Merged · PR #248
react-native-vision-camera-face-detector
Contributed an iOS migration from ML Kit to Apple Vision, resolving the arm64 iOS Simulator limitation while keeping Android on ML Kit.
Shubhanshu Barnwal
Mobile · Web · Backend · CloudSOFTWARE ENGINEERING · OPEN SOURCE
Senior SoftwareEngineer.
I design and build software from the ground up—across mobile and web apps, backend APIs, and cloud infrastructure—with a focus on architecture, performance, and reliable delivery.
3+Years
4+Apps shipped
1.4knpm installs / mo
2OSS packages
React NativeSwiftNext.jsNode.jsPostgreSQLAWSGCP
ENGINEERING
From architecture to production.
Mobile and web engineering, backed by the services, infrastructure, and delivery practices a product needs.
Mobile engineering
Production React Native and native iOS applications, SDK integrations, cross-platform architecture, framework modernization, and performance.
- React Native
- Swift
- iOS
- Android
Web engineering
React and Next.js web applications, responsive interfaces, and admin tools connected to backend APIs.
- React
- Next.js
- TypeScript
- JavaScript
Backend & data
APIs, relational data models, caching, and dependable real-time services that connect the product.
- Node.js
- Express
- PostgreSQL
- MySQL
- Redis
Cloud & delivery
Cloud infrastructure, server configuration, and automated CI/CD workflows for reliable delivery from build to deployment.
- AWS EC2
- RDS
- S3
- GCP
- GitHub Actions
App submissions & releases
App submission and publishing support for iOS and Android, from release builds to store delivery.
- App Store
- Google Play
- iOS
- Android
System design & quality
Systems designed from scratch, with clear service boundaries, performance, maintainability, PR reviews, observability, and production reliability.
- System design
- API design
- PR reviews
- CI/CD
#2 — SELECTED WORK
View allDeep 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.
#1 — OPEN SOURCE
View allTools 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.
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
CONTRIBUTIONS
Making the ecosystem better.
#3 — EXPERIENCE
See full timelineThree years, shipping real apps.
From building products end-to-end to leading architecture on apps in the App Store.
Jul 2025 — Present
Senior Software EngineerIllumine
React Native and native iOS development for production apps serving 100k+ users.
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
View allWriting up what I learn.
Deep-dives from real engineering work — how I built things and what I'd do differently.
Let's build something useful.
From mobile and web experiences to backend services to cloud infrastructure — let's talk about your product, an engineering opportunity, or an open-source collaboration.