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Muhammad Haris

@mharis

Senior React Native Developer at Codify who scaled scavenger.ai from ~50 to 37,000+ users and cut scraping time to 48 minutes.

Pakistan

Message

What I'm looking for

Senior React Native developer with 4+ years building mobile and web products end to end. Looking for remote roles, or onsite in Islamabad/Rawalpindi. Scaled a platform from ~50 to 37,000+ users and cut scraping time from 6.5 hours to 48 minutes. Strong in MERN Stack Node.js, Supabase/PostgreSQL, AWS and AI agents.

At Codify, I work across client products including Mymo, scavenger.ai, and Boomi AI. For Mymo, I built real-time GPS monitoring with route playback and geofencing, and added English/Arabic support with an RTL layout.

On scavenger.ai, I took over an AI-generated platform with ~50 users and scaled it to 37,000+. I replaced Apify with a custom scraper that cut processing time from 6.5 hours to 48 minutes across ~450K products, saving the client ~$11K/month.

I also fixed database bottlenecks as the products table grew from 44M to ~1B rows, using indexing, sharding, and Redis caching. At Codify, I built APIs, a logs UI, and AI agents for Boomi AI; across other roles, I built mobile apps and worked on React Native, Node.js, and backend integrations.

Experience

Work history, roles, and key accomplishments

Current

Senior React Native Developer

Current

Codify

Feb 2025 - Present (1 year 8 months)

Worked across multiple client products, including Mymo, Foragers, scavenger.ai and Boomi AI. Built real-time GPS monitoring, geofencing, and RESTful APIs for vehicle tracking; scaled a deal-tracking platform from ~50 to 37,000+ users.

React Native WebSockets Google Maps SQLite REST APIs Redis PostgreSQL AWS Scraping AI Agents

Software Engineer

DynamoLogic Solutions

May 2023 - Nov 2023 (6 months)

Built a report-handling mobile app from scratch with an offline-first approach and push notifications. Translated Figma designs into pixel-accurate UIs and integrated multiple APIs and databases with security measures.

React Native Offline First Push Notifications Figma API Integration Security

React Native Developer

AutoAdvisors

Nov 2022 - May 2023 (6 months)

Diagnosed memory leaks and poor code structure, then refactored the whole app, improving speed and smoothness by 80%. Reduced API calls and re-renders, cached SVG icons, and added unit tests.

React Native Performance Optimization Unit Testing Caching

React Native Developer

Code Frenetics

Apr 2022 - Jul 2022 (3 months)

Built and deployed a cross-platform construction app from scratch two weeks ahead of deadline. Debugged and stabilized the React Native codebase using React.js, Node.js, Express, Material UI, NativeWind, WebSockets and MySQL.

React Native React NodeJS Express Material UI Nativewind WebSockets MySQL

MERN Stack Developer

NESL-IT SMC Pvt

Dec 2021 - Apr 2022 (4 months)

Added a new user role and Stripe integration to an existing React Native app. Gathered requirements with clients on Upwork and Slack.

React Native Stripe MERN Stack Client Communication

IT Assistant

Islamabad, PK

Nov 2020 - Mar 2021 (4 months)

Built front-end interfaces for fee form applications, performed routine IT maintenance, and administered and verified 25,000 applicant records on the PMDC website.

Frontend Development IT Maintenance Data Management

Education

Degrees, certifications, and relevant coursework

COMSATS University Islamabad

Bachelor of Science, Computer Science

2017 - 2021

Activities and societies: Career Partner (Final Year Project): AI-based career counselling mobile app and website with real-time chat and video calls. MoodMirror (AI Project): AI-based mood detection project. Engine Clothing (Semester Project): E-commerce clothing website and mobile app with RESTful CRUD APIs.

Bachelor of Science in Computer Science from COMSATS University Islamabad, completed from 2017 to 2021.