Software Engineer - AI Developer Productivity

Baseten; United States; On-site; USD 150,000 - 210,000; Full time

Job summary

Baseten is seeking a Platform Engineer to build the internal AI developer platform. You7ll focus on agent configurations tuned to our monorepo, the context and tooling layer that makes agents competent in our codebase, the evals that tell us which approaches work, and the rollout mechanics that get a new engineer productive with agents in week one.

You are not here to mandate how engineers use AI — you7re here to make the good path the easy path.

Responsibilities

• Own the internal AI developer platform end to end — architecture, build, rollout, operation, meas

Job description

ABOUT BASETEN

Baseten powers mission-critical inference for the world's most dynamic AI companies, like Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma and Writer. By uniting applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing quickly and recently raised our $1.5B Series F, led by Altimeter Capital, Conviction Partners, and Spark Capital. Join us and help build the platform engineers turn to to ship AI products.

THE ROLE

Baseten's engineers want to work in an AI-first way. What's missing isn't enthusiasm — it's the platform underneath it. Today everyone assembles their own agent config, context files, and MCP servers, so the good patterns stay trapped in individual setups instead of becoming defaults everyone inherits. You'll build that platform: the agent configurations tuned to our monorepo, the context and tooling layer that makes agents competent in our codebase, the evals that tell us which approaches actually work, and the rollout mechanics that get a new engineer productive with agents in week one. You are not here to mandate how engineers use AI — you're here to make the good path the easy path. Success looks like teams adopting what you build because it beats what they'd cobble together themselves, not because a policy requires it. Platform engineer, not AI evangelist. Ship infrastructure, measure it, kill what doesn't work, let adoption be the referee. The playbook for AI-first SDLC doesn't exist at any company yet. You'll write ours.

WHAT YOU'LL BUILD

• Agent substrate — Repo-level context infrastructure that makes agents competent in our codebase (CLAUDE.md/AGENTS.md conventions, architecture and domain context, and the tooling to keep it accurate as code moves).
• Internal MCP servers giving agents scoped access to CI, observability, incident tooling, deployment state, and docs.
• Shared skills, subagents, and hooks that encode Baseten workflows.
• Sandboxed environments where agents can build and test safely.
• The golden path — Project templates and onboarding that ship with AI tooling configured and working.
• Self-serve infrastructure so teams build their own agents without you as the bottleneck.
• Gateway, auth, cost controls, and audit logging for internal model access.
• The feedback loop — Eval harnesses that answer "is this config better than that one" against real Baseten tasks, not vibes.
• Instrumentation of AI tool usage and its downstream effects on cycle time, review latency, and change failure rate.
• Honest reporting, including on what you built that didn't pan out.
• Agents in the SDLC — Automation where agents earn their keep: PR review triage, test gap-filling, incident context assembly, migrations and refactors, codebase Q A.
• Integrating agents into CI/CD with guardrails that make it trustworthy.

RESPONSIBILITIES

Own the internal AI developer platform end to end — architecture, build, rollout, operation, meas