Defensive Cyber Operations (DCO) Analyst

Defensive Cyber Operations Analyst

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 Defensive Cyber Operations Analyst in North Charleston!

Role Description :

We are seeking a highly capable Defensive Cyber Operations Analyst to support NIWC Atlantic's United States Cyber Command (USCYBERCOM)-accredited Cybersecurity Service Provider (CSSP). This position will operate in a classified environment and focus on the delivery of critical cybersecurity services, incident coordination, threat analysis, Purple Team collaboration, and innovation support aligned with DARPA and USCYBERCOM missions.

This role requires working with highly sensitive and classified information, supporting real-time monitoring, threat detection, incident response coordination, and the production of classified briefings and technical reports.

Key Responsibilities :

• Monitor classified dashboards and DCO systems for anomalies and incidents.
• Coordinate incident response activities with USCYBERCOM, CSSP subscribers, and mission partners.
• Execute and maintain SOPs and incident documentation from detection through after-action reporting.
• Deliver timely and accurate incident summaries and situational awareness reports.
• Conduct daily review and analysis of cyber threat intelligence from classified / unclassified sources (DNI, NSA, DHS, etc.).
• Develop and manage Indicators of Compromise (IOCs) and provide real-time reporting to stakeholders.
• Support the generation of Cyber Exposure Analysis Reports and risk assessments.
• Communicate threat intelligence and mitigation strategies to CSSP subscribers.
• Support innovation initiatives, including evaluating new cyber tools, DevSecOps integrations, and R&D engagements with academia and federal partners.
• Participate in Tiger Teams to identify and address emerging cyber threats.
• Maintain SOP documentation and deliver technical reports related to innovation efforts.
• Collaborate with Red Teams to execute persistent penetration testing scenarios.
• Evaluate the effectiveness of detection techniques and improve CSSP IOCs and processes.
• Document testing outcomes and contribute to CSSP process refinement.
• Support 24 / 7 CSSP operations, including on-call rotations or after-hours work as needed.
• Ensure alignment with DoDCAR methodology and CSSP Evaluator Scoring Metrics (ESM v10).
• Participate in program reviews, certification evaluations, and audits.

Qualifications :

Clearance Level : TS / SCI with CI Poly

Education : Bachelors degree or additional experience

Experience : 3+ years of experience in cybersecurity, DCO, incident response, or threat intelligence roles.

Familiarity with DoD cybersecurity operations and incident response procedures.

Experience working in classified environments (SCIFs) and preparing classified briefings.

Strong technical writing skills; ability to produce SOPs, threat summaries, and technical reports.

Benefits at Sentar :

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.

Sentar is an Affirmative Action and Equal Opportunity Employer M / F / Vets / Persons with Disabilities

Our culture is one of inclusivity and support. Sentar is proudly an Equal Opportunity and VEVRAA Federal Contractor Employer M / F / Vets / Persons with Disabilities. Follow these links to learn more about your rights : EEO Is the Law Poster; EEO Is Law Supplement; and Pay Transparency.

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 recruiting@sentar.com. Please indicate the specifics of the assistance needed. Thank you for considering Sentar in your employment search.

Build, Innovate, Secure Your Career at Sentar.