Gichoya Macharia

CTO · Web3 · ML · Nairobi

Nairobi · Web3 · ML · Fullstack

I build systems that scale businesses.

CTO @ AvaCertify. I design and ship production-ready Web3, ML, and backend systems — from NFT certification platforms to inventory SaaS used by real businesses.

Tech stack & tools I use in production

PythonFastAPIReactNext.jsSolidityAvalancheMongoDBPostgreSQLDocker

Selected Work

AvaCertify (Web3 Startup)

NFT-based certification on Avalanche

Built smart contracts and backend infrastructure for issuing, verifying, and revoking certificates on-chain. Designed for institutions and scalable credential verification.

Stack: Solidity · FastAPI · IPFS · Avalanche

Inventory Management System

SaaS for retailers & consignment businesses

Built a full inventory + stock tracking system with invoice ingestion, product management, and export tools. Designed for monetization and white-label deployment.

Stack: FastAPI · MongoDB · React

Africura (ML Recommendation Engine)

Travel recommendations across 20 African countries

Trained ML models on TripAdvisor data to deliver personalized travel recommendations. Packaged as an API for tourism platforms.

Stack: Python · ML · FastAPI

Let’s build something useful.

If you need a system that actually works in production — not just a demo — let’s talk.

Get in Touch