Senior React Native Engineer
8+ years building cross-platform mobile apps with React Native and Firebase for startups, product teams, and international clients.
I lead delivery personally and collaborate with a small trusted team only when the product scope needs extra depth.
8+
Years Experience
20+
Apps Shipped
iOS
App Store Releases
Android
Google Play Releases
End-to-end
Delivery Ownership
Featured Case Studies
A focused portfolio of delivery-led mobile products across education, community, commerce, and utility use cases.
A React Native and Firebase Quran vocabulary app that teaches Quranic Arabic through spaced repetition, daily challenges, and leaderboards — grown from 10K to 300K+ users over three years.
React Native Quran Learning App
Education
A React Native and Firebase movie discovery and community app for Android — designed, built, and shipped solo in four months with TMDB-powered catalogs, watchlists, and discussion threads.
React Native Movie Community App
Entertainment
What To Expect
I lead mobile projects personally from architecture to release, and I bring in a small trusted team only when the scope clearly benefits from it.
Personal Leadership
You work directly with the engineer shaping architecture, execution, QA, and release quality.
Clean Architecture
I favor straightforward app structure, stable state flows, and Firebase models teams can maintain after launch.
Clear Communication
Expect realistic tradeoffs, concise updates, and steady momentum without unnecessary process noise.
Long-term Support
I stay involved after launch for stabilization, iterative feature work, store submissions, and product growth.
How I Work
I keep the process clear, delivery-led, and practical. You work directly with the person leading the mobile build.
Clarify the product scope, technical constraints, and delivery goals before implementation starts.
Set the app structure, Firebase model, release path, and quality standards up front.
Ship incrementally with clear communication, clean code, and production-minded execution.
Handle store-readiness, QA, fixes, and the details required for a smooth release.
Stay involved for iterations, maintenance, and product growth after launch.
Services
From MVP delivery to Firebase architecture and long-term support, the service mix stays centered on outcomes, not generic resourcing.
Build a launch-ready mobile product with the right technical foundation from the start.
Handle release preparation, store readiness, and submission details across both platforms with less launch risk.
Keep the app healthy with bug fixes, incremental features, and reliable post-launch technical ownership.
Model the backend for fast mobile delivery with scalable data structures, auth flows, and maintainable rules.
Translate product and design intent into polished cross-platform interfaces that feel native and reliable.
Get senior technical input on product direction, app audits, and mobile delivery decisions before expensive mistakes compound.
Testimonials
Clear communication, steady execution, and technical decisions that hold up after release.
“Jahanzaib worked like an owner, not just a contractor. He moved quickly, communicated clearly, and delivered a stable mobile app we could continue building on.”
Alex K.
Founder, USA
“He improved the product while building it. The technical decisions were practical, and the release process stayed organized from start to finish.”
Mohammed A.
Founder, UK
“Strong React Native execution, thoughtful Firebase architecture, and very little hand-holding needed once the goals were clear.”
Sofia M.
Product Lead, EU
Let's Build
Tell me what you are building, where it is stuck, and what outcome you need from the mobile product.