Software Engineer, Agents (Foundation Agents)

fieldguide· Engineering, Product, and Design
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📍 San Francisco, CAFullTime💰 USD 190K–220K

About this role

About Us

Fieldguide is establishing a new state of trust for global commerce and capital markets by automating and streamlining the work of assurance and audit practitioners—specifically in cybersecurity, privacy, and financial audits. We build software for the people who enable trust between businesses.

We're based in San Francisco, CA, and backed by Goldman Sachs Alternatives, Bessemer Venture Partners, 8VC, Floodgate, Y Combinator, and more. Over 50 of the top 100 accounting and consulting firms trust Fieldguide to power mission-critical work.

 

About the Role

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. If you're excited by long-horizon agents that do real-world work, this is the team for you.

 

What You’ll Own

  • 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

Who You Are

  • You've built AI products, not just called an LLM API

  • 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

Experience

Must-have:

  • Hands-on experience building AI products

  • Working knowledge of evals and error analysis

  • Backend engineering experience

Nice-to-have:

  • Platform engineering skills

  • Frontend experience

  • Distributed systems experience

What Should Excite You

  • 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

  • Competitive compensation with equity

  • Comprehensive health and wellness benefits

  • Flexible time off and work schedules

  • Technology reimbursements

  • 401(k) plan

  • Twice-yearly in-person offsites across the U.S.

  • Wellness benefits starting on your first day

Our Values

  • Fearless — Inspire and break down seemingly impossible walls

  • Fast — Launch fast with excellence; iterate to perfection

  • Lovable — Deliver happiness and 11-star experiences

  • Owners — Execute and run the business with ownership

  • Win-win — Create mutual value and earn trust for life

  • Inclusive — Scale the best ideas with inclusive teams

Frequently Asked Questions

What is the salary for the Software Engineer, Agents (Foundation Agents) role at fieldguide?
The listed salary for this Software Engineer, Agents (Foundation Agents) position at fieldguide is USD 190K–220K. This is an FullTime role.
Where is the Software Engineer, Agents (Foundation Agents) position at fieldguide located?
This Software Engineer, Agents (Foundation Agents) role at fieldguide is based in San Francisco, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Software Engineer, Agents (Foundation Agents) role at fieldguide full-time or part-time?
This is listed as a FullTime position. It is posted as a Software Engineer, Agents (Foundation Agents) role in the Engineering, Product, and Design department at fieldguide.
Which team or department does the Software Engineer, Agents (Foundation Agents) at fieldguide belong to?
This Software Engineer, Agents (Foundation Agents) position is part of the Engineering, Product, and Design department at fieldguide. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Software Engineer, Agents (Foundation Agents) position at fieldguide?
Click the "Apply Now" button on this page. You will be redirected to fieldguide's official application portal hosted on ashby where you can submit your application directly.
When was the Software Engineer, Agents (Foundation Agents) job at fieldguide posted?
This Software Engineer, Agents (Foundation Agents) position at fieldguide was posted on Sep 16, 2026. Apply as soon as possible — early applications are often reviewed first.
Software Engineer, Agents (Foundation Agents)
fieldguide · 💰 USD 190K–220K
Apply for this role ↗

You'll be redirected to fieldguide's official application page on Ashby ATS.