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Posted Apr 1, 2026

Corporate Security Systems Engineer

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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.

Founded in 2019 by a group of experienced planners, today, Onebrief’s team spans veterans from all forces and global organizations, and technologists from leading-edge software companies. We’ve raised $320m+ from top-tier investors, including Battery Ventures, General Catalyst, Sapphire Ventures, Insight Partners, and Human Capital, and today, Onebrief is valued at $2.15B. With this continued growth, Onebrief is able to make an impact where it matters most.

About You

You're a detail-oriented security engineer who understands that strong security comes from disciplined configuration management and consistent enforcement. You're comfortable deploying and managing enterprise security tools, and you know how to translate regulatory requirements into practical technical controls.

You think in terms of baselines and drift. You understand that endpoint hardening, SaaS configuration security, identity controls, browser management, MDM, and Zero Trust are interconnected components of enterprise defense. You're structured in your documentation, disciplined in change management, and motivated by reducing systemic risk through automation.

You work well across teams—partnering with IT, Security Operations, GRC, and application owners to ensure systems are deployed securely and remain compliant over time.

What You'll Do

What We Look For


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.