At Scrums.com, I led development of three microservice applications and migrated a legacy application to a serverless architecture, reducing infrastructure costs by 40%. I worked across React, Node.js, and AWS Lambda.
I spearheaded JamiiPesa, a blockchain-powered investment platform, architecting a full-stack system with M-Pesa payments, Kaleido smart contracts, and Smile Identity KYC verification. I also authored onboarding and architecture documentation for engineers working across distributed teams.
I built an AI-powered financial assistant with three-tier query routing and finance-only guardrails. I also wrote the architectural specs that allowed a separate developer to ship its initial version independently.
At LetHub, I led development of a web-scraping feature for rental listings and built a bug triage and documentation system. Earlier, I contributed to a Python-Django application and developed an IoT platform for monitoring infants' sleep quality and posture; I also mentor software engineering students.

