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BioSonic is an AI-driven platform for analyzing bat acoustics used by research teams across Europe. I built the full web portal from scratch and transformed it into a high-performance, scalable system capable of handling multi-terabyte datasets.
My role covered full-stack development, infrastructure optimization, and performance engineering. I optimized Supabase RPCs and SQL queries, achieving 5× faster data retrieval and 240% faster file loading, while stabilizing AWS services to eliminate downtime. I also enhanced the SQS-based job distribution system for parallel data processing and implemented EC2 monitoring tools for better reliability and proactive scaling.
This project showcases my ability to own complex systems end-to-end, improve large-scale performance, and deliver production-ready solutions under tight deadlines, all while maintaining clear communication and client satisfaction.
“Hammad created our web portal from nothing in 3 months, optimized it beyond expectations, and always went the extra mile.” — Josef Carlson
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
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1,000+ permissioned actions. 300+ users. Zero "who can do what" spreadsheets.
Own the Podium manages sports funding for national sports organisations, and the hardest part of the platform wasn't the funding logic — it was that permissions change depending on which stage a file is in. A reviewer can edit in stage 2 and only comment in stage 3.
We modelled access as (role × stage × action) instead of role alone. Boring decision. It's the reason adding a new role or a new stage has never meant touching the access-control code.
Looking for a MERN Stack Developer? Let's build something great together 🚀
Hi, I'm Dev — a MERN stack developer (MongoDB, Express, React, Node.js) currently finishing my degree in Computer Engineering, with hands-on experience building real, functional web applications from the ground up.
I recently designed and built a full company website end-to-end — from front-end UI to backend integration — so I know what it takes to turn an idea into a working product, not just a demo.
What I can help you with:
🔹 Full-stack web app development (MERN)
🔹 Responsive, modern front-ends with React
🔹 REST APIs and backend logic with Node.js/Express
🔹 Database design with MongoDB
🔹 Bug fixes, feature additions, or building from scratch
I care about clean code, clear communication, and actually delivering on time — not just checking boxes. Whether you need an MVP, a full product, or help finishing something that's stuck, I'd love to hear about your project.
📩 DM me or drop a comment — let's talk about what you're building.
#MERN #WebDevelopment #ReactJS #NodeJS #Freelance #HireMe
Super impressive work
Completed my exam-proctoring SaaS — AI-powered exam creation, live proctoring, real-time analytics. Built with Next.js, LLM APIs, and computer-vision-based monitoring.
Supabase makes for a remarkably comprehensive edtech platform! Managing live video streams alongside real time behavioral analytics is no small feat. Exceptional engineering!
