I build softwarefrom zero to production.

8+ years across web and mobile in TypeScript, React, and Node.js. Founding engineer at Rivian, building AI product experiences at Tofu and independent projects like Mr. Claw, a real-time algorithmic trading platform whose signals run live on this site.

Chester Hoang
Chester Hoang · Software Engineer
Scroll to explore
01About

I'm a senior software engineer with 8+ years building production web and mobile apps in TypeScript, React, and Node.js. I was a founding engineer at Rivian's Vehicle Services team, where I built the core architecture and CI/CD and helped scale through the 2021 IPO.

These days I build AI product experiences on top of LLMs (content generation, personalization, human-in-the-loop review) as frontend lead at Tofu. On the side I architect Mr. Claw, a real-time algorithmic trading platform whose signal engine powers the live grade board on this site.

Toolkit

TypeScriptReactNext.jsTailwind CSSNode.jsGraphQLPythonReact QueryClaudeCursorCodex

Currently

Senior Software Engineer · Tofu

02Experience
2025–2026
Senior Software Engineer · Tofu
Frontend lead on the ground-up V3 campaign-export rebuild (React/Next.js); built a cross-platform token system unifying HubSpot, Salesforce & Marketo; owned the AI content-generation experience with human-in-the-loop review.
Next.jsTypeScriptReact QueryJotaiLLMs
2023–Present
Independent Software Engineer · Mr. Claw
Built and operate a two-engine algorithmic trading platform (a real-time signal engine and a reproducible backtesting engine), self-managing the full production infrastructure on a hardened Linux VPS.
PythonNode.jsOpenClawVPS
2020–2023
Senior Software Engineer · Rivian
Founding engineer for Vehicle Services: built the core web/mobile apps (React, React Native, Apollo GraphQL) and the architecture + CI/CD the team scaled on through the 2021 IPO; led hiring to 30+ engineers.
ReactReact NativeGraphQLTypeScript
2018–2019
Software Engineer · GLIDR
Built a modular React/Redux/Node app and migrated its REST API to GraphQL to consolidate calls and improve performance.
ReactReduxGraphQLNode.js
2017-2017
Software Engineer · Haystack TV
Led web engineering and built native apps for Vizio, Roku, and Google Cast, driving 60% user growth, and automated QA end to end.
ReactReduxNode.js
2015–2016
Staff Data Analyst · California Dept. of Social Services
Built HCO Track, an in-house app to manage Home Care Organization applications: designed the SQL database and a Visual Basic UI that replaced spreadsheets and processed 5,000+ cases, and rebuilt the department homepage (HTML/CSS/jQuery/AJAX) to cut phone inquiries ~30%.
SQLVisual BasicjQuery
03My Project
Live · stocks & crypto · 1h / 4h / 1d / 1w

A deterministic, market-signal engine.

Mr. Claw scans the market and emits graded setups every hour. Eight boards, refreshing on their own cadence straight from the engine.

Learn more
stocks · 1h2m ago
TJX bullA 85
FSLY bullC 64
JPM bearC 64
C bullD 25