Justin (Zhengtong) Lai
I’m Justin (Zhengtong) Lai, a Master of Artificial Intelligence student at the University of Auckland.
About
I’m Justin (Zhengtong) Lai, a Master of Artificial Intelligence student at the University of Auckland. I enjoy building practical AI systems that combine machine learning, NLP, and LLM workflows with careful evaluation, error analysis, and real-world engineering constraints.
Through projects like AgentGate (AI agent security and evaluation) and an AI-assisted resume evidence screener, I’ve worked hands-on with fine-tuning, RAG, and evidence-grounded pipelines. I also bring software engineering experience from internships and full-stack development work, and I’m especially interested in trustworthy, source-grounded AI that produces auditable outputs.
- 2 years' experience
- Joined September 2026
Languages
- ChineseFluent
- EnglishAdvanced
Industry experience
- Software & Internet
- Education
- Computers & Electronics
- Professional Services
Work experience
Developed and deployed kansaitom.com, a bilingual corporate website using Vue 3, Element Plus, and Spring Boot. Implemented authentication, backend endpoints, SEO, and analytics, with ~62% reduction in the main JavaScript bundle size from recent optimisation work. Provided ongoing website maintenance and improvements.
Optimised C++/Qt event-loop synchronisation for infotainment interfaces supporting Android Auto and CarPlay, reducing screen latency by ~30%. Tuned SQL queries for a Vue 3/Spring Boot ERP platform supporting 50+ staff, improving dashboard load performance by ~20%. Collaborated in Agile sprints and debugged issues across embedded, frontend, and backend components.
Education
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