About the role
What we're looking for:
We need a full-stack engineer with 0-5 years of experience who has shipped production products end-to-end and has a backend lean. You should be comfortable working in a fast-paced, ambiguous startup environment and have a track record of building great software at reputable companies (Series B+ startups or strong tech companies). Bonus points if you have experience with AI agents, developer tools, or observability products.
What you'll do:
- Build core product experiences across the Judgment platform — agent investigation interfaces, eval workflows, trajectory debugging, verification, and replay systems
- Own problems end-to-end: talk to customers, understand where their agents fail, define what should exist, build it, and iterate until it works
- Ship across the full stack with a backend emphasis — APIs, data models, internal systems, and product surfaces
- Build the Judgment Agent and shape how it runs large-scale investigations across production traces
- Design and implement platform systems: workspaces, permissions, billing, usage, SDKs, and terminal-first developer experiences
- Work directly with AI teams building production agents, understand their failures, and turn those into product decisions
About Judgment Labs
Judgment Labs builds infrastructure for Agent Behavior Monitoring (ABM). While traditional observability focuses on logging exceptions and latency, our ABM surfaces behavioral anomalies such as instruction drifts and context retrieval loss in scaled production environments.
Hundreds of teams building autonomous agents rely on Judgment to understand how their systems are behaving post-deployment. Instead of reactive incident triage, they cluster patterns across conversations and workflows, correlate regressions to specific interaction types, and pinpoint where reliability breaks down in their usage context.
We’ve raised $30M+ across two rounds in the past five months. Our investors include Lightspeed, SV Angel, Valor Equity Partners, Nova Global, Chris Manning, Michael Ovitz, Michael Abbott, Cory Levy, Kevin Hartz, and others.
Required skills
Other roles at Judgment Labs
Job details
Salary
$150,000 - $275,000
Location
San Francisco, United States
Experience
0+ years
Funding
Total raised
$30M
Last stage
Series A
Investors
Founders
Joseph Sripramong Camyre
Co-Founder
Alex Shan
Co-Founder & CEO
Andrew Li
Co-Founder
What happens next.
No applications, no recruiter spam. Just the intro.
Confirm the fit
A few questions to make sure this role is the right shape for you. Two minutes.
I pitch you to the company
I write the intro, send it to the founder, and handle the back-and-forth.
A meeting lands on your calendar
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.