Yiu Lui

Software developer with hands-on experience across web application development, blockchain/smart contracts, and government web systems. Skilled in JavaScript, PHP, React.js, TypeScript, and Solidity, with a track record of maintaining production systems, improving performance, and building AI-assisted tools that streamline team workflows. Strong communicator who collaborates effectively with cross-functional and client-facing teams to deliver reliable, well-documented software.

Programmer at SunnyVision (2026-02 – Present)

• Maintain and enhance a government website using JavaScript, HTML, PHP, CSS, and XML, ensuring reliability and consistent performance for public-facing services.
• Diagnose and resolve production issues, modifying and refactoring code to improve site performance and stability.
• Design and build AI-assisted internal tools using Claude and Cursor to support the development team's workflow and productivity.
• Configure and manage server environments with Nginx, and work with JSON-based data structures for data and API integration.

Independent Project — AI in Finance at Self-Directed (2025-06 – 2026-02)

• Self-studied the application of AI/LLMs in finance and algorithmic trading.
• Built an AI-powered chat tool to support research and iteration on trading ideas.
• Explored using AI to draft and test trading strategies, gaining hands-on experience applying LLM tooling to a real-world, data-driven problem domain.

Software Engineer at KS Lab Limited (2024-08 – 2025-06)

• Developed and maintained scalable web applications and smart contracts using React.js and Solidity, ensuring long-term system stability.
• Integrated a new smart contract into existing systems, expanding platform capabilities and improving overall performance.
• Built reusable React components that significantly reduced development effort across multiple projects.
• Implemented debugging and QA strategies that reduced software defects and increased system reliability.
• Authored software specifications and technical documentation to support compliance and future development.
• Automated deployment pipelines across environments using GitHub Actions.
• Partnered with clients to define specifications and system design, and collaborated with team members to resolve issues and apply engineering best practices.

Contract Junior Programmer at Treasury (2021-10 – 2023-10)

• Worked closely with clients to establish technical specifications and system designs.
• Performed manual testing to validate the scalability and availability of software products.
• Collaborated with cross-functional teams, including UX/UI designers and QA testers, to deliver seamless user experiences.
• Discussed and resolved issues with team members, applying software engineering best practices.

Game Programmer at Fun Town Limited (2018-07 – 2018-08)

• Developed engaging gameplay mechanics using industry-standard programming languages and game design principles.
• Debugged and optimized code to enhance game performance across platforms.
• Incorporated user feedback to refine game features and improve player experience.

Bachelor of Science (Honours) – Technological and Higher Education Institute of Hong Kong (THEi) (2021-12)

Higher Diploma in Game Software Development – Vocational Training Council (VTC) (2019-12)