# AI Engineer

**Company:** [Baseten](https://hotfix.jobs/companies/baseten)
**Location:** San Francisco, CA
**Role:** AI Research
**Salary:** $220k – $260k/yr
**Experience:** 5+ years
**Skills:** Python, LangChain, Claude Code, Codex, Opencode, Mcp, Supervised Fine-Tuning, Reinforcement Learning, Synthetic Data Generation, Lora, Frontend Development, Agent Orchestration, Evaluation, API Development, Backend Development
**Posted:** 2026-08-20

> Build and ship agentic AI product experiences, internal automation, and customer-facing features across the stack. The role requires 5+ years of software engineering experience, hands-on experience with AI or LLM-powered products, Python proficiency, and strong autonomy.

## Job Description

## Responsibilities
- Build and ship agentic product experiences, including chat-style and assistant-like interfaces, from prototype to general availability.
- Design harnesses, execution flows, and guardrails that make AI systems reliable in production.
- Build internal automation and AI tooling that measurably increases the velocity of engineering, research, and go-to-market teams.
- Partner with research engineers to turn internal research workflows into customer-facing features.
- Define and instrument evaluations to measure output-quality improvements.
- Work across the API layer, backend, agent orchestration, and frontend to implement end-to-end features.
- Use the company's training and inference products to develop intuition around customer workflows.
- Identify and replace manual processes with AI-driven solutions.
- Fix bugs and resolve customer issues with urgency.

## Requirements
- 5+ years of experience building and shipping software applications.
- Demonstrated experience building AI- or LLM-powered products, agents, or agentic workflows used by real users.
- Strong software engineering fundamentals.
- Ability to understand how systems, models, and harnesses work under the hood.
- Proficiency in Python and fluency in at least one other programming language.
- Ability to work 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 and ability to bridge technical depth with business needs.

## Nice-to-haves
- Experience as a founding engineer or early startup employee.
- Experience building evaluations, agent observability, or tooling for non-deterministic systems.
- Familiarity with LangChain, Claude Code, Codex, OpenCode, or MCP.
- Experience with supervised fine-tuning, reinforcement learning, synthetic data generation, LoRA, or full fine-tunes.
- Frontend fluency.

## Compensation and benefits
- Competitive compensation, including meaningful equity.
- 100% coverage of medical, dental, and vision insurance for employees and dependents.
- Flexible PTO, including a company-wide winter break.
- Paid parental leave.
- Fertility and family-building stipend through Carrot.
- Company-facilitated 401(k).
- Exposure to a variety of ML startups and related learning and networking opportunities.

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