Software Engineer

The role

You will build and ship full-stack agentic AI systems to power a marketplace for buying and selling small businesses. You will work across the full loop from problem framing to deployment and monitoring.

What you will do

• Ship full-stack AI features end to end
• Own 0-to-1 projects by collaborating with sales and operations teams
• Build and improve agentic infrastructure for production-level inference, evaluation, and monitoring
• Integrate AI into the marketplace across the stack
• Develop tools and systems that scale including intelligent matching and document understanding

Required qualifications

• Shipped and owned production AI systems end-to-end (LLM and/or classic ML)
• Strong software engineering fundamentals
• Excellent Python skills
• Experience integrating foundation models in production
• Track record of shipping ambiguous problems from concept to production
• Strong product sense
• Comfort in ambiguity

Nice to have

• Experience with modern AI frameworks and building multi-step agentic systems
• Experience designing evaluation suites for LLM systems
• Experience operating LLM systems at scale
• Familiarity with retrieval quality work
• Marketplace, platform, fintech, or small business background
• Familiarity with Go, GraphQL, or React/TypeScript
• Background in NLP, information retrieval, or recommendation systems

Benefits

• Market-competitive pay
• Equity
• Fully-covered health benefit options
• Flexible time off
• Commuter perks
• In-office snacks
• Employer contribution for all healthcare options
• 401k plan
• Short-term disability
• Four weeks of paid time off
• Generous sick leave
• Six weeks of flexible Work From Anywhere days

Before you apply

• Send a note with a few bullets on what you’ve shipped (especially production AI systems you’ve owned end-to-end) and what you’d be excited to build at Baton

About the company

Baton equips business owners and buyers with a modern, data-driven marketplace to buy or sell. They are building an AI-native platform to make small business transitions transparent, fast, and fair.