Research Engineer (General)

The role

Research Engineers will build the technical foundation for training and evaluating frontier AI agents. This involves building systems for creating environments, improving data quality, and translating workflows into tasks and benchmarks.

What you will do

• Build systems for creating, running, evaluating, and improving agent training environments
• Design experiments to understand model behavior, agent failure modes, and data quality issues
• Develop tools that help researchers, engineers, and data vendors create higher-quality tasks, trajectories, and feedback loops
• Work across the full lifecycle of agent training data
• Partner with external vendors to identify bottlenecks and improve data engine quality and throughput
• Build metrics and analyses to understand if tasks, environments, and evals are useful for training frontier agents

Required qualifications

• Proficiency in Python, Docker, and Linux environments
• Experience working on benchmarks and evals
• Strong attention to detail to spot inconsistencies in data, model behavior, or task design
• Experience building tools, pipelines, experiments, or infrastructure without a fully prescribed roadmap
• Early-stage startup experience with ability to work independently in fast-paced environments

Nice to have

• Experience building internal tools, research infrastructure, or data pipelines
• Experience designing metrics and validation workflows
• A background in competitive programming, Olympiad medaling, research, or unusually strong independent project experience
• Thrive in unstructured problem spaces
• Strong communication skills for remote collaboration across time zones

Benefits

• Competitive compensation
• 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
• 401k with a 4% match
• Equinox membership and commuter benefits (US employees)
• Health/wellness stipend (Singapore employees)
• Unlimited access to tokens for ChatGPT, Claude Code, Cursor, etc.
• Annual travel budget to visit either office

Before you apply

• 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

About the company

HUD's mission is to build reliable, fair and open infrastructure for AI data. The team is a growing group of researchers, engineers and operators backed by $16M from top VCs and YC (W25).