blk://00 — genesis
Collins Caxton — full-stack engineer and smart-contract developer. Payment systems, provably-fair games, and zero-knowledge privacy tools, deployed across Starknet, Stellar, Celo, and Ethereum.
I started as a web developer and followed the money — literally — into smart contracts. Five years on, I ship full products end to end: the interface people touch, the backend that scales, and the contracts that hold the funds.
trust_is_earned
Escrow, multisig, provable fairness — I build systems where users don't have to take anyone's word for it, including mine.
ship_to_mainnet
A demo is a hypothesis. I take products through audits, gas optimization, and real users moving real money.
built_for_the_next_billion
From Naira on-ramps to sub-cent rent settlement, I design for the markets where better financial rails matter most.
privacy_by_default
Zero-knowledge proofs let people transact privately and still satisfy compliance — both sides, by design.
From the button a user presses to the contract that settles the transaction — one engineer, the whole path.
Payment rails, provably-fair games, and privacy infrastructure — each one deployed and running on a real network.
Premium Web3 gaming platform: one wallet and identity across a library of provably-fair games — crash, dice, blackjack, poker, roulette and more. Gasless play via ERC-4337 account abstraction, instant USDC payouts, and on-chain rewards.
Shielded USDC wallet on Stellar. Deposits enter a shared pool; withdrawals prove ownership with zero-knowledge proofs, so balances and histories stay private — with selective-disclosure reports for compliance. Built with Noir for Stellar Hacks: Real-World ZK.
Trustless escrow and dispute resolution. Funds are held in 2-of-3 multisig until both parties approve or a reputation-weighted arbitration ruling settles the case — no custodian, no middleman, immutable audit trail.
Chronological and append-only, like any good ledger — from first website to production payment rails.
2022 — present · Lagos, Nigeria
Caxton EnterpriseFull-time
Leading development of enterprise-scale applications and blockchain solutions — architecture, code review, and mentoring.
2021 — present · Remote
Freelance ConsultantContract
Smart contracts and DeFi protocols for clients worldwide — security audits, gas optimization, and Web3 integration.
2020 — 2021 · Abuja, Nigeria
TechStart SolutionsFull-time
Built and maintained web applications for small and medium businesses, delivering client projects on time and in budget.
2019 — 2020 · Port Harcourt, Nigeria
Digital Innovations LtdFull-time
First professional role: websites for local businesses, frontend fundamentals, and API integration.
Building something that moves money, needs to be provably fair, or has to keep secrets? Tell me about it — I reply within a day.