Senior Corporate Security Systems Engineer

Job not on LinkedIn

🕒 March 30

🇺🇸 United States – Remote

💵 $180k - $200k / year

⏰ Full Time

🟠 Senior

⚙️ Systems Engineer

👻 Ghost score 60%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Onebrief

WebsiteLinkedInAll Job Openings

1 - 10 employees

🎖️ Defense

💼 Consulting

🏛️ Government

💰 $21M Venture Round on 2022-10

Defense • Consulting • Government

Onebrief is a platform that enhances and accelerates decision-making, planning, and collaboration, especially within large organizations and governmental bodies. The platform aims to streamline operations and reduce manual processes by offering real-time collaboration, data visualization, specialized workflows, and creative support tooling. Designed by senior planners, Onebrief serves as a hub for users to build plans and products efficiently, with the platform being noted for significantly improving productivity and adaptability. It is used across various networks, including SIPR and JWICS, and is regarded as a transformative tool for organizations such as the National Security Council and the US Army.

📋 Description

• Own and improve enterprise security technologies across EDR, SIEM, MDM, Zero Trust, identity, browsers, and SaaS applications • Deploy, configure, integrate, monitor, and manage the lifecycle of corporate security technologies • Establish and enforce secure configuration baselines across corporate systems • Identify configuration drift and build durable remediation mechanisms • Build API-driven, infrastructure-as-code, or workflow-based automation to connect security systems and reduce repetitive security work • Partner with Corporate IT and application owners to securely deploy and operate endpoints, applications, and SaaS platforms • Improve security telemetry through centralized monitoring integrations • Ensure actionable signals are available to detect vulnerabilities, misconfigurations, and suspicious activity • Translate CMMC 2.0 and NIST-aligned requirements into practical technical controls • Continuously validate controls and produce defensible audit evidence • Become a trusted technical owner for key components of Onebrief’s corporate security stack • Reduce configuration drift and replace manual security and compliance processes with automation • Identify and remediate systemic security weaknesses • Improve continuous control validation and audit-readiness

🎯 Requirements

• 4+ years of hands-on experience in security engineering, enterprise security, systems security, or a closely related technical role • Experience securing identity, SaaS, or Zero Trust environments • Experience building security automation using APIs, workflow automation platforms, infrastructure-as-code, scripting, or configuration-management technologies • Experience deploying, administering, or owning endpoint security and detection technologies such as EDR and SIEM platforms • Experience integrating security telemetry into centralized monitoring • Experience administering MDM or endpoint-management platforms to enforce security configurations and maintain endpoint baselines • Ability to evaluate technical requirements through a security lens, identify configuration risk, and implement practical controls across technical teams • Experience with CrowdStrike, Zscaler, enterprise MDM, identity providers, SIEM platforms, or comparable enterprise security systems • Experience implementing controls aligned with CMMC 2.0, NIST 800-53, CIS STIGs, or similar frameworks • Experience building SaaS or security-platform integrations using REST APIs, webhooks, GitHub Actions, or Okta Workflows • Experience securing corporate environments in regulated, government, defense, or other high-assurance organizations • Must be legally authorized to work in the United States • Onebrief is unable to provide employment sponsorship

🏖️ Benefits

• Equity: Share in the company's success • Remote-first organization with flexible work hours • Unlimited PTO • Health, dental, vision, and life insurance • 401(k) plan with company match • 8 weeks parental leave at 100% regardless of state • Annual company summit trips • $1,000 per year home office budget