Open to opportunities

Patrick Adesanya

@gregorian-09

Message

Quantitative Developer building trading systems with HMM signals, backtesting, and live execution.

Nigeria

Message

What I'm looking for

I’m looking for a remote-friendly role where I can build quantitative trading systems end-to-end—signal research to event-driven backtesting and live execution—using strong engineering practices, fast feedback, and measurable risk/performance improvements.

I’m a Quantitative Developer focused on turning market signal research into reliable, production-ready systems. I combine statistical methods like Hidden Markov Models and Kalman filters with event-driven backtesting and risk-aware live execution.

My projects reflect that end-to-end mindset: RegimeFlow pairs regime detection with live integration using the Interactive Brokers TWS API, delivering strong backtest results (Sharpe ratio 1.8, 12% max drawdown). I also build high-performance infrastructure such as a production Point & Figure engine with stable cross-language bindings and sub-millisecond latency.

In my recent work, I migrated production services to Java Spring Boot, improved API throughput by 35%, and strengthened security with OAuth2 and role-based access control. I bring the same attention to correctness—fixing critical data issues, ensuring stable uptime, and automating workflows—to every system I develop.

Experience

Work history, roles, and key accomplishments

IT Intern

African Foundries Limited

Feb 2024 - Aug 2024 (6 months)

Led migration of a production web app from Ruby on Rails to Java Spring Boot, increasing API throughput by 35% and reducing p95 response latency from 480ms to 180ms. Built Spring Boot services for high-frequency ID/QR generation with zero duplicate IDs across 500K+ daily requests and shipped 15+ REST API endpoints with 95%+ test coverage.

Java Spring Boot Spring Security OAUTH2 REST APIs SQL Database Optimization GitHub Actions Docker

Education

Degrees, certifications, and relevant coursework

National Open University of Nigeria

Bachelor of Science, Computer Science

Completed a B.Sc. in Computer Science at the National Open University of Nigeria. Coursework included Data Structures & Algorithms, Numerical Methods, Probability & Statistics, Discrete Mathematics, Operating Systems, and Computer Networks.