Senior Software Engineer, Agents (Foundation Agents)

Fieldguide
San Francisco
Workplace: HybridFull timeUSD 225,000 - 250,000 annuallyFunction: Software EngineeringExperience: 1+ yearsSkills: ["Error analysis","Evaluation","Ownership","Mentorship","Reliability thinking"]

Own evals and error-analysis practices for long-horizon AI agents, shaping how agent quality is measured and improved. Build and harden backend infrastructure for agent execution, evaluation, and monitoring at scale, translating error-analysis findings into platform-level reliability improvements. Partner with the broader AI team on the reliability and quality roadmap, and mentor engineers to raise eval rigor and discipline.

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FursaFursa
Fieldguide
Fieldguide
6 hours ago

Senior Software Engineer, Agents (Foundation Agents)

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 49 minutes agoStatus: Live

Job Summary

Own evals and error-analysis practices for long-horizon AI agents, shaping how agent quality is measured and improved. Build and harden backend infrastructure for agent execution, evaluation, and monitoring at scale, translating error-analysis findings into platform-level reliability improvements. Partner with the broader AI team on the reliability and quality roadmap, and mentor engineers to raise eval rigor and discipline.
Location: San Francisco
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Define and drive eval strategy and error-analysis practices to measure and improve agent quality
  • •Design and build agent knowledge and evaluation infrastructure for long-horizon agents
  • •Lead error analysis on agent behavior and convert findings into platform-level reliability improvements
  • •Build and harden backend systems supporting agent execution, evaluation, and monitoring at scale
  • •Collaborate with the broader AI team and mentor engineers to raise eval rigor and reliability quality

Pay and Benefits

Salary: USD 225,000 - 250,000 annually
Perks:Health InsuranceWellness Stipend401k

Key Requirements

  • •1+ years working specifically on AI agents
  • •Strong experience working on an AI platform
  • •Demonstrated experience building evals and performing error analysis
  • •Backend engineering experience
  • •Strong platform engineering skills
Experience:1+ yearsAIAgentsPlatform engineering
Skills:Error analysisEvaluationOwnershipMentorshipReliability thinking

Company Brief

Fieldguide
Provides an agentic AI platform that automates and manages end-to-end audit, advisory, and compliance engagements for CPA and consulting firms, improving efficiency, margins, and client outcomes.
Industry: Enterprise Software
Company Size: Medium (51 to 250 employees)
Revenue: USD 1M to 5M
Growth: Growth Stage Startup
Funding: Series B
Headquarters: San Francisco, United States
Founded: 2020
Glassdoor
Glassdoor: 4.6
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