AI Platform Engineer — Long-Horizon Agents & Evals

Fieldguide; San Francisco (CA); On-site; USD 190,000 - 220,000; Full time

Benefits offered by this job

Equity compensation

Health benefits

Flexible time off

Tech reimbursements

401(k) plan

In-person offsites

Wellness benefits

Job summary

Fieldguide is hiring for a role on the Foundation Agents team in San Francisco. You will own and evolve AI agents, focusing on long-horizon capabilities that perform real-world tasks and scale reliability across production systems.

The role emphasizes hands-on AI product development, robust evals, and backend engineering to ensure quality and platform stability. Competitive compensation with equity and in-person offsites across the U.S. are offered.

Qualifications

• Hands-on experience building AI products.
• Working knowledge of evals and error analysis.
• Backend engineering experience.

Responsibilities

• Build and maintain agent knowledge and evaluation infrastructure for Fieldguide's long-horizon agents.
• Build the next generation of agents at Fieldguide to solve complex customer use cases.
• Perform error analysis on agent behavior and translate findings into quality improvements.
• Build backend systems that support agent execution, evaluation, and monitoring.
• Partner with senior engineers to execute the platform's reliability and quality roadmap.

Skills

Hands-on AI products

Evals & error analysis

Backend engineering

Job description

Fieldguide is hiring for a role on the Foundation Agents team in San Francisco. You will own and evolve AI agents, focusing on long-horizon capabilities that perform real-world tasks and scale reliability across production systems.

The role emphasizes hands-on AI product development, robust evals, and backend engineering to ensure quality and platform stability. Competitive compensation with equity and in-person offsites across the U.S. are offered.