Principal Infrastructure Engineer

Job Overview

Onebrief is seeking a Principal Infrastructure Engineer to lead the next evolution of our infrastructure. This role owns the long-term health, scalability, and technical direction of the platform.

About Onebrief

Onebrief is collaboration and AI-powered workflow software designed specifically for military staffs. By transforming this work, Onebrief makes the staff as a whole superhuman - meaning faster, smarter, and more efficient. We take ownership, seek excellence, and play to win with the seriousness and camaraderie of an Olympic team. Onebrief operates as an all-remote company, though many of our employees work alongside our customers at military commands around the world.

About the Role

We are hiring a Principal Infrastructure Engineer to lead the next evolution of Onebrief’s infrastructure. This role owns the long-term health, scalability, and technical direction of the platform. You will look beyond the current delivery cycle to anticipate the infrastructure needs of mission-critical applications operating across multiple air-gapped environments. You are a strategic engineer who translates complex Department of War (DoW) constraints into a cohesive technical roadmap. Your work will enable product and engineering teams to deliver reliably across multiple classification levels with minimal friction.

What You Will Do

• Define and execute a one- to two-year technical vision for Onebrief’s infrastructure in partnership with engineering leadership
• Design and evolve a deployment strategy focused on AWS and on-prem environments, with support for partner-hosted deployments in other cloud platforms as required
• Build security and compliance directly into the infrastructure lifecycle through automation and policy-driven systems
• Identify and resolve the most complex technical debt and performance bottlenecks affecting the broader Product and Engineering organizations
• Design and lead the implementation of the next generation of the Onebrief’s platform infrastructure

Required Qualifications

• 10+ years of hands-on experience building and scaling infrastructure systems
• 5+ years of experience in Platform Engineering, DevOps, or Site Reliability Engineering
• Proven experience leading organization-wide infrastructure initiatives and executing roadmaps aligned with business objectives
• Deep experience operating in highly regulated, secure, and/or air-gapped environments, including the Department of War or the Intelligence Community
• Expert-level knowledge of Kubernetes, including multi-cluster design, security, and the broader CNCF ecosystem
• Experience designing enterprise-grade infrastructure-as-code and automation frameworks using tools such as Terraform or Ansible
• Proficiency in Python and Bash for building custom tooling and automation
• Ability to communicate complex technical strategies to engineers and stakeholders and build alignment around long-term architectural decisions
• Willingness to obtain and maintain eligibility for a Top Secret clearance with SCI