Onebrief is hiring a Manager, Platform Engineering. In this role, you will be the operational owner of the infrastructure layer that enables the company to move quickly and securely. You will lead a team dedicated to building and maintaining the robust suite of shared tools and services that form the backbone for our Product, Engineering, and InfraSec departments.

What You'll Do

Lead, mentor, and grow a team of Platform Engineers by providing direction, removing blockers, and empowering them to own core platform infrastructure and tooling.
Partner with Cybersecurity, Product, and Engineering teams to ensure the platform supports secure, reliable, high-velocity delivery into cloud-native and air-gapped environments.
Drive standards and frameworks for Infrastructure as Code, service onboarding, environment management, GitOps workflows, and overall platform releases.
Ensure observability, reliability, scalability, and cost-effectiveness of the platform; continuously monitor and improve service health, developer feedback, and performance metrics.
Own the operational aspects of the platform team: incidents, responsiveness, After-Action Reviews, runbooks, and continuous improvement of operational maturity.
Act as a key stakeholder in architecture, influencing decisions about how the platform integrates with product, engineering, and operations, and ensuring the platform meets mission needs.

What We're Looking For

5-8+ years of experience in Platform Engineering, DevOps, or Site Reliability Engineering roles, and 2+ years managing engineers.
Strong technical depth with Kubernetes, AWS (or multi-cloud), Infrastructure as Code (Terraform / Ansible) and a track record of building platforms and/or platform services.
Strong understanding of hybrid and air-gapped environments and the challenges they present.
Demonstrated ability to partner with cross-functional teams and to translate high-level requirements into actionable plans.
Skilled in setting and governing operational metrics, SLOs, incident response processes, and platform delivery measures.
Excellent written and verbal communication skills to convey technical direction across multiple time zones.
Ability to obtain Security+ certification within 90 days of hire.

Nice to Have

Ability to obtain a Top Secret with SCI eligibility.
Expertise in GitOps best practices.
Proficiency in Python, Go, and/or TypeScript.
Proficiency with observability stacks (e.g., Prometheus, Loki, Grafana, Alloy, Tempo).
Experience in DoD / DoW, government, or other regulated environments.
Experience with the Risk Management Framework process.
Certifications such as CKA/CKAD, AWS Certified Solutions Architect – Professional, or AWS DevOps Engineer – Professional.