Software Engineer, Agents (Foundation Agents)

Posted 3 Hours Ago
San Francisco, CA, USA
Hybrid
190K-220K Annually
Entry level
Artificial Intelligence • Software
We Power the People that Power Trust through Agentic Solutions
The Role
Build and maintain knowledge and evaluation infrastructure for long-horizon AI agents. Develop production agents for complex customer use cases, analyze agent errors, and implement quality improvements. Build reliable backend systems supporting agent execution, evaluation, and monitoring, while partnering with senior engineers on platform reliability and quality. The role may also involve platform engineering, frontend work, and distributed systems.
Summary Generated by Built In
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

Skills Required

  • Hands-on experience building AI products
  • Working knowledge of evaluations and error analysis
  • Backend engineering experience
  • Platform engineering skills
  • Frontend experience
  • Distributed systems experience

Fieldguide Compensation & Benefits Highlights

  • Healthcare Strength Health coverage is described as comprehensive across medical, dental, vision, and mental health, with wellness benefits that start day one and a bundle of free therapy sessions on some roles. HSA/FSA options and life/disability insurance are also included in the package.
  • Leave & Time Off Breadth Flexible PTO and flexible work schedules are emphasized, with paid holidays and sick leave noted alongside remote or hybrid options depending on the role. Twice‑yearly in‑person offsites complement the remote setup.
  • Equity Value & Accessibility Meaningful equity/stock options are positioned as a core component of total rewards and appear broadly included across postings. Some roles also indicate performance bonuses in addition to competitive cash compensation.

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The Company
HQ: San Francisco, California
230 Employees
Year Founded: 2020

What We Do

Build the expertise the rest of the industry will follow. 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. We build agentic software for the people who enable trust between businesses. This is where deep professional expertise meets cutting-edge AI. Our team is reimagining how the world's trust is earned, and we're building the people who define how AI works in a domain with real stakes and high data complexity. If you want a career the rest of your industry hasn't caught up to yet, you'll find it here. Backed by top investors including Growth Equity at Goldman Sachs Alternatives, Bessemer Venture Partners, 8VC, Floodgate, and Y Combinator, we are on a growth journey few companies realize.

Why Work With Us

You'll matter here. We're an early-stage company where your work has outsized impact. We've already launched Field Agents, agentic AI that transforms audit and advisory workflows, and we're just getting started. What you build here will be followed by the rest of the industry.

Fieldguide Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

Typical time on-site: Not Specified
HQSan Francisco, California

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