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Rajan Singh

@rajansingh3

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Software Engineer at Bytive Technologies who shipped a multi-tenant Jewellery POS serving 10+ clients.

India

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At Bytive Technologies, I led frontend delivery for Kisna Diamond, an e-commerce platform handling 10,000+ concurrent users. I also raised Shaivam's Lighthouse performance score from 48 to 84.

I built and scaled JewelStack, a multi-tenant Jewellery POS serving 10+ clients, and led development of the PC Jeweller e-commerce platform, admin panel, and franchise portal. I also developed REST APIs with Node.js, Express, and MongoDB, and deployed services on AWS EC2 and Lambda.

I built School Ease, a school-management SaaS, and xSpace, a commercial macOS storage cleaner, solo. I also authored xreact, an open-source React scaffolding CLI published as three npm packages.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Bytive Technologies

Apr 2023 - Present (3 years 6 months)

Led frontend for e-commerce platforms handling 10,000+ concurrent users, raised Lighthouse performance from 48 to 84, and built a multi-tenant POS platform. Developed REST APIs with Node.js, Express, and MongoDB, and deployed services on AWS.

React Next.js NodeJS Express MongoDB AWS REST APIs Redux toolkit Tailwind Material UI Mantine Error Boundaries Code Splitting Image optimization SSR RBAC CI CD

Software Engineer Intern

Bytive Technologies

Nov 2022 - Apr 2023 (5 months)

Built a secure forgot-password flow with Node.js, MongoDB, and Nodemailer. Delivered production UI features with Mantine, Material UI, Tailwind CSS, and RTK Query for API integration.

NodeJS MongoDB Nodemailer Mantine Material UI Tailwind Redux RTK Query