Lead Research Engineer, Data Quality

About the role

This is a senior, hands‑on technical leadership role owning the strategy and systems that measure, improve, and scale training data for frontier AI agents. You will sit at the intersection of research and engineering, leading a team that defines what high‑quality agent training data looks like and building the infrastructure to enforce that bar at scale. The work directly shapes the post‑training data that aligns AI models to real‑world tasks.

Key responsibilities

• Lead the data quality team in building evaluation systems across RL environments, synthetic data, benchmarks, and domain‑specific workflows.
• Define data quality strategy by building QC systems, enforcing standards, and designing experiments to grade agent outputs.
• Develop methods for validating synthetic data at scale, including failure‑mode analysis, task mutation checks, and trajectory auditing.
• Partner with research engineers, domain experts, and data vendors to diagnose quality issues and improve data generation workflows.
• Translate qualitative research insights into production systems: validation pipelines, dashboards, internal tools, and feedback loops.
• Help build internal research taste around what makes agent training data realistic, learnable, diverse, reliable, and genuinely useful.
• Mentor research engineers to maintain a high bar for technical rigor, clarity, and execution speed.

Required profile

• 5+ years of experience in research or data quality engineering, specifically building systems for AI/ML data evaluation.
• Demonstrated experience leading technical projects or teams in data quality or AI/ML evaluation, ideally on ambiguous, open‑ended problems.
• Advanced proficiency in Python, Docker, and Linux environments.
• Deep, research‑oriented understanding of AI evals and post‑training processes.
• Experience building QC systems, benchmarks, synthetic data pipelines, validation workflows, or model evaluation infrastructure.
• Ability to reason carefully about what makes training data high‑quality for AI agents.
• Strong written communication skills and ability to explain methodology clearly to researchers, engineers, and external stakeholders.
• Early‑stage startup experience and comfort moving quickly in fast‑paced, resource‑constrained environments.

Required skills

• Python
• Docker
• Linux

What we offer

• Salary range: $150,000 – $180,000 USD per year.
• Visa sponsorship is available.