Cyber Defense Analyst

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Sentar is proud to be an employee‑owned company, fostering a culture of empowerment, collaboration, and innovation. Sentar is dedicated to developing the critical talent that the connected world demands to create solutions to address the convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the team where you can build, innovate, and secure your career.

Sentar is seeking a Cyber Defense Hunt Analyst in Quantico, VA!

We are seeking a mission‑driven Cyber Defense Hunt Analyst to join our team supporting the Marine Corps Cyberspace Operations Group (MCCOG) under the Cybersecurity Service Provider (CSSP) mission. In this role, you will conduct advanced defensive cyberspace operations (DCO-IDM) to detect, analyze, and mitigate Advanced Persistent Threats (APTs) across enterprise environments.

You will perform proactive hunt missions aimed at reducing adversary dwell time, identifying stealthy attacker behaviors, and improving defensive posture across Marine Corps networks. This is a critical opportunity to work within an elite, forward‑leaning cyber defense organization protecting national security assets from sophisticated cyber adversaries.

Clearance Level: TS/SCI

Certifications:

IAT III and CSSP Analyst

Experience:

5 years of related experience

• Proven experience analyzing endpoint, network, and identity telemetry to identify adversary activity
• Familiarity with MITRE ATT&CK, Power Shell‑based threat techniques, and Active Directory exploitation
• Demonstrated ability to produce compliant, technically accurate documentation under CJCSM 6510.01B

Preferred Qualifications

• Experience supporting MARFORCYBER, MCCOG, or other DoD CSSP organizations
• Hands‑on proficiency with:
  • Microsoft Sentinel, Defender for Endpoint, Cisco ISE, TACACS, Tanium, and SQL‑based data repositories
• Scripting proficiency in Power Shell or Bash to automate data collection or configuration retrieval
• Familiarity with adversary campaigns such as Volt Typhoon, Salt Typhoon, or APT
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• Understanding of CJCSM 6510.01B, DoD 8530.01‑M, and CSSP compliance reporting standards
• Strong communication and presentation skills — ability to brief technical and executive audiences
• Prior experience contributing to or teaching cyber hunt training courses or SOP updates

Our unique ownership model attracts top talent, giving employees the freedom to take initiative and drive meaningful improvements. In addition to cultivating a thriving and inclusive work environment, Sentar offers an extensive benefits package designed to support the well‑being of employees and their families. Employee ownership is the foundation of our culture, promoting participation, teamwork, and accountability while ensuring long‑term financial security and a commitment to excellence.

• Voluntary Medical, Dental, Vision, with Health Savings or Flexible Spending Plan options
• Voluntary Life, Critical Illness, Accident, and Long Term Care insurance options
• Group Term Life, Short‑Term and Long‑Term Disability is provided by Sentar to all qualifying employees
• Generous 401(k) match
• Competitive PTO plan that graduates quickly with years of service
• Other leave programs; holiday schedule along with bereavement, maternity, jury and military duty

Sentar is an Aff… M/F/Vets/Persons with Disabilities

We want you to build your career at Sentar, so if you are an individual with a disability and require a reasonable workplace accommodation applying for a job or at any point in the employment process, contact the Recruiting Manager at  . Please indicate the specifics of the assistance needed. Thank you for considering Sentar in your employment search.