Hello, I'm

Temi Williams
Web3 Developer
& Smart Contract
Engineer

Transitioning from 5 years of QA Engineering to building and securing the future of DeFi. I bring a unique security-first mindset to smart contract development and DeFi protocols.

SolidityRustFoundryReactEthereumSolana
Professional Photo

About Me

My journey from QA Engineering to Web3 Development, driven by passion for blockchain technology and secure systems.

My Transition Story

Background: I spent 5 years as a QA Engineer, developing expertise in testing methodologies, automated testing frameworks, and security auditing. This experience taught me the critical importance of thorough testing and attention to detail in software development.

The Pivot: My fascination with blockchain technology and decentralized finance led me to make the transition to Web3 development. I realized that my QA background gives me a unique advantage in smart contract development, where security and reliability are paramount.

Current Focus: I'm building DeFi protocols, smart contracts, and full-stack dApps with a security-first approach. My projects include lending platforms, DEX implementations, and cross-chain applications on Ethereum and Solana.

Future Goals: I aim to become a leading smart contract security expert, contributing to the safety and reliability of the DeFi ecosystem. I'm actively seeking opportunities to work with innovative Web3 teams.

Available for new opportunities

Open to full-time positions, contract work, and freelance projects

Professional Summary

5+ Years QA Experience

Deep expertise in testing methodologies, security auditing, and quality assurance processes

Security-First Mindset

Bringing rigorous testing practices to smart contract development and DeFi protocols

Continuous Learning

Currently enrolled in advanced Web3 bootcamps and contributing to open-source projects

Growing Portfolio

Building production-ready DeFi applications with focus on security and user experience

Unique Strengths

  • Testing mindset applied to smart contract security
  • Experience with automated testing frameworks
  • Strong attention to detail and edge cases
  • Comprehensive documentation practices

Skills & Technologies

A comprehensive overview of my technical expertise, from smart contract development to security testing.

Smart Contract Development

Solidity
Advanced2+
Rust
Intermediate1+
JavaScript
Expert3+
TypeScript
Advanced2+

Frameworks & Tools

Foundry
Advanced2+
Hardhat
Advanced2+
Anchor
Intermediate1+
React/Next.js
Expert3+

Blockchain Platforms

Ethereum
Advanced2+
Solana
Intermediate1+

Testing & Security

Unit Testing
Advanced4+
Integration Testing
Advanced4+
Security Auditing
Learning1+
Fuzz Testing
Intermediate1+

Development Tools

Git
Expert5+
Docker
Advanced3+
GitHub Actions
Advanced2+
Node.js
Expert4+

DeFi Protocols

AMM Development
Advanced1+
Lending Protocols
Advanced1+
Yield Farming
Intermediate1+
Cross-chain
Learning6mo

Continuous Learning Journey

Currently enrolled in advanced Web3 bootcamps, contributing to open-source projects, and staying up-to-date with the latest developments in DeFi and blockchain technology.

Advanced Solidity PatternsRust for BlockchainMEV & DeFi SecurityCross-chain Development

Featured Projects

A showcase of my Web3 development work, featuring DeFi protocols, smart contracts, and security tools.

DeFi

Decentralized Exchange

A fully functional decentralized exchange (DEX) built on Solana using Anchor framework and React. This project provides a complete trading platform with token swaps, liquidity pools, and analytics.

Contract Address:
5hLC8bG9NicQQLHyByQxfoW6n8TjiHqpy3sHURkyUxPW
RustSolanaReactAnchorSolana Web3.js

Key Features:

  • Multi-collateral lending with dynamic interest rates
  • Yield farming integration with LP tokens
  • Comprehensive test suite with 95% coverage
DeFi

Tipping Dapp

This project is a decentralized tipping application built on Solana, enabling users to send SOL tips with messages to other users. The dApp uses an escrow-based system for secure fund management and features a modern React + Vite frontend.

Contract Address:
a6bv3yKJWTqsfQTxzZhUtqVDZ5EZf7rFaPPb2nJ6upc
RustSolanaReactAnchorVite

Key Features:

  • Escrow-based system for secure fund management
  • Message sending with SOL tips
  • Modern React + Vite frontend

More Projects Coming Soon

I'm constantly building and experimenting with new Web3 technologies. Follow my GitHub for the latest updates and contributions.

View All Projects

Technical Blog

Sharing insights from my Web3 journey, technical tutorials, and analysis of the latest blockchain trends.

Featured Posts

Learning Journey
Medium8 min read

QA to Web3: My Journey

How I am making my transition from traditional QA engineering to blockchain development, and the unique advantages my testing background brings to smart contract security.

October 9, 2025
Read More
Learning Journey
Medium15 min read

Learning Rust for Solana: What Two Bootcamps Actually Taught Me

Two bootcamps, four key concepts, and why learning Rust for Solana was easier (and harder) than I expected

October 23, 2025
Read More

Let's Connect

Ready to collaborate on Web3 projects or discuss opportunities? I'd love to hear from you.

Quick Info

Location

London, UK

Availability

Open to opportunities

Response Time

Within 24 hours

Resume

Download my complete resume with detailed experience, projects, and technical skills.

Download Resume

Currently Available

I'm actively seeking new opportunities in Web3 development, smart contract engineering, and DeFi projects.

Full-time positions
Contract work
Freelance projects
Open source collaboration

Ready to Build the Future of Finance?

Whether you're looking for a dedicated Web3 developer, need a security audit, or want to collaborate on an innovative DeFi project, let's make it happen.