Projects
Delivered systems with real users, and open-source code behind my research. Each one is labeled by status, so you can tell what is in production from what is a prototype.
Built solo and delivered in 2025. A search that took an afternoon now takes about two seconds.
Rust · Next.js · PostgreSQL
Read the case11operational websites built for organisations, NGOs, startups and SMEs.
What clients say
“Charles redesigned our regional website to be faster, more accessible, and mobile-responsive. He was proactive in suggesting features that would better serve our diverse audience across the continent. The site is now a much more effective tool for sharing our work and engaging with stakeholders.”
“We needed an internal communication tool that integrated with our existing project management stack. Charles built a custom solution that perfectly matched our workflow. He is a clear communicator and delivered the project on time and within budget. I wouldn't hesitate to work with him again.”
“Charles developed a citizen feedback and grievance redressal platform for our local government partners. He focused heavily on accessibility and data visualization, making it easy for officials to see and act on community concerns. The platform has become a key tool for improving accountability.”
“We reached out to Charles to integrate a complex multi-currency payment gateway. He navigated the technical and compliance requirements with ease. The integration was seamless, and we've had zero downtime since going live. His communication was excellent throughout the project.”
A Bayesian Kalman filter that shifts capital across machine-learning, fundamental and behavioral signals. Walk-forward and strictly causal. Out-of-sample backtest, 2000 to 2025: Sharpe 1.02 against 0.54 for SPY buy-and-hold.
A distributed market simulation with six agent types, limit order book microstructure, circuit breakers and quantum-inspired portfolio optimisation. Includes a 2008 crisis scenario.
Multi-stage DCF with Monte Carlo simulation, DuPont ratio analysis, comparable companies and portfolio risk, in a Rust engine with a Next.js interface.
A lock-free price-time priority matching engine in Java 21, with property-tested invariants.
Pre-trade risk checks over gRPC: position limits, circuit breakers and fat-finger detection, with sub-microsecond evaluation.
A zero-copy FIX 4.4 parser in C++20 with compile-time tag validation, hardened with LibFuzzer and benchmarked at wire speed.
A double-entry ledger with hash-chained entries and Merkle balance proofs. Balances always sum to zero.
A prototype FX liquidity mesh across African currency zones (CEMAC, UEMOA, WAMZ, EAC, SADC), with Bellman-Ford arbitrage detection.
A prototype AI agent that reasons over mobile money and onchain rates to choose a cross-border payment route.
Correspondence
Systems engineering, quant work, or infrastructure collaboration. I usually reply within 48 hours.
contact@charlesmfouapon.com
