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Software Engineer (Evals)

xAI

RemoteFull timeMid level$175k – $275kPosted today
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About the role

  • You will own and elevate our mission-critical research platform that directly accelerates SpaceXAI’s frontier work
  • The evals team creates and executes instruments for measuring model capabilities and behaviors. These instruments are used to clean datasets, provide feedback for experiments, and track growth throughout training
  • The evals team also diagnoses why agents fail and how to make improvements both short and long term. We manage the execution infrastructure, design data sets and grading schemes
  • You will design, build, and ship delightful and bulletproof systems that engineers love to use every day. This role values a strong attention to details, first principles reasoning, and great taste

Benefits

  • Health and wellness: Comprehensive health insurance including medical, dental, vision, and disability coverage
  • Life and family: Life and AD&D insurance and fertility benefits to ensure our team’s well-being and peace of mind
  • Flexible vacation: We work hard but avoid burn out. Take time off when you need it
  • Visa sponsorship: We support international talent with visa sponsorship to join our team
  • 401(k) plan: Retirement savings plan to secure your financial future- All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence
  • Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates
  • We are open to all levels from new grads to senior engineers
  • A track record of shipping high quality projects and a strong sense of urgency
  • Strong attention to detail
  • Software engineering proficiency and 3+ years of experience actively writing code
  • Exceptional product taste - you have a sharp sense for what “good” looks like in outputs, and you can translate fuzzy notions of quality, helpfulness, truthfulness, and safety into concrete, measurable criteria
  • Previously founded a startup or joined a fast-growing early-stage startup
  • Familiarity with AI/ML workflows, annotation tools, or evals
  • Experience creating and maintaining component libraries, design systems, or internal tools

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