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Onebrief

Senior Systems Engineer

Reposted 2 Days Ago
Remote
Hiring Remotely in USA
Senior level
Remote
Hiring Remotely in USA
Senior level
The Senior Cybersecurity Engineer will design security solutions, improve protocols, lead incident response, and assess security for cloud and on-premises environments.
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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 $123m+ from top-tier investors, including Battery Ventures, General Catalyst, Insight Partners, and Human Capital, and today, Onebrief is valued at $1.1B. With this continued growth, Onebrief is able to make an impact where it matters most.

About You

You are a seasoned cybersecurity professional with a passion for cloud-native technologies and a strong desire to stay ahead of evolving threats. You thrive in collaborative, remote environments and enjoy solving complex security challenges with innovative solutions. Motivated by continuous learning and growth, you’re looking to make a meaningful impact by helping secure modern, dynamic IT ecosystems in a company that values both technical excellence and professional development.

Technical Skills
  • Mobile Device Management (MDM): Proficient in Workspace One, with additional experience in Intune, Jamf, and other leading MDM platforms.

  • Secure Access Service Edge (SASE): Hands-on experience with Zscaler to enable secure, scalable access across distributed environments.

  • Security Information and Event Management (SIEM): Skilled in using Splunk for threat detection, log analysis, and real-time security monitoring.

  • Identity and Access Management (IAM): Extensive experience with Okta for user provisioning, single sign-on (SSO), and access governance.

  • Automation & Workflow Orchestration: Expertise in automating manual tasks and building integrations using APIs, webhooks, workflows, and triggers to streamline IT and security processes.

  • Scripting & Configuration Management: Proficient in PowerShell, Bash, and Python for automating deployments, enforcing security baselines, and maintaining systems.

  • AWS Security: Deep understanding of securing and hardening AWS environments using both commercial and open-source tools, ensuring continuous compliance and strong security posture.

Soft Skills
  • Exceptional analytical and problem-solving skills, with a sharp attention to detail

  • Proactive in identifying, assessing, and mitigating security risks across systems and infrastructure

  • Strong communicator; able to collaborate across teams and explain complex security concepts to non-technical stakeholders

  • Self-motivated and adaptable; thrives in fast-paced, dynamic environments

  • Skilled at translating business needs into functional software and security tooling

  • Experienced in developing and deploying internal tools to enhance security operations

Qualifications
  • U.S. Citizen

  • Able to pass a background check

  • (Preferred) Bachelor’s degree in Computer Science, Information Systems, Cybersecurity, or a related field

  • 6+ years of experience in cybersecurity, with a strong focus on cloud environments

  • Relevant certifications such as CISSP, Security+, CCSP, AWS Certified Security – Specialty, or equivalent

  • Strong experience with both Windows and macOS operating systems

  • Comfortable working in a fully remote or distributed team environment

Most importantly, you are a true Onebriefer:
  • You are obsessed with creating value for real users

  • You are ambitious, scrappy, and a creative problem-solver

  • You learn quickly, work iteratively, and naturally seek collaboration

  • You approach your work with integrity, intellectual honesty, and a low ego

  • You communicate frankly, clearly, and succinctly

  • You thrive as a self-starter, embracing autonomy and ambiguity

Compensation Range: $150K - $195K


#BI-Remote

Top Skills

Amazon Machine Images
Bash
Cloud Security
Mobile Device Management
Powershell
SIEM
Soar
Zero Trust

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