full-Stack Engineering

    freeCodeCamp · 300-hour curriculum

    2020
~/contact

Have something
worth building?

I'm taking on freelance projects and open to full-time roles. Tell me what you're working on — I usually reply within a day.

Email me
~/case