Senior Research Infrastructure Engineer

hud (YC W25)

. Build infrastructure for research on agent behavior, including reliable environment execution, trajectory collection, and evaluation at scale .

Posted 10/23/2026full-timeRemote • California • United StatesSenior💰 $175,000 - $260,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong software engineering fundamentals with proficiency in Python, focusing on building maintainable systems and developing reusable tools and APIs for research infrastructure. Capable of translating research needs into effective software solutions while ensuring experiment reproducibility and efficiency.

Highest-signal resume keywords

Python ProficiencyBackend Services OwnershipResearch Infrastructure DevelopmentDocker and Linux ExperienceReinforcement Learning Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software Engineering FundamentalsAPIs DevelopmentData PipelinesExperiment DesignAsynchronous WorkloadsExperiment ReproducibilityData LineagePipeline Failure VisibilityTechnical JudgmentArchitecture Decisions

Soft Skills

Independent Technical JudgmentCollaboration with Researchers

Tools & Technologies

DockerLinuxCloud InfrastructureDebugging ToolsContainerized Environments

Industry Keywords

Agent Behavior ResearchML PipelinesHigh-Concurrency WorkloadsExperimentation SpeedCost Efficiency

Tech Stack

Tools & technologies

CloudDockerLinuxPython

About the role

Key responsibilities & impact

Build infrastructure for research on agent behavior, including reliable environment execution, trajectory collection, and evaluation at scale
Develop reusable tools, APIs, and pipelines for launching experiments, managing datasets and configurations, and inspecting trajectories and evaluation results
Turn research prototypes and experimental workflows into tested, documented, reusable software
Design experiments to understand model behavior, agent failure modes, and data quality issues
Improve experimentation speed, reproducibility, and cost efficiency through orchestration, observability, and recovery from failed runs
Partner with research and engineering to translate research needs into infrastructure priorities and architecture decisions
Own systems from implementation through ongoing operation
Accelerate research on training and evaluating frontier AI agents

Requirements

What you’ll need

Strong software engineering fundamentals
Proficiency in Python
Record of building maintainable systems used by others
Experience owning backend services, data pipelines, developer tools, or infrastructure from design through deployment and operation
Sound judgment about APIs, data models, asynchronous workloads, and reliability tradeoffs
Comfort with Docker, Linux, cloud infrastructure, and debugging failures across application code and systems
Ability to work closely with researchers and translate open-ended research needs into useful software
Independent technical judgment for prioritization and pragmatic architecture decisions
Working knowledge of reinforcement learning, including environments, rollouts, reward signals, and evaluation workflows may be beneficial
Experience building research infrastructure, ML pipelines, or research productivity tools may be beneficial
Familiarity with distributed job execution, containerized environments, or high-concurrency workloads may be beneficial
Experience improving experiment reproducibility, data lineage, or pipeline failure visibility may be beneficial
Technical aptitude and learning potential prioritized over years of experience

Benefits

Comp & perks

100% covered top-of-the-line medical, dental, and vision for US and Singapore employees
Lunch and dinner for in-office employees
Company-wide holiday break from Christmas Eve to New Year’s Day, on top of PTO and paid holidays
401k with a 4% match
Equinox membership for US employees
Commuter benefits for US employees
Health/wellness stipend for Singapore employees
Unlimited access to tokens for ChatGPT, Claude Code, Cursor, etc.
Annual travel budget to visit either office
Relocation and visa support for strong full-time candidates to the US or Singapore