Senior Incident Responder II - Cyber Defense (24/7)

Sentar; Virginia; On-site; USD 90,000 - 140,000; Full time

Benefits offered by this job

Voluntary Medical, Dental, Vision

Generous 401(k) match

Competitive PTO

Other leave programs

Job summary

Sentar in Quantico, VA seeks a Tier II Incident Response Senior Analyst to monitor, detect, and respond to cybersecurity incidents across government networks 24/7/365. This fast-paced, high-impact role requires hands-on investigation and rapid containment.

You will work with Tanium, Elastic/Kibana, and Microsoft Defender for Endpoint, communicating with technical teams and stakeholders, while supporting a security-first culture and DoD‑aligned practices in a mission-critical environment.

Qualifications

• Experience in incident response or related roles in cybersecurity.
• Known DoD environments and cybersecurity frameworks are a plus.
• Strong analytical and investigative capabilities are required.

Responsibilities

• Monitor and detect security incidents across government networks 24/7/365.
• Conduct in-depth cyber investigations and respond to incidents.
• Coordinate with technical teams and stakeholders to secure the enterprise network.
• Maintain rapid containment and remediation of threats.

Skills

Forensic analysis

Threat hunting

Vulnerability assessment

Communication skills

Problem solving

Attention to detail

Education

High School Diploma or Equivalency Certificate

Tools

Tanium

Elastic/Kibana

Microsoft Defender for Endpoint

Job description

Sentar in Quantico, VA seeks a Tier II Incident Response Senior Analyst to monitor, detect, and respond to cybersecurity incidents across government networks 24/7/365. This fast-paced, high-impact role requires hands-on investigation and rapid containment.

You will work with Tanium, Elastic/Kibana, and Microsoft Defender for Endpoint, communicating with technical teams and stakeholders, while supporting a security-first culture and DoD‑aligned practices in a mission-critical environment.