// web + mobile engineer, 9 yrs
Rajendran Nadar
React & React Native developer in Mumbai — building fast, accessible web & mobile apps with Next.js and Node.js.
I design & build fast apps for web & mobile.
React.js on the web, React Native for iOS & Android, Node.js underneath. Nine years shipping accessible products for startups and remote teams — and giving back through open source.
// about
Nice to meet you
I'm a web & mobile application developer with nine years of experience building products for startups and remote teams.
I care about software that's fast, accessible, and genuinely good to use. Lately I've been putting more time into open source and helping the community grow. Whether it's a web app, a cross-platform mobile app, or a desktop tool, I like owning a problem end-to-end — from the data model to the last pixel.
Fast, accessible React.js & Next.js apps.
React Native + Expo — iOS & Android from one codebase.
UI/UX in Figma — wireframe to shipped interface.
Electron apps + Arduino / NodeMCU device interfaces.

// stack
One system, many surfaces
The tools I reach for, and how they connect — React on top, Node and a small graph of data tools underneath.
Architecture
How I usually wire an app — a React / Next.js front end talking to the server through GraphQL and API routes, then Hasura Cloud serving instant GraphQL over Postgres, with Firebase and Auth.js handling data and auth.
Core
Ecosystem
// open source
Building in the open
All repos on GitHub →I like giving back to the tools I use every day. A few projects and contributions I'm proud of:
Easy to customise, easy to use UI elements for React Native.
A wrapper around React Native Reanimated that makes the animation system easier to use.
A lightweight game engine for React Native.
Routing and navigation for React Native and web apps.
Material Design components for React Native (Android & iOS).
Calculate a resistor's value from its colour bands, without the effort.
// experience
Where I've been
// nine years, most recent first
2023 — Present
Software Engineer
RUDRA Cyber Security Pvt. Ltd. · Mumbai
On-site, focused on UI/UX for applications and making them more secure & safe to use.
2022
Front End Developer
Lendsmart India · Chennai
Designed new components and improved the UI/UX across their web applications.
2021
Freelance Mobile App Developer
EncureIT Systems & Sate Process Equipment · Pune & Mumbai
Built high-quality mobile apps with React Native, backed by PHP and Django.
2020
Freelance Web & Mobile App Developer
Deity Technologies · Madurai
Developed web & mobile applications on a decentralized database architecture.
2019
Freelance Web & Full Stack Developer
Agnostech Innovations & Immovable Property Safety Agency · Mumbai
Built responsive web apps with React.js and GraphQL, and tuned performance.
2018
Freelance Web & Mobile Developer
Mangal Essakki Innovations & SIES Graduate School · Navi Mumbai
Shipped Android/iOS apps and secure web applications backed by real-time databases.
2017 — 2018
Web App Security & Full Stack Developer
SIES Graduate School of Technology · Navi Mumbai
Built secure web apps guarding against SQL injection, XSS and CSRF using PHP, MySQL and Material Design.
2015 — 2016
Full Stack Web Developer & Designer
Bright Signs · Navi Mumbai
Where the freelancing journey began — dynamic web pages with HTML5, CSS3, JavaScript and PHP.