Site Reliability Engineering Manager

The posting, as Onebrief wrote it

CONSEQUENTIAL WORK. DEDICATED PEOPLE.

ABOUT ONEBRIEF

Onebrief builds collaboration and AI-powered workflow software for military planning and operational coordination.

Military planning is complex by nature, requiring teams to coordinate information, people, and decisions across systems and locations. Onebrief brings planning, collaboration, simulation, and AI into one connected environment, helping teams test strategies, adapt to changing conditions, and make decisions with greater clarity when the stakes are real.

We are a distributed team of builders from military, operational, and technology backgrounds who care deeply about improving how important work gets done. Some team members work remotely, while others work directly alongside customers in operational environments around the world.

Founded in 2019, Onebrief is backed by leading investors including General Catalyst, Battery Ventures, Insight Partners, Sapphire Ventures, and Human Capital. Valued at more than $2 billion, we continue to invest in product innovation, AI capabilities, and team growth.

SECURITY CLEARANCE, LOCATION, AND ONSITE NOTICE

This role requires regularly working on-site at customer locations.

Active Secret clearance required.

ABOUT THE ROLE

We're hiring a Site Reliability Engineering Manager to lead our SRE team within Infrastructure & Security. You'll work closely with platform engineering, application engineering, security, and customer success to ensure Onebrief's mission-critical deployments are reliable, secure, and well supported across on-prem DoD and AWS environments.

You'll lead a team whose work spans customer-facing operations, infrastructure, observability, automation, and application reliability. Most of the team focuses on deploying and operating Onebrief in demanding customer environments.

You'll own the team's priorities, planning, execution, and development. A significant part of this role is coordinating work: understanding demand, balancing capacity, sequencing tasks, managing dependencies, and keeping commitments realistic as customer needs change. You'll help the team deliver immediate operational support while making steady progress on improvements that reduce future support demands.

You'll bring the technical grounding to evaluate risks, ask useful questions, and guide decisions. Your engineers will own technical implementation and lead incident response. You'll provide direction, remove blockers, and create the conditions for them to succeed.

ABOUT YOU

You care deeply about reliability and understand the challenges of operating software in environments where connectivity, access, and deployment options can be constrained. You treat infrastructure and operability as products that deserve clear ownership, thoughtful design, and continuous improvement.

You're an effective people manager who sets clear expectations, gives useful feedback, and helps engineers grow. You build accountability through clear priorities and
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nd on-prem environments: Operating software across AWS or AWS GovCloud and customer-managed infrastructure

• Observability: Monitoring, logging, and actionable alerting using tools such as the Grafana stack, ELK, or Datadog
• Networking and security: Core protocols, secure configuration, and connectivity troubleshooting
• Application reliability: Working with software engineers to diagnose application failures and evaluate infrastructure or code changes

We value depth in relevant areas and the ability to guide specialists across the rest.

BONUS POINTS (NICE TO HAVE)

• Experience leading teams supporting mission-critical customer deployments
• Experience managing engineering programs or coordinating delivery across multiple customer environments
• Experience operating in DoD, classified, or air-gapped environments
• Familiarity with RMF, STIGs, and ICD 503
• Experience implementing SLIs, SLOs, and error budgets for distributed systems
• GitOps practices and toolchains
• On-prem virtualization experience with VMware, Proxmox, Nutanix, Hyper-V, or similar platforms
• Application development experience, especially TypeScript or Node.js
• Relevant certifications, such as AWS DevOps Engineer or CKA/CKAD
• Active Security+ or another DoD 8570.01-approved security credential, or the ability to obtain one within 3 months of employment

Notice to Third Party Recruitment Agencies
Please note that Onebrief does not accept unsolicited resumes from recruiters or employment agencies. In the absence of an executed Recruitment Services Agreement, there will be no obligation to any referral compensation or recruiter fee. In the event a recruiter or agency submits a resume or candidate without an agreement Onebrief explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency. Any unsolicited resumes, including those submitted to hiring managers, shall be deemed the property of Onebrief.