Senior Blue Team Analyst - Top Secret Clearance

SENTINEL GROUP LLC; Chantilly (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

SENTINEL GROUP LLC is seeking a Senior Cybersecurity Blue Team Analyst to lead defensive operations across complex enterprise IT environments in Chantilly, VA. The role requires hands-on assessment, architecture evaluation, and incident response leadership.

You will mentor junior analysts and translate technical findings for senior government and technical leadership, maintaining a robust defensive posture against evolving threats.

Qualifications

• 7+ years of experience in cybersecurity and related fields.
• Ability to lead cybersecurity assessments across diverse environments.
• Expert knowledge of enterprise network architecture, OS, cloud computing, virtualization, applications, databases, IAM.
• Experience with SIEM, EDR/XDR, vulnerability management, incident response.
• Top Secret security clearance required; counterintelligence polygraph desired.

Responsibilities

• Lead comprehensive cybersecurity assessments across diverse enterprise IT environments.
• Assess security architecture, controls, configurations, telemetry across on‑premises, cloud, hybrid, and distributed environments.
• Evaluate security of enterprise networks, Windows and Linux infrastructure, endpoints, applications, databases, virtualization, IAM, and security platforms.
• Lead vulnerability assessments, configuration reviews, threat hunts, and defensive cyber assessments.
• Analyze complex security events and telemetry to identify sophisticated attacks and adversary behaviors.
• Correlate information across SIEM, EDR/XDR, network, identity, cloud, and vulnerability-management platforms.
• Lead investigations of significant cybersecurity incidents and provide direction for containment and recovery.
• Track emerging vulnerabilities and TTPs to improve defensive capabilities.
• Translate technical findings into actionable recommendations for government and senior leadership.
• Mentor and provide technical leadership to entry- and intermediate-level analysts.

Skills

Cybersecurity

Defensive cyber operations

Security engineering

Information assurance

Vulnerability management

Threat hunting

Incident response

Security analytics

Technical writing

Leadership

Tools

SIEM

EDR/XDR

Vulnerability management

Network security

Job description

SENTINEL GROUP LLC is seeking a Senior Cybersecurity Blue Team Analyst to lead defensive operations across complex enterprise IT environments in Chantilly, VA. The role requires hands-on assessment, architecture evaluation, and incident response leadership.

You will mentor junior analysts and translate technical findings for senior government and technical leadership, maintaining a robust defensive posture against evolving threats.