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
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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.jsReact NativeNode.jsGraphQLPythonPostgreSQL

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.
ReactGraphQLNode.js
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

The signal board, live.

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

Open the dashboard
stocks · 1h2m ago
TJX bullA 85
FSLY bullC 64
JPM bearC 64
C bullD 25