Open to opportunities

Kelvin Gevariya

@kelvingevariya

Full-stack engineer specializing in headless commerce — Medusa.js & MercurJS — plus Node.js, React, Next.js, TypeScript.

India

Message

What I'm looking for

I seek a role building scalable web applications with a strong engineering team, focusing on performance, payments, and growth opportunities.

I’m a full-stack engineer specializing in headless commerce on Medusa.js and MercurJS.

What I work on:

Pricing engines, RBAC permission systems, and order splitting across vendors
Frontend performance optimization with React, Next.js, and TypeScript
Stripe billing for subscriptions and marketplace payments
JWT-based authentication with proper token expiry and refresh handling
Backend API design and real-time WebSocket integrations
Cloud deployments with Vercel and AWS S3

Experience

Work history, roles, and key accomplishments

Junior Software Developer

Zerotime Solutions

Jul 2024 - Jul 2025 (1 year)

Built secure authentication and RESTful APIs, implemented Next.js SSR/SSG and Stripe billing to process $50K+ monthly, and improved performance and engagement metrics (page load -50%, sessions +40%, engagement +25%).

Next.js MongoDB JWT Stripe WebSockets

Software Developer Intern

Zerotime Solutions

Dec 2023 - Jun 2024 (6 months)

Developed component-based React interfaces and Express.js APIs, optimized performance (+35%) and reliability (+40%), and reduced production defects through code reviews (-30%).

React Performance Optimization Testing Agile REST APIs