Certificate

• Built full production e-commerce site for a Kenyan electronics retailer • Implemented product catalogue, cart, checkout, and payment integration • Managed both production and staging environments (www.techsoko.co.ke)

Web Developer

• Implemented real-time M-Pesa STK Push payment flow in a live web application • Handled Daraja API OAuth, callback logic, and payment confirmation flow

Back End Developer

• Designed and deployed hospitality website for Tiriki Forest Hotel • Built multi-page Framer site for FixFlow Plumbing including service, blog, and booking pages • Integrated booking systems, M-Pesa payment details, and social media links

Freelance Web Designer

Built an AI-powered exam grading system for university-scale use. • Automated marking of 300–1,200+ student answer scripts per exam cycle • Reduced grading time from multiple days to under one hour • Presented at WIRRIC (Western Innovation, Research & Regional ICT Conference)

Artificial Intelligence Engineer

Built and launched an AI-powered SaaS chat platform for businesses from the ground up. • Designed full product architecture including LLM integration and RAG pipelines • Managed frontend, backend, database, and cloud deployment end-to-end • Delivered a production-grade SaaS product as a solo developer while in university

Founder

Building Better AI products

Know about Okello W's work experience, education, bootcamps, certifications, and much more. Okello W