HUD 's mission is to build reliable, fair and open infrastructure for AI data. We want data to be valuable for the people who create it and trustworthy for the labs that train on it. Our team is a quickly growing group of researchers, engineers and operators building the economy that shapes what AI will become. Backed by $16M from top VCs and YC (W25), our marketplace and platform are used by startups, Fortune 500 companies and frontier labs.

On the HUD Platform, AI teams build environments, run agents on tasks, and review traces with our QA agent. DataVendor is a marketplace where vendors sell training data, mostly codebases, to frontier AI labs. You'll join our product and design engineering team, working with our design lead, and own features end to end. You'll find the problem in real usage, design the flow directly in code, connect it to our APIs, and ship it. Compare evaluation runs people actually trust: design the tables and diffs labs rely on when choosing which model to ship.

- Make a two-sided data marketplace feel easy: make listing, estimation, offers and proposals clear for both vendors and buyers.
- Grow the design system as you ship: feed every new surface back into shared primitives and patterns so the next one ships faster.

Ship features to production in Next.js 16, React 19, TypeScript, Tailwind v4, Motion, TanStack Query, Zustand, Clerk, Bun, and a Python/FastAPI backend. From interaction design to API integration, covering complex UX flows, empty, loading and error states.

- Design in code. Our codebase and design-system pages are the source of truth, and Figma is for exploration and brand work.
- Learn from real usage:



watch PostHog session replays, ship behind feature flags, talk to users and our customer-facing team, then improve what you built.
- Work across the API boundary with backend engineers: shape the data a screen needs, and make small changes to our Python services when a feature calls for it, with review.
- Extend each product's design system (they are separate on purpose) and keep a high bar for motion, responsiveness, accessibility and copy.

Have shipped and maintained a product that real people use, and can show what you changed after watching them use it.

- Write production React and TypeScript, and can read, debug and review code yourself, including code your AI tools wrote.
- Have strong interaction and visual judgment for complex, data-heavy tools.
- Are comfortable enough across the stack to integrate REST APIs, reason about data models, and make modest backend changes.
- Use AI coding agents (Claude Code, Cursor, Codex) every day.
- Explain your decisions clearly to engineers, product owners and founders on fast-paced live calls.

Strong candidates may also have: built developer tools, marketplaces or data-heavy products; worked with AI agents,



evaluations or training data; built component libraries or design systems in code; worked at an early-stage startup.

Send a portfolio or links to shipped work; In the first call you'll walk through one thing you shipped: what you personally did, how you learned from users, and what happened after launch. Then a founder interview, then a paid three-day remote work trial in our codebase. The role is full-time with an immediate start.

Team Size: ~25 people currently, mostly full-time in-person, but some remote.

- Our team brings together five International Olympiad medalists across IOI, ILO and IPhO, researchers published at NeurIPS and ICLR, and engineers and researchers from Google DeepMind, Amazon, AWS, Meta, Qwen, GLM, and Mercor. It also includes operators from BCG and Uber, the first security hire at one of the largest crypto exchanges, serial AI startup founders, former quant researchers, artists and the former #1 ranked Catan player in the world.
- Company stage: LOGISTICS
- Employment: Full-time.
- Location: We have offices in San Francisco or Singapore but are open to remote candidates who can work hours that 70-80% overlap with either San Francisco or Singapore time zones.
- Visa Sponsorship: We provide support for relocation and visas for strong full-time candidates to the US or Singapore.
- The process is 2 technical interviews and a 2-3 day work trial.

100% covered top-of-the-line medical, dental, and vision (US and Singapore employees)

- Lunch and dinner for in-office employees
- Company-wide holiday break (Christmas Eve to New Year’s Day) on top of PTO and paid holidays
- Annual travel budget to visit either office

📌 Design Engineer, Labs (Canada)
🏢 Hud
📍 Canada