Emmanuel Joseph
Engineering Lead at Pouchfi · Ex-Wikipedia · Backend, Web2/3, Security, AI
Currently leading engineering at Pouchfi, a stablecoin neobank on BNB Smart Chain. 8+ years shipping production systems, from fintech platforms serving thousands to web3 protocols handling user funds. I work across the full stack: React, Node, TypeScript, Solidity.
If you've searched on Wikipedia recently, you've probably used features I worked on. I helped Fitted.ng secure a $50k grant by rebuilding their technical foundation. I take security seriously, a bug I missed once cost a client $10k, and that failure changed how I build.
Worked with
What I've built
Code Refinery
Open source · Agentic PR review on Claude Code
Runs a security pass and a code-quality pass on every pull request. The agent reads the whole repo with read-only tools, so it can follow a call into the file where it's defined instead of guessing from the diff. Findings come back as schema-checked JSON and get posted as inline comments by its own GitHub App. It came out of my audit work.
View on GitHubLatest Posts
A weekend cleaning up a fintech's AWS migration. What was in the bill, what we cut, and the untested backup that almost cost everything.
Read MoreWhat I Learned Auditing a Solana Prediction Market Protocol
5th January, 2026
I recently completed a security audit for a Solana-based prediction market protocol. Found 17 issues including 2 high severity — vault insolvency from mixed dispute bonds and inconsistent balance checks. Here's what I learned and what other Solana developers should watch out for.
Read MoreHow a $10k Bug Taught Me to Build an AI Security Audit System
17th December, 2025
I missed a race condition that cost my client $10,000. Six months later, that failure helped me catch a critical vulnerability in my own smart contracts before launch. Inside: the 7-prompt AI audit framework I built, 5 prompts you can use today, and the exact bug that would have drained user funds.
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