Work Experience
I've been building stuff for about 7 years now - web3 platforms, fintech tools, gaming APIs. Pretty good at cutting costs (20-40%), scaling systems to handle thousands of users, and leading technical teams when needed.
Independent Developer
Current Focus
June 2025 - Present
Right now I'm building things that interest me and solve real problems. Started with Hamwe (helping businesses manage leads and sales), now working on Vibeshift - trying to help Nairobi merchants actually 3x their leads and 2x revenue by cutting ad costs and tracking where customers come from.
Key Achievements:
- •Built Hamwe with some friends - CRM stuff, lead tracking, sales pipeline management
- •Working on Vibeshift now - tracking customer journeys, optimizing ad spend, real-time analytics for local businesses
- •Playing around with Laravel for backend APIs and React Native for mobile apps
- •Getting deeper into blockchain with Solidity smart contracts
- •Learning Go and Rust because why not expand the toolkit
Laravel
React Native
ExpoReact
Next.js
PostgreSQL
Redis
TypeScript
GoLang
Rust
Solidity
BlockchainSenior Full-Stack Engineer
Sweep Games (Remote)
May 2024 - June 2025
Worked on a pretty cool Web3 predictions marketplace where people could bet on streamer content and actually make money from it.
Key Achievements:
- •Built the whole prediction marketplace - NestJS backend, Next.js/React frontend, the works
- •Got Web3 smart contracts working for placing bets, distributing rewards, managing wallets
- •Scaled it to handle 5K+ daily predictions without breaking (99.9% uptime)
- •Cut infrastructure costs by 20% through some smart caching and database optimization
- •Set up our own AWS deployment pipeline which saved us a bunch on cloud costs
- •Built real-time betting with WebSockets so people could see live updates
Viem
Ethers.js
Web3.jsNext.js
Tailwind CSSTypeScriptBlockchainPostgreSQLRedis
NestJS
Node.js
AWSFounder & Technical Lead
Artemis Systems
Feb 2022 - March 2024
Started this to help small businesses in Kenya actually manage their inventory and sales without needing a computer science degree. Ended up serving 100+ businesses.
Key Achievements:
- •Led the team building our retail management platform from scratch
- •Chose Nuxt 3/Vue 3 for frontend, NestJS for backend - worked out pretty well
- •Switched to GraphQL and got 40% better performance than our old REST setup
- •Integrated M-Pesa so businesses could accept mobile money payments easily
- •Built real-time inventory tracking across multiple locations with auto-alerts when stock runs low
- •Designed the whole database to handle 100+ different businesses on the same platform
Nuxt.js
Vue.jsTailwind CSSTypeScript
GraphQLPostgreSQLNode.jsNestJSBackend Engineer
Matrix (Remote)
Nov 2021 - Jan 2024
Built the backend for a gaming platform that connected Minecraft, Roblox, Discord, and Twitch. Pretty complex integrations but super fun to work on.
Key Achievements:
- •Built scalable backend with NestJS and GraphQL that actually held up under load
- •Integrated APIs from Minecraft, Roblox, Discord, and Twitch - each one was its own adventure
- •Got the platform handling 10K+ daily active users with 99.9% uptime
- •Cut server costs significantly through better queries, smarter caching, and cleaning up infrastructure
- •Built real-time event systems for game state sync and user notifications
- •Set up proper API rate limiting and auth for all the third-party integrations
Node.jsNestJSEthers.jsWeb3.jsGraphQLAWSPostgreSQLRedisTypeScriptBlockchain
Java
Python
DockerFrontend Engineer
Beannsofts Limited
Feb 2019 - Oct 2021
Built crypto trading platforms and trading bots. Wild times in crypto - made some pretty sophisticated tools for traders.
Key Achievements:
- •Built web and mobile apps using Angular, React, and React Native for crypto trading
- •Connected Python trading algorithms to the frontend - watching bots trade in real-time was pretty cool
- •Integrated TradingView charts, Binance, and Bybit APIs for live market data
- •Platform grew to 1K+ daily copy traders with 99.9% uptime
- •Built Web3 copy trading features with smart contracts that auto-replicated trades
- •Made front-running detection and sniper bot interfaces that needed sub-second response times
- •Created real-time portfolio dashboards with P&L tracking and risk management
Ethers.jsWeb3.js
Binance APIVue.jsNuxt.jsTailwind CSS
AngularReactReact Native
FlutterSolidityFreelance Developer
Upwork/Fiverr
Sept 2017 - Dec 2018
Did freelance work for various clients - helped me learn a ton about different industries and what people actually need from software.
Key Achievements:
- •Kept a 5-star rating with happy clients
- •Built everything from full-stack web apps to API integrations and blockchain stuff
- •Worked with clients across different time zones and industries
AngularReactReact NativeVue.jsNuxt.jsPythonNode.jsFlutterSide Projects
Once in a while I build tools for myself and friends. Some turn into actual products.
Hamwe
Working with some friends on tools that help businesses manage their leads and sales pipeline. Making it easier to track customer interactions and actually close deals.
- ✓CRM integrations and automation
- ✓Real-time lead tracking
React NativeExpoLaravelTailwind CSSPostgreSQL
Crown Kuins
Built a bunch of digital tools for a Kenyan fashion brand. They needed to track payments across M-Pesa, cash, and bank transfers in real-time, plus manage inventory across their branches. Got it done and cut their inventory mess-ups by 80%.
- ✓No more manual payment reconciliation
- ✓80% fewer inventory errors
- ✓Checkout is 50% faster now
ReactNext.jsNestJSTailwind CSSPostgreSQLVue.js
Charmed
Helped bring this to life - it's a Telegram community sharing digital marketing tips and parenting/entrepreneurship content. Built the bots that deliver weekly tips automatically.
TypeScriptNode.jsNestJS
Image Connections
Built a web app for a telco retailer in Machakos to send airtime bundles quickly. Used to take them 5 minutes per transaction, now it's under 30 seconds.
Next.jsReactNestJSTailwind CSSTypeScriptNode.jsOSS and Community
I maintain some open source projects - mostly developer tools I've used in my own work and figured others might find useful too.