Xun Sun (Alex)

emailme@xsun.work
phone+61 0434570098
languagehttps://xsun.work

Summary

Full-Stack Developer & DevOps Specialist: 5+ years of experience delivering 20+ high-impact projects for industry leaders including Tesla, Nissan, YanFeng and CASIC. Expert in building scalable cross-platform applications with end-to-end DevOps support and proven excellence in technical leadership.

AI Engineer & Researcher: Experience spans reinforcement learning, fine-tuning, synthetic data construction, and AI agent building. Passionate about trying the latest SOTA AI techs and building useful AI solutions. An active contributor with monthly token consumption $1,000+ using Claude MAX.

Education

Monash University
Feb 2025 - Nov 2026 (Expected)
Master of Artificial Intelligence
GPA 3.86/4.0, WAM 87.57 for now
Suzhou University of Science and Technology
Sept 2016 - Jun 2020
Bachelor of Computer Science
GPA 3.0/4.0

Technical Skills 

AI:          Context Engineering, A2A, MCP, Skills, RAG, PyTorch, LangGraph, Vertex AI, 
             Agent Memory, Groq, Ollama, RLHF, RLVR, Knowledge Distillation
Frontend:    TypeScript, React, Next.js, Vue, Tailwind, PWA, Micro-frontend, Capacitor.js
Backend:     Prisma, FastAPI, NestJS, SpringCloud, PostgreSQL, MongoDB, Redis, RabbitMQ
DevOps:      AWS, GCP, Cloudflare, Supabase, Firebase, Github Actions, Docker, Kubernetes

Experience

Monash Vacation Research Scholarship Program

Monash University, Melbourne, Victoria, Australia
Nov 2025 - Jan 2026, Full Time

I designed and developed an AI-driven generative system for 3D-printed footwear. Core components include a high-precision foot scanning app, an AI engine for parameter-driven shoe last generation based on foot morphology, an automated Rhino workflow for upper and sole optimization, and an AI algorithm for the automatic generation of lattice structures from shoe models. Paper submission is planned in the near future.

Full-stack Software Developer

Freelance, Melbourne, Victoria, Australia
Oct 2024 - Present, Part Time

Alongside my studies at Monash University, I also delivered several AI Agent projects for AU local businesses owners or Github community, such as the voice customer services agent Ringbot, the open source learning platform Learnify, a customized fire safety report drafting agent, among others.

Senior Software Engineer

Wandeyitong Technology Co., Ltd., Beijing, China
Feb 2022 - Sept 2024, Full Time

Led a 22-member technical team at the R&D Center, reporting directly to the CTO. Implemented agile methodologies, built complete DevOps workflows, developed core features, and introduced AI-assisted programming, achieving over 100% increase in development efficiency and 85% reduction in customer-reported issues.

Software Developer

Wandeyitong Technology Co., Ltd., Beijing, China
June 2020 - Feb 2022, Full Time

I contributed to the development of an independently developed PLM system called Wonder Insight, where I played a key role in the development of many core functions. I also participated in the development of many Siemens Teamcenter projects.

Project

Learnify https://learnify.oiy.ai

Introduction: An AI-powered platform that transforms multi-format content (PDF, Doc, Image, Youtube, etc.) into interactive learning materials including mind maps, notes, flashcards, quizzes, and AI-generated podcasts with real-time 1v1 teaching conversations.

My Contribution: I founded this open-source project and contributed everything, including technical architecture design, feature development, CI/CD pipeline setup, cloud deployment etc.

Tech Stack: Next.js, Prisma, PostgreSQL, GraphQL, LangGraph, Vertex AI, Docker, GCP, Supabase

Ringbot https://ringbot.au

Introduction: An AI voice assistant for effortless reservations. It features low-latency audio responses, natural-sounding voice, support for complex business logic, and seamless integration with phone calls.

My Contribution: Built the prototype with a small team and sold it to a Melbourne startup. Responsible for low-latency audio-to-audio AI, A2A workflow, RAG implementation and DevOps.

Tech Stack: React, webRTC, OpenAI Realtime, LangGraph, Cloudflare, Supabase, PostgreSQL, GraphQL

Light Viewer https://viewer.xsun.work (demo)

Introduction: A cross-platform 3D model viewer for manufacturing with JT format support. Key features include parameter/annotation preservation, efficient BOM-based multi-file rendering (90% time savings), dynamic hot-reload updates, and virtualized rendering for giant models with 100,000+ parts.

My Contribution: Sole developer responsible for the complete architecture and implementation. Served as primary technical liaison with Siemens support team.

Tech Stack: Three.js, WebGL, Vue, Siemens JT Toolkit, Siemens Vis Web, Docker

Wonder Insight

Introduction: A self-developed Product Lifecycle Management (PLM) platform. Benchmarking against Siemens Teamcenter, it covered over 70% of the features and in most features it's faster than Teamcenter. It earned over 10 million RMB in enterprise contracts within the first year after launch.

My Contribution: I'm responsible for the technical architecture, system design, and development of the core features. I also in charge of the agile iteration, weekly public release, and delivery management.

Tech Stack: Micro-frontend, SpringCloud, MySQL, Redis, RabbitMQ, Kafka, Docker, Kubernetes, Jenkins

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