const rui = {
name: "Rui Jin",
role: "Creative Software Engineer",
location: "Hong Kong",
focus: ["AI / ML", "Web Development", "Automation", "Prompt Engineering"],
currentWork: "Building AI-powered tools and high-performance digital products",
availability: "Open to freelance work and collaborations",
};I am a software engineer with a strong foundation in AI, machine learning, and modern web development. I build products that balance technical reliability, performance, and thoughtful user experience.
My work spans full-stack applications, automation systems, AI integrations, and interactive front-end experiences. I am especially interested in practical LLM systems, production-ready ML workflows, and scalable cloud-based solutions.
- Currently working as an AI/ML Engineer delivering production-focused solutions
- Building experience in LLM systems, agent workflows, and cloud architecture
- Focused on clean implementation, performance optimization, and maintainable systems
- Open to freelance opportunities, collaborations, and product-focused engineering work
|
Languages Frontend Backend and APIs AI / ML Cloud and DevOps |
|
| Period | Role | Company | Location |
|---|---|---|---|
| Mar 2025 - Present | AI/ML Engineer | Self-Employed | Remote, USA |
| Jul 2022 - Jan 2026 | Prompt Engineer | Outlier.ai | Remote, USA |
| Jun 2020 - Dec 2022 | Freelance Software Developer | Upwork | Remote, USA |
| Sep 2019 - May 2020 | Volunteer Web Developer | Non-Profit Organization | Remote, Hong Kong |
| Jun 2018 - Aug 2019 | Intern Software Engineer | Tech Startup | Hybrid, Hong Kong |
Over 5 years of experience building, shipping, and improving software across web, AI, and automation workflows.
Bachelor of Computer Science
City University of Hong Kong | 2016 - 2020
- Graduated with honors
- Completed a thesis on AI-driven web applications
- Active member of the Computer Science Club
| Certification | Issuer | Date |
|---|---|---|
| AI Engineer Professional Certificate | IBM | Mar 2024 |
| Certified Kubernetes Application Developer (CKAD) | CNCF | Jan 2024 |
| Google Cloud Professional Data Engineer | Google Cloud | Sep 2023 |
| AWS Certified Developer | Amazon Web Services | Jun 2023 |
| Meta Front-End Developer | Meta | Dec 2022 |
AI-powered real-time marine object detection from drone footage using computer vision and YOLO-based models.
Stack: Python TensorFlow OpenCV Drone SDK YOLO26
- Real-time object detection and tracking
- High-accuracy computer vision pipeline
- Drone integration for live capture workflows
- Monitoring interface for operational visibility
An AI-based system for protecting Instagram photos from unauthorized use through image recognition and watermarking.
Stack: Python TensorFlow OpenCV Instagram API
- Detection of unauthorized image use
- Watermark-based content protection
- Instagram-related workflow integration
- Dashboard for managing protected assets
Responsive, conversion-focused landing page built for a SaaS product. Repository
Stack: Next.js TailwindCSS React Resend
- Responsive design across devices
- Conversion-oriented layout and calls to action
- Email integration with Resend
- Clean, modern UI focused on clarity and performance
Real-time GitHub data scraper with interactive dashboards for analysis and reporting.
Stack: Python CustomTkinter GitHub API
- Real-time GitHub data collection
- Interactive dashboards for insights
- Desktop UI built with CustomTkinter
- API-based reporting workflow
| Projects Completed | Happy Clients | Years Experience | Client Satisfaction |
|---|---|---|---|
| 50+ | 30+ | 5+ | 100% |
| Service | Description |
|---|---|
| AI Product Engineering | Building AI-powered applications, internal tools, and user-facing products with practical real-world value |
| LLM Integration and Automation | Designing prompt workflows, agent systems, and business automation powered by modern language models |
| Full-Stack Web Development | Developing scalable web platforms with strong UX, clean architecture, and reliable backend systems |
| Computer Vision Solutions | Creating vision-based systems for detection, monitoring, classification, and intelligent image workflows |
I am always open to discussing new projects, freelance opportunities, and collaborations.
- Email: ruijin.ai.dev@outlook.com
- LinkedIn: linkedin.com/in/ruijin9981
- GitHub: github.com/ruijindev0801
- Twitter: twitter.com/ruijin9981
- Location: Hong Kong
- Availability: Monday to Friday, 9AM - 6PM (CST)
- Response time: Within 24 hours
"Code is craft: beautiful, functional, and built to last."