Sam Mwadime, building as Xamdimek.
I'm a junior-to-mid-level software engineer focused on two things: keeping blockchain systems secure, and helping small businesses run on autopilot with AI.
On the blockchain side, I focus on security — smart contract auditing and identifying the risks that come with shipping on-chain. I've worked directly with protocols like IPFS, Chainlink, and various DEXes, building real systems on top of them rather than just studying them in theory.
On the AI side, I build automation — lead-generation workflows, accounting automations, and agentic systems that let a business's core processes run 24/7 without someone babysitting them.
Quick facts
- 📍 Remote — available worldwide
- 🛡️ Focus — smart contract security & AI automation
- 🎓 BSc Software Engineering, Murang'a University (2023)
- 💼 Available for — freelance / contract
- 💳 Accepts — card & crypto
Experience
BSc Software Engineering
2023Murang'a University of Technology
Blockchain Security & Smart Contract Auditing
Independent work reviewing and auditing smart contracts for security risks, and building on protocols including IPFS, Chainlink, and multiple DEXes — including a live flashloan arbitrage bot (Josa Bot) currently managing client portfolios.
AI Automation for SMEs
Building agentic workflows, lead-generation systems, and accounting automations that let small businesses run core processes without constant manual oversight.
What I work with
Selected clients & testimonials
Building out a client portfolio — testimonials will go here as they come in. In the meantime, see Ozeka and Josa Bot on the homepage for real project work.