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Senior Software Engineer, Agents (Foundation Agents)

San Francisco, CA💼 Full-time🗓 2026-09-16 → 2026-09-26

Core

Designing and building backend infrastructure for long-horizon AI agents, focusing on evaluation strategies, error analysis, and platform reliability.

Role type

Senior IC software engineer (AI agents & evaluation infrastructure)

Builds

Agent knowledge and evaluation infrastructure, backend systems for agent execution and monitoring

Domain

Artificial Intelligence / Agent Systems / Cybersecurity & Financial Audits

Deliverable

production ML models | infrastructure

Required skills

backend engineering, agent development, evaluation strategy design, error analysis, platform system ownership, mentorship

Preferred skills

platform engineering, frontend development, distributed systems

Technologies

(none explicitly listed)

Responsibilities

Design and build agent knowledge and evaluation infrastructure; Lead error analysis on agent behavior to drive reliability improvements; Build and harden backend systems supporting agent execution and monitoring; Shape the team's evals strategy and error-analysis practice; Mentor engineers on eval rigor and error analysis; Drive the AI platform's reliability and quality roadmap

Seniority

Senior, hands-on IC with mentorship responsibilities

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