Hi, I'm Mantu.
Senior React Native Developer with 7+ years of experience building high-performance mobile apps across iOS and Android, specializing in native modules, real-time ML integration, and cross-platform architecture.
The person behind the code
A quick summary of who I am and what I've been building.
Senior React Native Developer with 7+ years of experience building high-performance mobile apps across iOS and Android, specializing in native modules, real-time ML integration, and cross-platform architecture.
What I do
Crafting awesome mobile experiences with a touch of magic — the languages, tools, and frameworks I reach for.
Languages
Technologies
Core Proficiency
Experience
7+ years leading teams and shipping mobile apps used by thousands.
Sr. React Native Developer & Team Lead
iTechnolabs Pvt. Ltd.
- Led and mentored 12+ developers in Agile sprints, establishing TypeScript-first coding standards and code review practices that reduced production bugs across all team projects
- Integrated Google's MediaPipe PoseLandmark model for real-time human pose estimation in a fitness app, achieving 95% pose accuracy across 33 body landmarks
- Architected a Turbo Module for human pose detection supporting React Native's New Architecture, and extended Expo compatibility via a custom config plugin
- Created a production-ready React Native boilerplate (Expo SDK 57) featuring TypeScript, Expo Router, Zustand, TanStack Query, i18n, ESLint, Prettier, and Husky pre-commit hooks
Sr. React Native Developer
Suffescom Solutions
- Led a team of 7 developers, implementing React Native coding standards and PR review workflows that improved code consistency and reduced merge conflicts
- Created an Android native module enabling background tasks with 99.9% reliability
- Built a food delivery app serving 1,000+ users, implementing real-time tracking and payments via WebSockets and Maps
- Resolved subscription validation loopholes by implementing server-side receipt verification, achieving 100% compliance with single-user license policies
Junior iOS Developer & React Native Developer
Immanent Solutions
- Built 4 mobile apps across event, education, social, and crypto sectors, serving 1,000+ users on iOS and React Native
- Implemented HMAC-based API authentication across all apps, achieving 100% security audit compliance and eliminating unauthorized access
- Reduced development time by 40% by migrating native iOS codebases to React Native
Things I've built
A selection of production apps I've architected and shipped.
AI-powered fitness app with personalized workouts, meal planning, and calorie tracking.
- Integrated Google's MediaPipe PoseLandmarker for on-device human pose estimation, enabling real-time workout form analysis across 33 body landmarks
- Built an AI-driven engine generating personalized workout and meal plans based on user body metrics, increasing user engagement by 35%
Productivity app helping users block distractions and build healthy habits.
- Built native modules for Android (distraction-blocking overlay) and iOS (Screen Time API), reducing screen-time on blocked apps by 50%
- Contributed to an AI-powered distraction detection module that tracks active app/window context against the user's stated task and nudges them back on track, without ever logging keystrokes or screen content
Corporate mobility platform streamlining employee commutes via automated scheduling.
- Architected a corporate mobility platform using Expo, supporting automated scheduling and recurring ride management for employee transportation
- Designed a resilient background location service that bypasses Android Doze mode and OEM battery optimizations, achieving 100% tracking uptime
Community app for the Albanian diaspora to check live border-crossing wait times, find rideshares between countries, and connect over jobs and housing.
- Built with React Native and Expo, using geofencing to detect proximity to border crossings and prompt travelers for real-time wait-time reports
- Integrated interactive maps to visualize border checkpoints, live queue lengths, and crowdsourced crossing-time estimates
Packages I maintain
Tools I've published for the React Native / Expo community.
Expo config plugin to detect installed apps on Android and iOS.
- Created an Expo module enabling developers to query device-installed apps for feature gating
- Implemented automatic native code injection via Expo config plugin, supporting SDK 51+ with zero manual setup
Real-time pose detection for React Native using MediaPipe BlazePose with GPU acceleration.
- Built a high-performance native module supporting 33 pose landmarks with ~15 FPS real-time detection
- Implemented GPU-accelerated inference for iOS and Android using Vision Camera frame processing
Academic background
Sri Sukhmani Institute of Information & Technology
B.Tech in Computer Science
Dera Bassi, Punjab — Punjab Technical University
Nov 2019
Government Model Senior Secondary School
Senior Secondary (12th)
Sector 8, Chandigarh — Central Board of School Education
2014
Govt. Model Sanskriti Sr. Sec. School
Secondary (10th)
Sector 20, Panchkula — Board of School Education Haryana
2011
Let's build something great together
Discuss a project or just want to say hi? My inbox is open for all.