Prodip Sarkar
React Native apps, shipped end to end
Overview
Senior React Native Developer @HeavyTask LLC
Social Links
GitHub Contributions
How I can help(4)
New app, start to store
A React Native + Expo app built from your design or idea — backend API included when you need one — submitted and live on the App Store and Google Play.
Two apps shipped solo to the App Store in the last 12 months.
Rescue & performance audit
Slow startup, crashes, or a failed store review? I diagnose production React Native apps and fix the real bottleneck, not the symptom.
40% runtime and 60% load-time improvements on a production platform.
Payments & integrations
Stripe, RevenueCat, subscriptions and one-time purchases — wired so they pass App Store review the first time.
In-app subscriptions and card payments live in two shipped apps.
Release automation
GitHub Actions + Expo EAS pipelines so every release ships from a git tag — no Xcode archives, no keystore juggling, no manual store uploads.
50+ hands-off production releases and counting.
Stack
Experience
HeavyTask LLC
- Location
- Remote
- Location type
- (Remote)
- Employment status
- Current
Led a cross-functional team of 5+ developers to architect and enhance the UTS (Universal Tracking System) platform with React Native, Expo, and AWS.
- Improved app performance by 40% and cut load times by 60% via code optimization and architecture restructuring.
- Built CI/CD with GitHub Actions and Expo EAS — 50+ production releases shipped with no manual steps.
- Managed App Store / Google Play release cycles with zero critical post-deploy bugs.
- Mentored 3 junior developers; established the team's coding standards, review process, and unit-testing strategy.
- React Native
- Expo
- AWS
- GitHub Actions
- CI/CD
- TypeScript
Boombox LLC
- Location
- Remote
- Location type
- (Remote)
- React Native
- WebRTC
- Socket.io
- AWS S3
- GraphQL
- REST API
Backyard Design Co.
- Location
- Remote
- Location type
- (Remote)
- React.js
- SVG
- HTML5
- CSS3
- JavaScript
Education
- Data Structures
- Algorithms
- Software Engineering
- Databases
Projects(8)
Cut load times by 60% and improved runtime performance by 40% on a production React Native tracking platform, then automated its entire release pipeline. Private client work — source is not public.
- React Native
- Expo
- AWS
- CI/CD
Awards(3)
Blog(5)
Shipping Arabic-First React Native Apps: RTL Lessons from Two Production Launches
What I learned building Harf Media and Basra TV — two Arabic-first React Native apps — about RTL layouts, fonts, numerals, and the bugs that only show up in right-to-left.
50+ Releases Without a Manual Step: GitHub Actions + Expo EAS
The CI/CD setup I built for a production React Native app — EAS build profiles, GitHub Actions triggers, store submission, and the small decisions that kept 50+ releases boring.
RevenueCat and Stripe in the Same App: Drawing the Line Apple Cares About
How I combined in-app subscriptions (RevenueCat) and direct card payments (Stripe) in production React Native apps without tripping App Store review — and the decision rule that makes it simple.
Cutting React Native Startup Time: What Actually Moved the Needle
A field report from restructuring a production React Native app — which optimizations delivered real startup and runtime wins, which were noise, and how to measure the difference.
Building Real-Time Audio Collaboration in React Native: Lessons from Boombox
Three years building a musician collaboration app taught me where real-time audio in React Native gets hard: signaling, iOS audio sessions, sync, and uploads that survive bad networks.
Work with me
I take on freelance React Native and full-stack projects — new apps shipped end to end, rescues of existing ones, payments integrations, and release automation. Based in Sylhet, Bangladesh (UTC+6), I overlap with US and EU hours and reply within 24 hours.