About this role
ABOUT HUD
HUD https://www.hud.ai/ is building infrastructure to create RL training data and evals for frontier AI agents, as well as a marketplace to sell these to frontier labs through the HUD marketplace. Our platform is used by frontier labs, Fortune 500 companies, and startups. We’ve raised $15M from top VCs and were YC W25.
ABOUT THE ROLE
We’re looking for a full-stack engineer who spikes in front-end to build a polished user experiences for a high-performing product.
RESPONSIBILITIES
- Build and ship end-to-end product features across frontend and backend, with a strong emphasis on user experience
- Translate product and design requirements into high-quality, intuitive user interfaces with strong attention to detail
- Optimize applications for performance, responsiveness, and cross-browser compatibility
- Develop and maintain backend services and APIs that power core product functionality
- Talk directly with customers, understand their workflows, and turn messy real world feedback into product improvements
EXPERIENCE
You may be a good fit if you have:
- Strong experience owning products end-to-end and working across the stack
- Evidence of rapid learning and adaptability in technical environments (e.g., programming competitions)
- A portfolio of shipped products, side projects, or live demos that demonstrate your frontend craftsmanship
- Startup experience in early-stage technology companies with ability to work independently in fast-paced environments
- Familiarity with current AI tools and LLM capabilities
- Strong communication skills for remote collaboration across time zones
Strong candidates may also have:
- A standout portfolio showcasing exceptional UI/UX work, interaction design, or creative engineering
- Experience with reinforcement learning, post-training, or model training workflows
- Familiarity with product analytics tools and experimentation (e.g., A/B testing)
We prioritize technical aptitude and learning potential over years of experience. Motivated candidates are encouraged to apply even if they don't meet all criteria.
TEAM & COMPANY DETAILS
- Team Size: ~15 people currently, mostly full-time in-person, but some remote.
- Our team: Our team includes 4 International Olympiad medalists (IOI, ILO, IPhO), serial AI startup founders, and researchers with publications at ICLR, NeurIPS, etc.
- Company stage: We have 8 figures in funding and high revenue growth. We’re scaling profitably and quickly to meet very strong demand.
LOGISTICS
- Employment: Full-time.
- Location: On-site in the San Francisco Bay Area.
- Visa Sponsorship: We provide support for relocation and visas for strong full-time candidates to the US.
- Timeline: Applications are rolling. The process is 2 technical interviews and a 1-week work trial.
WHAT WE OFFER
- Competitive compensation
- 100% covered top-of-the-line medical, dental, and vision from Blue Shield of CA
- Lunch and dinner when you’re in the office
- Company-wide holiday break (Christmas Eve to New Year’s Day) on top of PTO and paid holidays
- Other perks including an Equinox membership, 401k, and commuter benefits
- Unlimited* access to tokens for ChatGPT, Claude Code, Cursor, etc. *By unlimited, we mean no one on our token usage leaderboard has ever hit a limit. So we have no idea what the limit is.
Due to high volume, we may not actively respond to every application, but feel free to contact us at [email protected] or elsewhere if we missed your application!
HUD https://www.hud.ai/ is building infrastructure to create RL training data and evals for frontier AI agents, as well as a marketplace to sell these to frontier labs through the HUD marketplace. Our platform is used by frontier labs, Fortune 500 companies, and startups. We’ve raised $15M from top VCs and were YC W25.
ABOUT THE ROLE
We’re looking for a full-stack engineer who spikes in front-end to build a polished user experiences for a high-performing product.
RESPONSIBILITIES
- Build and ship end-to-end product features across frontend and backend, with a strong emphasis on user experience
- Translate product and design requirements into high-quality, intuitive user interfaces with strong attention to detail
- Optimize applications for performance, responsiveness, and cross-browser compatibility
- Develop and maintain backend services and APIs that power core product functionality
- Talk directly with customers, understand their workflows, and turn messy real world feedback into product improvements
EXPERIENCE
You may be a good fit if you have:
- Strong experience owning products end-to-end and working across the stack
- Evidence of rapid learning and adaptability in technical environments (e.g., programming competitions)
- A portfolio of shipped products, side projects, or live demos that demonstrate your frontend craftsmanship
- Startup experience in early-stage technology companies with ability to work independently in fast-paced environments
- Familiarity with current AI tools and LLM capabilities
- Strong communication skills for remote collaboration across time zones
Strong candidates may also have:
- A standout portfolio showcasing exceptional UI/UX work, interaction design, or creative engineering
- Experience with reinforcement learning, post-training, or model training workflows
- Familiarity with product analytics tools and experimentation (e.g., A/B testing)
We prioritize technical aptitude and learning potential over years of experience. Motivated candidates are encouraged to apply even if they don't meet all criteria.
TEAM & COMPANY DETAILS
- Team Size: ~15 people currently, mostly full-time in-person, but some remote.
- Our team: Our team includes 4 International Olympiad medalists (IOI, ILO, IPhO), serial AI startup founders, and researchers with publications at ICLR, NeurIPS, etc.
- Company stage: We have 8 figures in funding and high revenue growth. We’re scaling profitably and quickly to meet very strong demand.
LOGISTICS
- Employment: Full-time.
- Location: On-site in the San Francisco Bay Area.
- Visa Sponsorship: We provide support for relocation and visas for strong full-time candidates to the US.
- Timeline: Applications are rolling. The process is 2 technical interviews and a 1-week work trial.
WHAT WE OFFER
- Competitive compensation
- 100% covered top-of-the-line medical, dental, and vision from Blue Shield of CA
- Lunch and dinner when you’re in the office
- Company-wide holiday break (Christmas Eve to New Year’s Day) on top of PTO and paid holidays
- Other perks including an Equinox membership, 401k, and commuter benefits
- Unlimited* access to tokens for ChatGPT, Claude Code, Cursor, etc. *By unlimited, we mean no one on our token usage leaderboard has ever hit a limit. So we have no idea what the limit is.
Due to high volume, we may not actively respond to every application, but feel free to contact us at [email protected] or elsewhere if we missed your application!
Tech stack
LLM
About Human Union Data
Human Union Data is hiring for the full-stack engineer role. NewJob aggregates active openings directly from Human Union Data's applicant tracking system, so this listing is current.
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