Available now
Hire a Senior React Native Developer
I'm Praveen Singh, a Senior React Native Engineer in Noida, India, with 5+ years shipping Android and iOS apps for upGrad, Delightree and a UK fintech. I'm open to senior roles and consulting, and can start immediately.
- Open to
- Senior React Native and mobile roles, consulting
- Joining
- Immediately. Remote, hybrid or on-site
- Based in
- Noida, India
- Focus
- Architecture, performance, CI/CD
What I can help with
React Native upgrades and the New Architecture
Moving an app to a current React Native version and onto the New Architecture: the template diff, type errors, native build changes and the props that fail silently.
Wrote up a full 0.86 → 0.87 upgrade: 16 TypeScript errors to 0, plus a runtime crash and two props that silently stopped working.
Performance: start-up, lists and re-renders
Profiling in release builds, then fixing what's slow: cold start, long lists, frame drops and API round trips.
upGrad's median cold start went from 2.9s to 1.8s; Delightree's audit screens load about 42% faster; Reevo's frame drops fell from 9.2% to 3.8%.
Native modules in Swift and Kotlin
The parts React Native doesn't ship with: video SDKs, NFC, Bluetooth Low Energy, Siri and system integrations.
Bridged Brightcove video at upGrad, NFC tag authentication with 100K+ interactions, and real-time BLE control of a talking toy.
Offline-first apps and sync
A local database the screens read from, writes queued in an outbox and applied once, and sync that survives a dead zone.
Delightree's crash-free sessions went from 98.2% to 99.3% with offline audits; agency apps' sync failures fell from about 8% to 2%.
Release pipelines and CI/CD
Fastlane lanes, GitHub Actions quality gates and over-the-air updates, so a release is routine and a fix can't wait for store review.
At upGrad the release cycle went from 5 days to 3, and a production hotfix now ships in under 2 hours.
On-device AI and AI-ready apps
Running models on the phone, and exposing an app to Siri, Gemini and coding agents without losing data.
Measured Apple's Foundation Models against ExecuTorch in one React Native app, and found a SQLite bug that lost data when Siri wrote to the app.
Ways to work together
A senior role on your team
Senior React Native or mobile engineer, full time. Remote, hybrid or on-site from Noida (Delhi NCR), and can join immediately.
Consulting on a project
A defined piece of work, like an upgrade, a performance fix, a native module or an offline-first design, scoped with you before it starts.
How I work
- Architecture
- Domain-driven module boundaries, local-first sync for unstable networks, and typed API contracts with normalised errors.
- Performance
- Release-mode FPS and render profiling, startup instrumentation with regression alerts, list virtualisation and deferred rendering.
- Native when it matters
- Swift and Kotlin modules for video, NFC and BLE, plus React Native version upgrades and New Architecture adoption.
- Delivery pipeline
- Fastlane lanes for repeatable releases, GitHub Actions quality gates, and OTA updates for fixes that can't wait for review.
- Production
- Crashlytics, Sentry and Datadog watching every release, and rollback-first playbooks so a bad build is a non-event.
“I had the opportunity to work with Praveen Singh on multiple projects, and he consistently demonstrated a strong work ethic and excellent development skills. His working style is structured, proactive, and focused on delivering quality results. Praveen has solid experience in React Native, JavaScript, and TypeScript, and he handles complex features with confidence. … I highly recommend Praveen for any mobile development role where ownership, quality, and reliability are important.”
Questions
Is Praveen Singh available for React Native work?
Yes. Praveen Singh is open to Senior React Native and mobile roles and to consulting, and can start immediately. He works remote, hybrid or on-site from Noida (Delhi NCR).
Can Praveen work remotely for a company outside India?
Yes. Praveen works remotely, and has already built for companies outside India, including the Reevo credit card app for a UK fintech.
What React Native work does Praveen take on?
Praveen takes on React Native upgrades and New Architecture migrations, performance work (start-up, lists, re-renders), native modules in Swift and Kotlin, offline-first data and sync, release pipelines with Fastlane and GitHub Actions, and on-device AI features.
Can Praveen upgrade an old React Native app to the New Architecture?
Yes. React Native version upgrades and New Architecture adoption are part of Praveen's regular work, and he has published a step-by-step account of a 0.86 to 0.87 upgrade, including the runtime crash and silent prop changes it caught.
How do I hire Praveen Singh?
Email praveen.codeit@gmail.com or message Praveen on LinkedIn at linkedin.com/in/praveens2 with a few lines about the role or project. He replies within 24 hours.
Tell me about the role or project
A few lines are enough. I reply within 24 hours.