Seyi Ogunjuyigbe

Lead architecture and implementation of payment and wallet systems that settled ₦119.2B in salaries across 49 currencies, 400+ businesses, and 25,000+ employees. Built cross-border payroll rails and restructured systems into microservices.

Built the Earned Wage Access product and employer-facing payroll system. Reduced payroll processing costs by over 20% and employer churn by 15% through workflow automation.

Delivered backend modules for a hospital EMR system including investigation records, pharmacy workflows, discharge summaries, and live clinical chat. Handled strict audit and integrity requirements.

Designed and delivered a JavaScript and Node.js curriculum for 431 students with no prior programming background.

Architected SnappyExchange's cryptocurrency trading backend handling concurrent orders for over 80,000 active users. Built multi-vendor e-commerce backend and travel CRM, and delivered LegalNaija platform.

Engineered APIs for two production platforms: an African travel information service and an investment portfolio application handling dividend processing and portfolio management.

Owned end-to-end delivery for over eight production platforms across healthcare, e-commerce, e-learning, events, and non-profit sectors. Translated client requirements into product decisions.

Completed project management training in October 2015.

Graduated with a Bachelor of Technology in Mechanical Engineering in 2013.