Blockchain and mobile engineer building financial infrastructure for Africa — self-custodial wallets, stablecoin rails, and cross-border payment primitives. Also a defence-tech field engineer supporting British Army simulation exercises in Kenya.
🏦 Flagship project — nana.money · Live on Google Play
Self-custodial stablecoin wallet for cross-border money transfers across East and West Africa. Built with Flutter + Firebase Cloud Functions (TypeScript) and powered by:
- Key management — Web3Auth MPC (Metamask Embedded Wallets)
- Smart accounts — Safe 1.4.1 with ERC-4337 via Pimlico bundler/paymaster
- Chains — Base · Celo · Polygon · Arbitrum · Linea · Solana · Stellar
- Yield — Blend Protocol savings integration
- KYC — Smile ID (Biometric KYC and Enhanced Document Verification)
| Project | What it is |
|---|---|
| 🔁 Stellar DEX swaps | XLM ↔ USDC via Horizon order book · trustline management · XDR signing |
| 🛡️ ERC-4337 pipeline | Safe smart accounts · UserOp flows · offramp · Pimlico bundler/paymaster |
| 📡 Ajira Pay streaming | Real-time programmable token streaming for payroll on EVM chains |
| 🎯 Defence tech | Field engineer @ Ravenswood Solutions supporting British Army simulation exercises at BATUK |
Client — Flutter · Dart · GetX
Backend — TypeScript · Firebase Cloud Functions · Firestore · Node.js
Chains — Base · Celo · Polygon · Arbitrum · Linea · Solana · Stellar
Infrastructure — Web3Auth MPC · Safe (ERC-4337) · Pimlico · Blend Protocol · Hardhat · Solidity
Earlier stack — Laravel · PHP · Python · TensorFlow · MySQL · AWS
Founder and Lead Blockchain Engineer — Ajira Pay (Aug 2022 – present) Built Nana Wallet from the ground up: multi-chain EVM + Solana + Stellar, ERC-4337 smart accounts, Web3Auth MPC key management, Blend Protocol yield, and KYC via Smile ID. Shipped to Google Play.
Field Engineer — Ravenswood Solutions, Nanyuki (May 2025 – May 2026) Systems and network engineering for defence-tech simulation software used in British Army training exercises (Ex-Haraka Storm 2025 and Haraka Bull Storm 2026) at BATUK, contracted by the British Ministry of Defence.
Blockchain Developer — Laevitas, Remote (Feb 2022 – Oct 2023) Blockchain protocol data integrations into Laevitas, a Singapore-based crypto derivatives analytics platform.
Full Stack Web Engineer — Pesakit, Nairobi (Feb 2021 – Jul 2021) Built field champions dashboard, agent analytics APIs, and an internal HR management platform.
Laravel Developer and Team Lead — Gratitude India, Remote (Jun 2020 – Feb 2021) Led a 5-person multinational team (Kenya, Nigeria, Tanzania, India) building the myglit.com recruiter and job seeker portals.
BSc Computer Science — Masinde Muliro University of Science and Technology (2016–2021) Second Class Honours, Upper Division · Software Engineering major · Chairman, Association of Computing Students (2018–2020)
Machine Learning Internship — Magharibi Innovation Hub, Kakamega (Aug 2018 – Jan 2019) Built a CNN-based maize disease classifier with TensorFlow + Keras (98% training accuracy), deployed to Android using TensorFlow Lite.
Building financial access for the next billion. 🌍