Software engineering student · Temple University

Netcode, developer tools, and AI evaluation.

I build multiplayer netcode, developer tools, and evaluation pipelines for AI systems. Every project below has a demo you can use.

i

Netcode that holds up under lag

Combat validated against tick-indexed server snapshots, with rate-limiting and lag compensation benchmarked under simulated ping.

ii

Evaluations that catch real failures

Docker-run model evaluations on real repositories, structured failure-mode analysis, and datasets with planted traps.

iii

Tools for people who build

Arboryn merges Roblox object trees, and Trefelle gives engineers a practice space with real code execution and bring-your-own AI.

01Selected work

Projects

Roblox · Netcode · 2024 - Present

Aspirer's Workshop

A Roblox game with 3,000+ visits. I built the combat systems and the client-server networking behind them, including parry fairness across 0 to 400ms of ping.

LuauGit
AI evaluation

VLM Image-Pair Judge

A Python tool that uses vision-language models to judge pairs of AI-generated images against a written rubric.

PythonOpenRouterGeminiOpenAI
02Where I've worked

Experience

Data Annotation Tech

AI Model Evaluator, Software Engineering · Jul 2026 - Present · Remote
  • Configured Docker environments to run AI models against open-source repositories, enabling reproducible evaluation across codebases.
  • Ran model inference and captured execution traces to compare outputs against expected behavior.
  • Documented model errors with structured failure-mode analysis and recommended corrections.
  • Built evaluation datasets and grading rubrics for AI agents, including multi-file synthetic corpora with planted traps across finance, legal, and engineering domains.

Handshake AI

Data Annotator, contract · Nov 2025 - Present · Remote
  • Labeled and rated AI model outputs, including images, against task guidelines.
  • Reviewed AI-generated code and documented issues to support model improvement.

Concilio

Digital Media Specialist · Jun - Sep 2023 · Philadelphia, PA
  • Mentored digital media cohorts across 2 summers and trained users on operating systems and networks.
  • Resolved escalated technical issues through proactive troubleshooting to minimize downtime.

Johnson Real Estate

Apprentice · Jun 2022 - Dec 2024
  • Managed multiple property portfolios and client communication.
03Background

About

Chamar Williams

I'm a computer science student at Temple University in Philadelphia. At work, I test how AI models fail on real code and turn those failures into datasets and rubrics.

Temple University · B.S. Computer Science, 78 credits completed, 14 in progressCommunity College of Philadelphia · A.S. Computer Science
Data Structures and AlgorithmsSystems Programming (C)Operating SystemsProbability and Statistics

Languages

PythonSQLTypeScriptJavaScriptHTML/CSSCC++C#Lua/Luau

AI and evaluation

LLM and agent evaluationRubric designAdversarial datasetsFailure-mode analysis

Engineering

Git/GitHubDockerLinuxNode.jsSupabaseVercelREST APIsClient-server architectureDebugging
Get in touch

Let's build something.

Reach out about roles, projects, or collaboration.