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Platform Engineer, Application Security

METR· Engineering & Research
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Berkeley, CA$328.4k - $578.6kEmployeePosted 2mo ago

About the role

METR is seeking a Platform Engineer focused on application security to strengthen security across the evaluation platform, sandboxing, cloud infrastructure, networking, and IAM for both people and AI agents. The role combines hands-on engineering with security design to secure a frontier AI evaluation environment.

Responsibilities

  • Securing a unique attack surface: design and build isolation, networking, and permission boundaries for evaluating frontier AI agents.
  • Remediation and hardening: triage and fix vulnerabilities across cloud infrastructure and access control systems.
  • Fixing known vulnerabilities in the codebase: conduct code reviews and resolve vulnerabilities in backlog.
  • Identity and access as a system: design and implement IAM policies, least-privilege access, and automated provisioning and access reviews for people and agents.
  • Securing agentic systems: develop systems to monitor and control agents with appropriate permissions and guardrails.

Qualifications

  • 7+ years of experience in security engineering, software development, or adjacent field.
  • Production software engineering experience building and operating backend or infrastructure.
  • Deep familiarity with AWS (especially non-trivial IAM), Kubernetes, and infrastructure-as-code environments.
  • Vulnerability remediation experience in large production systems and backlog prioritization.
  • Strong security fundamentals across systems, networks, cloud, and identity; experience designing secure software and cloud architectures.
  • Code review experience with the ability to provide constructive security feedback on PRs, including from the FOSS community.

Skills

Required:Security engineeringProduction software engineeringCloud and container securityVulnerability remediationSecurity fundamentalsCode review

Benefits

  • Retirement: 401(k) with a 100% match up to 8% of salary
  • Life Insurance: Employer-paid basic life insurance at 1x salary
  • Time-off and leave: Unlimited PTO and 21-week parental leave for new parents
  • The office: Catered lunch and dinner daily; in-office gym and shower
  • Health: Medical, dental and vision coverage with 99% employee premiums paid; Employer funded HRA; Fertility benefits through Carrot
  • Relocation stipend for moving to the Bay Area
  • Wellness stipend for gym memberships, equipment, therapy, medication, and other wellness expenses
  • Commuter stipend (monthly transit/parking) and annual Uber budget
  • Professional development stipend for training, courses, conferences, AI safety education
  • Work equipment stipend for home office and workstation equipment expenses
  • Management coaching for managers
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About METR

Model Evaluation & Threat Research

METR (pronounced 'meter') is a research nonprofit that scientifically measures whether and when AI systems might threaten catastrophic harm to society.

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