a16z portfolio
Labelbox
RL data engine for frontier AI labs: environments, preference signals, and evaluation infrastructure for post-training reasoning, tool use, and agent coding models.
10 open roles
Accounts Payable, Spend Management Coordinator
Global Specialized Domain Expert Recruiter (Contractor)
Staff ML Engineer, Agent Training & Environments
Cyber Security Intern
Targeted Recruiting & Onboarding Specialist (Contractor)
Staff Software Engineer, AI Data Platform
Deployment Lead
Forward Deployed Engineering Manager
Forward Deployed Research Scientist
Forward Deployed Engineer, RL Environments