# Chan Kwan Wing (Ken) - Senior Full-Stack Engineer & Tech Lead

> Senior Full-Stack Engineer & Technical Lead specializing in high-performance TypeScript ecosystems (Node.js & Vue.js / Nuxt 3), AI automation, local LLM orchestration (RAG, Playwright, Ollama), and scalable cloud architectures.

## Overview & Current Availability
- Name: Chan Kwan Wing (Ken)
- Current Title: Chief Software Engineer / Tech Lead
- Location: Hong Kong (Open to global remote / hybrid opportunities)
- Availability: Immediate (Available Immediately)
- Email: kenchanjp2024@gmail.com
- Phone: +852 6590 9479
- Portfolio Website: https://kwanwing.me / https://kwanwing.hk
- LinkedIn: https://www.linkedin.com/in/ken-chan-hk
- GitHub: https://github.com/SDCC-Ken

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## Technical Stack & Core Competencies

### Frontend Development
- Languages & Frameworks: TypeScript, JavaScript (ESNext), Vue.js (Vue 3, Nuxt 3, Nuxt 4), HTML5, CSS3, Tailwind CSS v4, Responsive PWA Design.
- Component Design & State: UI Component Libraries (AUI System), Reactive State Management, Micro-Frontend Architecture, SSR / SSG Optimization.

### Backend Development
- Servers & Runtimes: Node.js, Fastify, Express.js, Bun.
- APIs & Middleware: RESTful APIs, OpenAPI / Swagger specifications, WebSockets, JWT Authentication, Microservices.
- ORMs & Databases: Prisma ORM, PostgreSQL (pgvector), MySQL, MSSQL, Redis Caching.

### AI & Automation Engineering
- Autonomous AI Agents: Fastify + LLM Agent Orchestration with tool calling and OpenAPI specifications.
- Retrieval-Augmented Generation (RAG): Secure local & cloud vector search, document indexing, chunking, and similarity search powered by Ollama and PostgreSQL pgvector.
- E2E Automation: Headless browser control & automated workflow pipelines via Playwright.

### DevOps, Infrastructure & Tools
- Containers & Clustering: Docker, Proxmox VE, Linux Cluster Administration.
- CI/CD & Cloud: GitHub Actions, Cloudflare Pages, Nginx.
- Quality & Version Control: Git, Unit/Integration Testing, Performance Benchmarking.

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## Work Experience

### SkyDreamCity Team — Chief Software Engineer
*Apr 2025 – Present* | *Hong Kong / Remote*
- **Role Summary**: Leading technical strategy and end-to-end development of enterprise-grade AI-driven SaaS platforms and PWA web applications for SMEs.
- **Key Accomplishments**:
  - Spearheaded a secure Retrieval-Augmented Generation (RAG) system with Ollama & pgvector for private enterprise document querying.
  - Engineered autonomous AI web automation agents using Playwright and LLM orchestration.
  - Established high-performance full-stack TypeScript architecture (Fastify backend, Nuxt 3 frontend, Prisma ORM).
- **Tech Stack**: TypeScript, Vue.js, Nuxt 3, Node.js, Fastify, Prisma, PostgreSQL, Ollama, Playwright, Tailwind CSS.

### Swivel Software — Head of IT / Hands-on Tech Lead (360 Team)
*Jul 2022 – Apr 2025* | *Hong Kong*
- **Role Summary**: Acted as player-coach leading an agile team of 5 engineers to architect and code "Swivel 360", a flagship B2B Collaborative Logistics Portal.
- **Key Accomplishments**:
  - Successfully modernized legacy logistics platforms into scalable TypeScript, Node.js, and Vue.js microservices.
  - Mentored junior/mid-level engineers, established code review standards, and managed CI/CD pipelines.
- **Tech Stack**: TypeScript, Vue.js, Node.js, Microservices, REST APIs, CI/CD, Logistics Systems.

### Swivel Software — Software Engineer
*Mar 2018 – Jun 2022* | *Hong Kong*
- Developed high-traffic backend microservices and relational database models for enterprise logistics management.
- Promoted to Tech Lead following consistent architectural contributions and delivery of core modules.

### Yakoo Technology Limited — Programmer / Intern
*Jun 2015 – Feb 2018* | *Hong Kong*
- Built responsive client websites, customized CMS platforms, and dynamic web components in PHP and JavaScript.

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## Academic Qualifications

- **Master of Science (MSc) in Software Technology**
  *The Hong Kong Polytechnic University (PolyU)* | 2016 – 2018 (Awarded Mar 2019)
  *Focus*: Advanced Software Engineering, Cloud Systems, Modern Tech Stacks.

- **BSc (Hons) in Applied Sciences (Information Systems & Web Technologies)**
  *School of Professional Education and Executive Development (PolyU SPEED)* | 2014 – 2016 (Awarded Sep 2016)

- **Associate in Information Technology**
  *Hong Kong Community College (PolyU HKCC)* | 2012 – 2014 (Awarded Oct 2014)

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## Key Projects & Showcase

1. **SkyDreamAgent**: Autonomous LLM chatbot controlling Open API Specs for automated purchase order workflows (Fastify + Nuxt 3).
2. **SkyDreamRAG**: Enterprise semantic search and private document QA engine with vector indexing (Ollama + pgvector).
3. **Swivel 360**: Collaborative B2B Logistics Management Portal for global enterprise supply chains.
4. **Backend Packages**: Open-source Fastify TypeScript microservice modules on GitHub (`SDCC-Ken/backend-packages`).
5. **Frontend Package**: Modern Nuxt 4 + AUI component design system (`SDCC-Ken/frontend-packages`).