JOSHUA WILLIE
ABOUT ME
Full-stack engineer since 2018. I build scalable web apps, APIs, and smart contracts — from startup MVPs to production systems. I work across the TypeScript ecosystem, cloud infrastructure, and the web3 stack.
STACK
BUILD
what I ship with
- TypeScript
- Rust
- Go
- Python
- Java
- C++
- Next.js
- Node.js
- PostgreSQL
- Tailwind CSS
- Prisma
INFRA
how I ship and run it
- Docker
- AWS
- Vercel
- GitHub Actions
- Cloudflare
- Linux
SPECIALISATIONS
deep expertise areas
- Web3 & DeFi
- Smart Contracts
- ZK Proofs
- DevSecOps
- Systems Programming
Currently exploring: ZK proofs (Circom, Noir).
PROJECTS

Sluice
On-chain protocol built in Solidity.

Cloud Shield
Cloud infrastructure security hardening toolkit.

Best Secondary
Educational platform for secondary school students.
EXPERIENCE
AI Trainer for Coding
Evaluating and rating AI-generated code outputs to improve model quality. Writing prompts, comparing model responses, and providing structured technical feedback across full-stack, systems, and smart contract tasks.
Software Engineer
Building and maintaining web applications and internal tools for the polytechnic. Working across the full stack to deliver features for students, faculty, and administration.
Junior Software Engineer
Developed and maintained full-stack applications for the academy. Built REST APIs, student management features, and contributed to frontend development using React and Node.js.
Freelance Full Stack Developer
Building web applications, APIs, and smart contracts for clients across multiple industries. Managing full project lifecycles from architecture to deployment, including client communication and technical decisions.
AI Trainer for Coding
Evaluating and rating AI-generated code outputs to improve model quality. Writing prompts, comparing model responses, and providing structured technical feedback across full-stack, systems, and smart contract tasks.
Software Engineer
Building and maintaining web applications and internal tools for the polytechnic. Working across the full stack to deliver features for students, faculty, and administration.
Junior Software Engineer
Developed and maintained full-stack applications for the academy. Built REST APIs, student management features, and contributed to frontend development using React and Node.js.
Freelance Full Stack Developer
Building web applications, APIs, and smart contracts for clients across multiple industries. Managing full project lifecycles from architecture to deployment, including client communication and technical decisions.