Careers

Meridian Labs is a 501(c)(3) non-profit building open source tools for evaluating and understanding frontier AI models. Our flagship project, Inspect AI, was built by our founding team in collaboration with the UK AI Security Institute, and we continue to build and maintain it. Inspect is in use at AI Safety Institutes in the UK, US, EU, Japan, and Korea, and at research organizations including METR, Apollo, Epoch, SecureBio, and RAND. We also build Inspect Scout and Inspect Petri, and we run evaluations ourselves: Petri alignment audits by our team appear in recent Anthropic model cards.

Join us to build the infrastructure the field uses to measure and understand AI systems.

Open Positions

Member of Technical Staff, Engineering

Build the Python libraries and TypeScript/React apps that researchers use to run evaluations and understand model behavior. You’ll own large parts of our open source tools and work directly with the people who use them.

Senior and principal levels · $175,000 – $325,000 · Boston, Bay Area, or London preferred; remote considered

Member of Technical Staff, Research

Build the model-driven parts of our tools: Petri audits, built-in scanners and monitors, transcript summarizers, LLM judges, and scorers and metrics in Inspect. Then measure how well they work and publish what you find.

Senior and principal levels · $175,000 – $325,000 · Boston, Bay Area, or London preferred; remote considered

Don’t see the right role? If you think you could contribute to our work, email jobs@meridianlabs.ai with your resume and a short note on what you’d want to do here.

How We Work

  • Small team, large ownership. With our small team, everyone owns whole systems end to end: design, implementation, tests, docs, and releases.
  • Open source. Most of what we build is public. You’ll review pull requests from outside contributors and ship to users at governments, labs, and research organizations.
  • Direct collaboration with researchers. We work alongside the teams at AI Safety Institutes and research organizations who run evaluations with our tools, so you see how your work is used and hear quickly when something falls short.
  • We use what we build. Our own Petri audits and pre-deployment tests run on our tools, so we find the rough edges before our users do.
  • In person where we can. We prefer in-person or hybrid work in Boston, the San Francisco Bay Area, or London, and we’re open to remote for the right person.

Compensation and Benefits

  • Salary ranges are listed on every posting
  • Health, dental, and vision insurance
  • Flexible time off and leave policy