Shubhanshu Barnwal

Shubhanshu Barnwal

React Native · iOS · AndroidOpen
Open Source • Mobile Engineering

Senior MobileEngineer

I architect and ship production mobile apps with React Native, build open-source developer tools, and create solutions that improve the React Native developer experience.

View Work Résumé

3+

Years

4+

Apps shipped

1.4k

npm installs / mo

2

OSS packages

#1 — OPEN SOURCE

Tools I built for problems I actually hit.

Extracted from production work, documented, and published. Real installs from real teams — the honest signal that they solve something.

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react-native-skelo

Automatic skeleton loading for React Native

Hand-writing skeleton screens is tedious and drifts out of sync with the real UI. Skelo generates the loading state from the component you already wrote — describe your UI once, get the skeleton for free.

297/mo
v0.0.5
$npm i react-native-skelo
npm GitHub

react-native-qa-logger

In-app QA logging & debugging for React Native

QA and non-technical testers can't open a Metro console. This drops an in-app debug console into any build — network logs, errors, and events visible on-device, so bug reports come with real evidence instead of screenshots.

1.1k/mo
v1.1.1
$npm i react-native-qa-logger
npm GitHub
#2 — SELECTED WORK

Deep case studies, not a project dump.

Two production problems, told the way I'd talk through them in an interview: the constraint, the approach, and what actually shipped.

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Senior Software Engineer · Illumine · 2026

Migrating a production app to React Native's New Architecture

Took a large, live React Native app off the legacy bridge and onto Fabric + Hermes — while it kept serving 100k+ daily users.

React NativeFabricHermesTypeScript+3
Read case study
Senior Software Engineer · Illumine · 2025

Shipping reliable multi-provider payments in a mobile app

Integrated multiple payment providers behind one dependable checkout, with native iOS handling where it mattered.

React NativeSwiftStripeAdyen+3
Read case study
#3 — EXPERIENCE

Three years, shipping real apps.

From building products end-to-end to leading architecture on apps in the App Store.

See full timeline

Jul 2025 — Present

Senior Software EngineerIllumine

React Native and native iOS development for production apps serving 100k+ users.

Parent App Teacher App

Dec 2023 — Jun 2025

Lead App DeveloperWiingy

Owned end-to-end mobile development for Wiingy's student and tutor platforms.

Jun 2023 — Nov 2023

React Native DeveloperMidknight Studios

Built a cross-platform social app with a Next.js admin panel, from scratch.

Sep 2022 — Dec 2022

AWS Cloud InternF13 Technologies

Earned AWS certifications and deployed React web apps on AWS.

#4 — WRITING

Writing up what I learn.

Deep-dives from real engineering work — how I built things and what I'd do differently.

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Let's ship your next app.

Building something exciting? Whether it's a mobile product, an open-source collaboration, or a technical chat — feel free to reach out.

Email me