Ansh Kumar

Full Stack Developer

Frontend focused Full Stack Developer with experience in React, JavaScript and Svelte, building responsive, high-performance applications and MVPs from scratch for startups. Skilled in translating Figma designs into pixel-perfect code using TypeScript, Tailwind CSS and Next.js with backend knowledge in Node.js, Express and MongoDB/Postgresql. Currently upskilling with Backend and Gen AI, and seeking remote opportunities to create impactful, scalable products.

Professional Experience

My journey in software development and the companies I've had the privilege to work with:

Full Stack Developer Intern

Techwire Studio Remote • India
Nov 2025 - Present 3 Months
  • Led Front End performance optimization using JavaScript and Core Web Vitals best practices, improving Lighthouse performance score from 60 to 90+ and reducing page load time by 40%.
  • Implemented end-to-end Razorpay payment integration using Node.js, enabling secure checkout, payment verification, and order workflows reducing manual payment handling by 80% and improved order success rate by 25%.
  • Designed and deployed a scalable image delivery architecture using AWS S3 and CloudFront with a custom domain, reducing product image load latency by 50–60% through global CDN caching.

Frontend Developer Intern

R2i2 Technologies Pvt. Ltd Remote • India
Dec 2024 - Apr 2025 4 months
  • Designed an offline-first PWA for fee collection using SvelteKit, maintaining 100% uptime in low-connectivity regions.
  • Automated receipt generation via PDF, reducing users workload by 70% and eliminating manual record errors.
  • Enabled bulk data handling through Excel import/validation, cutting entry errors by 60%.
  • Built database models, edge functions, role based access control and RLS policies to improve performance, security and data integrity.
  • Led agile development sprints, facilitated user feedback sessions and drove 80%+ adoption across roles.

Frontend Developer Intern

ONBO - Employee Onboarding Platform Remote • India
Sep 2022 - Dec 2024 2+ years
  • Engineered an employee onboarding platform with SvelteKit and TypeScript, cutting ramp-up time by 40% and reducing training costs significantly.
  • Translated high-fidelity Figma designs into responsive UIs with Tailwind CSS, achieving 99% design accuracy and increasing user engagement.
  • Led code reviews and enforced engineering best practices, reducing production bugs by 40% and boosting team development velocity.

Proof of Work

My journey in software development and the companies I've had the privilege to work with:

Altimey

Altimey

A scalable SaaS uptime monitoring platform that provides real-time infrastructure monitoring, alerts, dashboards and public status pages.

React TypeScript Node.js PostgreSQL RabbitMQ Docker TailwindCSS Razorpay
Green Circle

Green Circle

An offline-first plant sharing marketplace enabling communities to exchange plants and cuttings, even in low-connectivity areas.

React Nhost Docker PWA DaisyUI IndexedDB Service Workers
Revisit

Revisit

An AI-powered bookmark manager that helps users revisit, prioritize, and retain knowledge using smart summaries, gamification, and analytics.

React TypeScript Tailwind CSS Supabase Gemini AI
Course Flow

Course Flow

A secure, production-ready LMS backend designed to power modern learning platforms with authentication, payments, media handling, and scalable APIs.

Node.js TypeScript Express MongoDB Razorpay

Skills & Technologies

Here are some of the technologies I've been working with:

Core

(4)
HTML
CSS
JavaScript (ES6+)
TypeScript

Frameworks

(5)
React
Next.js
Svelte
SvelteKit
Tailwind CSS

Backend

(6)
Node.js
Express.js
MongoDB
SQL
PostgreSQL
REST APIs

Tools

(3)
Git
GitHub
Docker

Ready to Build Something Amazing?

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Available for freelance work — I create web, mobile, and custom software solutions that help businesses grow and succeed.

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