Tier 3 Incident Response Senior Analyst
Listed on 2026-01-12
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IT/Tech
Cybersecurity, IT Support
Tier 3 Incident Response Senior Analyst
Sentar Inc.
Location: Quantico, VA
Salary: $135,000 – $150,000
Schedule: On‑site (no telework), Monday—Friday 8‑5, on‑call after hours and weekends approximately once every four weeks. Rare recall to site in extremis priority mission.
Role DescriptionTier 3 Incident Response Senior Analyst responsible for incident response activities throughout the enterprise. This position supports an active government contract in Quantico, Virginia, providing defensive cyberspace operations and Cyber Security Service Provider (CSSP) functions. Additionally, the role supports the government's mission to deny, disrupt, and degrade adversaries’ abilities and attempts to disrupt, exploit and attack the IT services provided to network users.
PrimaryResponsibilities
- Collect and analyze network and host artifacts from a variety of sources (logs, system images, packet captures) to characterize activity, determine root cause, operational impact, and enable rapid remediation and mitigation of cyber threats within the enterprise network through the investigation process.
- Manage and document cyber defense incidents from initial detection through final resolution.
- Perform quality assurance on routine cyber incident reporting to ensure accuracy and compliance to policies and procedures.
- Make recommendations for alert tuning and creation of new detection use cases from information gathered during response to new techniques observed on the network.
- Mentor junior analysts and guide them through the investigation process as necessary.
- Develop and refine curriculum for the supported customer's Incident Response Course.
- Assist in instructing an Incident Response Course.
- Conduct forensic analysis of device timeline, memory, file systems, and packet captures (Digital Forensics & Incident Response – DRIR).
Clearance Level: Secret; must be able to upgrade to TS/SCI.
Certifications:
- IAT Level II certification
- CSSP Incident Responder certification
Education/
Experience:
Associate's degree in Computer Science, Information Technology, Information Systems, or Computer Engineering field; or five (5) years of relatable work experience.
- 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
- Generous 401(k) match
- Competitive PTO plan that graduates quickly with years of service
- Leave programs; holiday schedule, bereavement, maternity, jury and military duty
- Mental health awareness programs
- Tuition reimbursement
- Professional development reimbursement
- Recognition and Awards programs
Sentar is an affirmative action and Equal Opportunity Employer. We proudly support M/F/Vets/Persons with Disabilities and comply with VEVRAA federal contractor employer requirements. Contact the Recruiting Manager at for reasonable accommodations.
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