Parsue Choi

Hi, I'm Parsue Choi, a Senior Programmer, Full-Stack Developer, Indie Game Developer, and 2D/3D Artist based in Hong Kong. My journey into software engineering has been shaped by an unconventional, self-taught path spanning business, art, and technology. This diverse background allows me to bring a unique, holistic perspective to every system I architect and every line of code I write.

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🚀 The Journey: From Zero to One

My passion for technology started early. At age 10, I wrote my first software program on an 80286 PC, learning Basica from a tech magazine to build a Karaoke program that was subsequently published. Although I later graduated on a business track, my career has always been driven by a relentless drive to challenge the unknown and self-teach system design.

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Before transitioning into full-time development, I spent years mastering business operations, accounting, and creative arts. These varied experiences deeply enriched my engineering philosophy:

• Efficiency & Business Acumen (1996): As an Accounting Clerk at Vitasoy, I engineered a custom semi-automated workflow using Excel VBA to parse raw server data. This slashed my own 10-day workload to 2 days and ultimately reduced the department's month-end closing from 24–27 days to just 7 days—solving a critical bottleneck the 8-person internal programming team insisted was impossible.

• Workflow Optimization (2003 & 2011): In logistics, I digitized mid-stream document workflows and built a highly efficient Container Stowage Plan. Later at Tak Kee Petroleum, I redesigned a comprehensive fuel-card system handling multi-vendor integrations, automated commissions, debt processing, and automated statement generation.

• Creative Execution (2015–2020): I bridged my technical skills with creative content by launching a part-time game development and art venture. This led to invitations as an art exhibitor, a hardware sponsorship from XP-Pen, and an Editor's Choice award for my mini-game.

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In 2021, building on these successes, I fully transitioned into full-time software and game development.

 

🛠️ Solo Full-Stack Development & Unity Expertise

Most recently, I have operated as a solo developer, building and launching multiple software projects completely from scratch. I specialize in engineering robust, full-stack architectures centered around Unity, seamlessly integrating:

• Frontend & Web: Astro, Tailwind CSS, and responsive web pages.

• Backend & DB: API servers built with .NET (.NET 9) and databases (MySQL / PostgreSQL).

• Infrastructure & Security: Secure local environments (mkcert), local/cloud Asset Bundles, and desktop applications (.NET WPF).

• Advanced Integrations: Computer Vision (OpenCV / Pupil Chase eye tracking), QR code systems, and Unity ECS/DOTS for performance optimization.

 

🤖 AI Workflow & "Vibe Coding" Mastery

I have always stayed at the absolute forefront of the AI revolution. In 2023, at the very beginning of the generative AI wave, I designed and developed AI-related workflows for art and photo generation. By 2025, I expanded into building custom AI Agents, RAG (Retrieval-Augmented Generation) systems, and MCP (Model Context Protocol) Servers for business use.

 

Over the past two years, I have deeply integrated "vibe coding" (AI-assisted development) into my daily workflow. Rather than just using AI as a basic tool, I treat it as an engineering partner. I possess practical expertise in:

• Structuring complex, multi-agent AI workflows.

• Managing context configurations and system prompts to ensure robust, production-grade code.

• Optimizing token usage and API costs while maintaining rapid development velocity.

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This approach allows me to delegate repetitive tasks to AI, freeing my focus to solve complex architectural challenges, design editor tools that bridge the gap between artists and programmers, and build scalable systems from zero to one.

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Throughout my career, I’ve cultivated a rare blend of technical expertise, creative skills, and business acumen. Whether I am writing clean C# code, designing intuitive UI/UX, or deploying full-stack AI agents, I ensure every project I touch is innovative, highly efficient, and deeply user-focused.