Note: The job is a remote job and is open to candidates in USA. Onebrief builds collaboration and AI-powered workflow software for military planning and operational coordination. The Senior Corporate Security Systems Engineer will own and improve the technical security foundations protecting the corporate environment, including endpoints, identity, SaaS applications, browsers, Zero Trust infrastructure, and security tooling. The role also focuses on automation, secure configuration baselines, telemetry, and continuous validation of security and compliance controls.
Responsibilities
- Own and improve enterprise security technologies across areas such as EDR, SIEM, MDM, Zero Trust, identity, browsers, and SaaS applications, including deployment, configuration, integrations, monitoring, and lifecycle management
- Establish and enforce secure configuration baselines across corporate systems, continuously identifying configuration drift and building durable mechanisms to remediate it
- Build API-driven, infrastructure-as-code, or workflow-based automation that connects security systems, eliminates repetitive security work, and makes control enforcement and evidence collection more reliable
- Partner with Corporate IT and application owners to securely deploy and operate endpoints, applications, and SaaS platforms while maintaining appropriate security boundaries and technical controls
- Improve security telemetry by integrating corporate systems and applications with centralized monitoring and ensuring the signals necessary to detect vulnerabilities, misconfigurations, and suspicious activity are available and actionable
- Translate security and compliance requirements—including CMMC 2.0 and NIST-aligned controls—into practical technical implementations that can be continuously validated and supported with defensible evidence
Skills
- • 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 and understanding how configuration decisions affect enterprise security
- • 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, including 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 risk in proposed configurations, and work across technical teams to implement practical controls without losing sight of the security objective
- • Experience owning or administering technologies such as CrowdStrike, Zscaler, enterprise MDM, identity providers, SIEM platforms, or comparable enterprise security systems
- • Experience implementing technical controls aligned with CMMC 2.0, NIST 800-53, CIS STIGs, or similar security frameworks
- • Experience building integrations between SaaS or security platforms using REST APIs, webhooks, or automation platforms such as Github Actions or Okta Workflows
- • Experience securing corporate environments in regulated, government, defense, or other high-assurance organizations
Benefits
- Offers Equity
- Remote work
Company Overview