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Xuanyi Lyu

Software Engineer & AI Algorithm Developer.

View Work Resume

About Me

Hello, I'm Xuanyi Lyu

I'm an INFJ-T passionate about technology and innovation, with a Columbia University M.S. in Computer Science and a University of Toronto B.S. in Computer Science and Statistics.

My interests center on AI and large language models, including RAG, long-term memory, model integration, and intelligent agent applications.

I'm dedicated to building practical AI systems that connect rigorous machine learning ideas with reliable software engineering and real user needs.

Xuanyi Lyu

Master of Science

Columbia University, New York

2026 - 2027

Bachelor of Science

University of Toronto, Canada

2022 - 2026

Python Java C++ JavaScript React Node.js PyTorch SQL Machine Learning RAG LLM System Design Python Java C++ JavaScript React Node.js PyTorch SQL Machine Learning RAG LLM System Design

Experience

Jun 2025 - Present

Digital Content Trust Traceability and Art Authentication Application Development

Research Assistant | Supervisor: Prof. Daniel Chun
  • Addressed vulnerabilities in traditional C2PA metadata stripping during image compression and screenshots in the AIGC era.
  • Designed and implemented a hybrid provenance framework integrating TrustMark imperceptible watermarking with C2PA content credentials. Proposed a persistent content credential scheme of 'metadata hard binding + watermark soft binding'.
  • Awards & Funding: SREP (Summer Research Exchange Program) Award (20,000 RMB); selected via competitive Centre for International Experience (CIE) nomination.
Jan 2025 – Sep 2025

Full-Stack Loyalty Platform Development for Computer Science Student Union (CSSU)

Web Developer & 1st Place Winner
  • Won 1st place among 61 teams in the Winter 2025 Web Design Contest by overwhelming vote; subsequently invited by Prof. Jack Sun to continue developing the project as the official CSSU loyalty platform.
  • Introduced LLM collaborative development (Vibe Coding) through prompt engineering to translate natural language requirements into technical specs. Developed a full-stack architecture using React.js, Node.js, Express.js, Prisma, and PostgreSQL with CI/CD.
Oct 2016 - Present

Commercial Minecraft Role-Playing Game (RPG) Server

Founder & Operator
  • Launched and scaled an original RPG server from 0 to 1, attracting 10,000+ unique players in total and sustaining 100+ concurrent active users through engaging PvP systems, boss events, and in-game monetization (subscriptions, merchandise).
  • Cultivated a loyal community of daily active users and increased player retention by 55% via targeted feedback loops (e.g., chat groups, in-game mail, polls, and surveys).
  • Designed and developed custom thematic maps, 3D weapon models, lore, and 10,000+ words of scripted narrative, integrated NPC dialogue with LLMs, enhancing player immersion.
  • Drove server growth with digital marketing across TikTok, WeChat, and Minecraft forums, generating 20+ daily sign-ups.

Projects

Minecraft AI
Jan 2026 - Present

Minecraft AI NPC Dialogue Plugin

Built an AI NPC dialogue plugin for Minecraft servers, integrating LLM APIs, embedding APIs, RAG knowledge retrieval, and model-driven long-term memory.

JavaRAGLLM
Minecraft Economy
Jan 2026 - Present

Adaptive Minecraft Server Economy Control Plugin

Designed a self-adjusting economy plugin using player transaction logs, online value discovery, dynamic AMM pricing, and statistical learning.

JavaStatistical LearningAMM
TrustMark
Jun 2025 - Present

Digital Content Trust Traceability and Art Authentication

Designed and implemented a hybrid provenance framework integrating TrustMark imperceptible watermarking with C2PA content credentials.

TrustMarkC2PAW3C DID
CSSU
Jan 2025 – Sep 2025

Full-Stack Loyalty Platform Development for Computer Science Student Union (CSSU)

Introduced LLM collaborative development (Vibe Coding) through prompt engineering. Developed a full-stack architecture using React.js, Node.js, Express.js, Prisma, and PostgreSQL.

ReactNode.jsPostgreSQL
Windmill
Sep 2025 - Dec 2025

Computer Graphics Project: Whispers of the Windmill

Created a rendering system with ray tracing, shader pipelines, and physical animation. Used dynamic BVH acceleration for efficient intersection tests.

C++Ray TracingBVH
OS Project
Sep 2025 - Present

OS User-Level Threading Library

Engineered a user-level thread library in C with cooperative/preemptive multithreading. Built a virtual memory simulator with hierarchical page tables.

CMultithreadingSystems
UTChinese
Sep 2024 - Apr 2025

University of Toronto Chinese Club

Developed a comprehensive web platform for UofT's Chinese student organization, featuring bilingual support and cultural event showcases.

ReactGSAPFramer Motion
Financial App
Sep 2024 - Dec 2024

UX/HCI-Driven Financial Management App

Led formative research through interviews and surveys. Designed and tested prototypes, increasing task success rate by 32%.

FigmaUser ResearchPrototyping
NBA Data
Sep 2024 - May 2025

Statistics and Data Analysis of NBA Players

Led basketball analytics project in R. Built multiple linear regression models with rigorous diagnostics including VIF and Box-Cox transformation.

RStatistical AnalysisLinear Regression
Tetris
Jan 2024 - May 2024

MIPS Assembly Language Tetris Game

Implemented core Tetris mechanics in MIPS assembly, including block generation, movement, rotation, and collision detection.

AssemblyMIPSGame Dev
Todo App
Sep 2023 - Jan 2024

Java-based Todo List App

Implemented "Clean Architecture" and advanced design patterns. Achieved 100% test coverage with JUnit 5 and integrated Todoist API.

JavaClean ArchitectureJUnit 5
Othello
Jan 2025 – May 2025

Intelligent Othello Game Agent

Developed a strategic Othello game with a custom AI using the Alpha-Beta pruning algorithm and dynamic heuristic evaluation.

JavaScriptAI AlgorithmGame Theory

Let's Talk

Email

xuanyi.lyu@mail.utoronto.ca

Location

Toronto, Canada / New York, USA