Software Engineer (Foundation Agents)

• The Foundation Agents team stewards the long-horizon agents powering the Fieldguide AI platform
• We work at the frontier of AI product development: agent knowledge, evaluations, and improving quality and reliability at scale
• Build and maintain agent knowledge and evaluation infrastructure for Fieldguide’s long-horizon agents
• Build our next generation of agents at Fieldguide, solving increasingly complex customer use cases
• Perform error analysis on agent behavior and help turn findings into concrete quality improvements
• Build backend systems that support agent execution, evaluation, and monitoring
• Partner with senior engineers on the team to execute the platform’s reliability and quality roadmap
• Long-horizon agents: working on agents that do real, sustained work and not one-shot demos
• Evaluation as a craft: Evals and error analysis are core to how this team improves quality
• Platform-level impact: Your work shapes the reliability and quality of every agent built on top of it
• Frontier problems: You’re working on open problems in agent reliability that don’t yet have established playbooks

Benefits

• Health
• Dental
• PTO

• If you’re excited by long-horizon agents that do real-world work, this is the team for you
• You’re curious about evals and error analysis. You want to understand why an agent failed, not just that it did
• You’re comfortable in the backend, with a bias toward reliable systems
• You’re motivated by long-horizon agents that do real work in production
• You’ve built AI products, not just called an LLM API
• Backend engineering experience
• Hands-on experience building AI products
• Working knowledge of evals and error analysis
• Platform engineering skills
• Frontend experience
• Distributed systems experience