Senior AI Engineer

Role Description

As an AI engineer on the CRAFT (Capabilities, Routing, Adaptation & Fine-Tuning) team, you will bring research into production and build products across our roadmap, including tools for agent evaluation and continuous improvement. You'll own features from the user experience through backend services and model integrations.

You'll turn research in post-training and model evaluation into products that help customers understand and improve their models. We're looking for strong product instincts to translate research methods into intuitive workflows and delightful user experiences.

Beyond your role's specific qualifications, we're looking for strong engineers with great taste. The most important qualification by far is that you learn fast and can ship. You'll work closely with researchers and customers to define problems, make practical tradeoffs, and deliver products in an evolving space.

Although we operate within a larger company, CRAFT is a small team with significant autonomy over our roadmap and priorities.

Required Qualifications

• Bachelor's degree in Computer Science or a related technical field, or equivalent practical experience.
• 4+ years of industry experience in software engineering, with experience building and shipping production applications.
• Strong software engineering fundamentals, including system design, testing, debugging, and production operations.
• Strong product judgment and the ability to work through ambiguous requirements, prioritize effectively, and deliver usable solutions.
• Hands-on experience building LLM-powered applications or AI agents, including tool use and multi-step workflows.

Preferred Qualifications

• Experience designing evaluations for AI systems, including defining success criteria, building test datasets, and analyzing failures.
• Familiarity with LLM post-training workflows, including supervised fine-tuning, reinforcement learning, or distillation.

Wondering if you're a good fit?

• You love defining long-term architecture for systems at global scale.
• You're curious about orchestration beyond SUNK and how to evolve it for next-generation AI.
• You're an expert at mentorship, architecture, and operational excellence across teams.
• You thrive on solving problems that balance cost, performance, and reliability in high-demand environments.

What We Offer

• The range we've posted represents the typical compensation range for this role.
• To determine actual compensation, we review the market rate for each candidate which can include a variety of factors.
• These include qualifications, experience, interview performance, and location.

• In addition to a competitive salary, we offer a variety of benefits to support your needs.
• The benefits below reflect our US-based offerings for full-time employees; for roles in other locations, benefits vary and are shared during the hiring process.
• These include:

• Medical, dental, and vision insurance - 100% paid for by CoreWeave
• Company-paid Life Insurance
• Voluntary supplemental life insurance
• Short and long-term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• Ability to Participate in Employee Stock Purchase Program (ESPP)
• Mental Wellness Benefits through Spring Health
• Family-Forming support provided by Carrot
• Paid Parental Leave
• Flexible, full-service childcare support with Kinside
• 401(k) with a generous employer match
• Flexible PTO
• Catered lunch each day in our office and data center locations
• A casual work environment
• A work culture focused on innovative disruption

• California Applicants
• California Consumer Privacy Act