AI Engineer

The role

You will build AI-driven product features for customers training and post-training frontier models on the Baseten platform. You will also build internal automation and AI tooling to increase company velocity.

What you will do

• Build and ship agentic product experiences from prototype to GA.
• Design harnesses, execution flows, and guardrails for reliable AI systems.
• Build internal automation and AI tooling for engineering, research, and go-to-market teams.
• Partner with research engineers to turn research workflows into customer-facing features.
• Define and instrument evals to measure output quality.
• Work throughout the stack including API layer, backend, agent orchestration, and frontend.
• Use Baseten's training and inference products to develop intuition around customer workflows.
• Identify and build AI replacements for manual processes across the company.
• Fix bugs and resolve customer issues with urgency.

Required qualifications

• 5+ years of experience building and shipping software applications.
• Demonstrated experience building AI or LLM-powered products, agents, or agentic workflows.
• Strong software engineering fundamentals.
• Ability to build accurate mental models of how systems work under the hood.
• Proficiency in Python.
• Fluency in at least one other language.
• Comfort working autonomously in a fast-moving environment with limited structure.
• Ability to move between customer-facing product work and internal tooling and automation.
• Strong communication skills.

Nice to have

• Experience as a founding engineer or early employee at a startup.
• Experience building evals, agent observability, or tooling for non-deterministic systems.
• Familiarity with agent frameworks and harnesses (LangChain, Claude Code, Codex, OpenCode, MCP).
• Experience with model development methods like supervised fine-tuning, reinforcement learning, synthetic data generation, LoRA, and full fine-tunes.
• Frontend fluency.

Benefits

• Competitive compensation, including meaningful equity
• 100% coverage of medical, dental, and vision insurance for employee and dependents (U.S. only)
• Flexible PTO policy including company wide Winter Break
• Paid parental leave
• Fertility and family-building stipend through Carrot
• Company-facilitated 401(k) (U.S. only)
• Exposure to a variety of ML startups

About the company

Baseten powers mission-critical inference for AI companies by uniting applied AI research, flexible infrastructure, and seamless developer tooling. The company recently raised a $1.5B Series F.