Mahfuj Rahman

Builder. Holds Rahman Corp. Time is split between law school, shipping products, and the parts of the business most people skip.

A law student at the University of London International Programme — Common Law Cert HE completed, LLB on track for 2028, Bar Training Course to follow in 2029. Software is built alongside that, not instead of it.

Mafic was started from a simple frustration: most order-flow charting tools are heavy, expensive, and hostile to low-end hardware. Design and development began at 19, aiming for something fast, lightweight, and affordable. Syllables followed from a similar instinct applied to language learning, and Paralegal.ai from wanting to bring the same build-it-yourself approach to legal drafting.

None of these are run the way a traditional multi-company operator would run them. Each is built to stand on its own — different problem, different users, different risk — and Rahman Corp exists so they don't have to compete with each other for a name. None of them are formal business entities yet; they're products being built and shipped under one holding umbrella.

What I've built

2026

Began building Mafic

At 19, started designing a native, Rust-based order-flow charting engine — footprint charts, DOM heatmaps, and live L2 streaming — aimed at being fast and light enough for low-end hardware.

2026

Shipped Syllables

An AI speaking partner for IELTS prep and everyday English, distributed through coaching-center partnerships in Bangladesh with pay-as-you-go pricing.

2026

Started Paralegal.ai

AI-assisted legal drafting — holding a significant stake and building it out as sole developer.

2026

Launched Porter's Post

A free, fully automated weekly tracker of substantive civil common law developments across major common law jurisdictions, built to give students and practitioners a fast way to stay current.

Background

How I work

  • Full-stack: frontend, backend, infra
  • Rust for performance-critical work (Mafic)
  • Cloudflare Workers, Supabase, LLM APIs
  • Ship first, formalize the business later

Outside of building

  • Long-term: commercial law and the Bar, alongside fintech tooling