Judgment Labs

product engineer, agent

Judgment Labs
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4 hours ago

Responsibilities

  • Shape the Judgment Agent to run large-scale parallel investigations across production traces and merge findings into unified results.
  • Build verification infrastructure including hosted simulated environments, stateful agent evaluations, trajectory replay, and monitors for unintended behavior changes.
  • Design interfaces that help engineers understand agent traces, tool calls, decisions, failures, and long trajectories.
  • Create swarm interfaces for monitoring, redirecting, and consuming findings from parallel investigations.
  • Build workflows that turn production trajectories into datasets, judges, and regression checks.
  • Develop platform capabilities for workspaces, roles, permissions, billing, usage, and limits across teams and environments.
  • Build an SDK and terminal-first experience that lets Claude Code, Codex, and OpenCode sessions use Judgment as a subagent.
  • Own product problems end-to-end through customer conversations, product definition, implementation, and iteration.

Requirements

  • Experience building and scaling end-to-end production systems across the data layer and UI.
  • Strong technical problem-solving skills in fast-changing and ambiguous environments.
  • A builder and tinkerer mindset with high agency and a focus on overcoming obstacles and shipping.
  • Hands-on experience building with LLMs or agents, or the ability and drive to develop that experience quickly.
  • Comfort working directly with customers to understand needs and solve real-world problems.
  • Excellent communication skills across technical and non-technical audiences.
Judgment Labs

About Judgment Labs

11-50 employees

The continuous-improvement stack for agents. Monitor and improve your agent's behavior at scale.