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Software Engineer - Evals

Palo Alto, CA💼 Full-time💰 $175,000–$175,000🗓 2026-07-22 → 2026-09-26

Core

Design, build, and ship mission-critical research platforms and evaluation instruments to measure AI model capabilities, behaviors, and training growth.

Role type

Software Engineer - Evals

Builds

Evaluation infrastructure, datasets, grading schemes, and internal tools for xAI's frontier research.

Domain

Artificial Intelligence / Machine Learning / Research Infrastructure

Deliverable

production ML models | product features

Required skills

Software engineering, first principles reasoning, product taste, attention to detail, rapid prototyping, system design

Preferred skills

AI/ML workflows, annotation tools, evals, component libraries, design systems

Technologies

None explicitly stated

Responsibilities

Create and execute instruments for measuring model capabilities and behaviors; diagnose agent failures and design improvements; manage execution infrastructure; design datasets and grading schemes.

Seniority

All levels (New Grad to Senior)

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