Hung-Ming Tsai
Hey! I'm Hungmi. I met Rails when I was a mechanical engineer. I have helped many clients to be way more productive than their competitors. I have experiences with full stack developement in Ruby on Rails, and communications with stakeholders.
Online presence
→ 中文版Experience
- Architected a bilingual rental platform enabling end-to-end online leasing, with collaborative landlord and assistant management.
- Modernized legacy front-end architecture using AI-assisted development to reduce technical debt.
- Led a 4-person IT team remotely, collaborating across a 40-person organization to deliver features, streamline workflows, and grow website traffic.
- Integrated payment, database, and smart metering APIs, including NewebPay, Mypay, Mega Bank, Ragic, and Taiwan Techno Electric.
- Revitalized an underperforming outsourced codebase by optimizing performance and extending the architecture for evolving business needs.
- Rebuilt the Counter-Strike Online official website for the Gamania Group.
- Negotiated with product owners to ensure all requirements are met under great developer experiences.
- Designed APIs to support the new website while also compatible with the legacy data.
- Developed the front end and animations.
- Delaytimer: warm up marketing for a new mobile app by Fourdesire.
- Analyzed the user sessions with Google Tag Manager to prove we have exceed the client's expectations.
- Improved attendees engagement of the online demo day with APIs built on AWS Lambda and DynamoDB.
- Wassup: E-commerce
- Implemented a flexible and refundable subscription service which increases customer retention to the next level.
- Collaborated with a Vue.js developer to provide excellent user experiences under minimum cost, also tested with Capybara to deliver high quality results.
- Improved the work efficiency with customs brokers from few days to few hours.
- Integrated with the current workflow seamlessly and saved 90% cost compared to general industry solutions.
Zuyou: international house rental platform Zuyou
Polish Design: freelance agency Polish Design
Logistic management system
Skills
Web Development
- Technologies: Ruby on Rails 4/5/6/7, Claude Code, Minitest, Bootstrap 3/4/5, Javascript, Scss, Git
- Servers: Debian, AWS, Cloudflare, Tailscale
- Tools:Github, Slack
- Environments:Mac, Linux, Docker