Software Engineer

Job Summary:

Baton is a company that equips business owners and buyers with a modern, data-driven marketplace for buying and selling businesses. As a Software Engineer, you will work closely with the Head of Engineering and product team to build AI-driven systems that enhance the buying and selling experience for small businesses.

Responsibilities:

• Ship full-stack AI features end to end — from scoping with stakeholders to deploying agentic systems that solve real problems for buyers and sellers
• Own 0-to-1 projects, collaborating with our sales & operations teams to identify high-leverage opportunities and build intelligent capabilities
• Build and improve agentic infrastructure that supports production-level inference, evaluation, and monitoring
• Work across the stack to integrate AI seamlessly into our marketplace, creating clean interfaces that make intelligent features feel native to the product
• Develop tools and systems that scale — from intelligent matching to document understanding and agentic workflows that transform our marketplace

Qualifications:

Required:

• Shipped and owned production AI systems end-to-end (LLM and/or classic ML) — real users, measurable outcomes, operational responsibility
• Strong software engineering fundamentals with excellent Python skills and experience integrating foundation models in production
• A track record of shipping — you’ve taken ambiguous problems from concept → production and can point to impact
• Strong product sense — you can be your own product manager when needed, translating business needs into technical solutions without waiting for a spec
• Comfort in ambiguity — you thrive with limited structure and turn uncertainty into clarity

Preferred:

• Experience with modern AI frameworks and building multi-step agentic systems with tool use, planning, and human-in-the-loop patterns
• Experience designing evaluation suites for LLM systems (offline + online), including rubric-based and model-graded evals
• Experience operating LLM systems at scale—latency, cost, caching, fallbacks, rate limits, reliability
• Familiarity with retrieval quality work—chunking, reranking, query rewriting, relevance tuning
• Marketplace, platform, fintech, or small business background with understanding of matching algorithms or business transactions
• Familiarity with Go, GraphQL, or React/TypeScript
• Background in NLP, information retrieval, or recommendation systems

Company:

Baton is a marketplace for small business sellers and buyers. Founded in 2021, the company is headquartered in New York, USA, with a team of 11-50 employees. The company is currently Early Stage.