Senior Cybersecurity Analyst

Job ID: 6101
Date Posted: February 2, 2026
The Space Dynamics Laboratory (SDL) is seeking a skilled Information Security Analyst with 10+ years of hands-on cybersecurity experience to join our dynamic security operations team. This role spans mid-level to senior responsibilities, focusing on threat detection, incident response, security tool management, and contributing to the enhancement of our overall security posture. The position involves a mix of high-level operational execution, independent analysis, and contributions to process improvements. The ideal candidate brings practical experience in enterprise security environments, strong analytical skills, and a proactive approach to identifying and mitigating risks.
SDL delivers advanced multi-domain solutions to protect National security and enable scientific discovery. Our expertise in satellites, sensors and instruments, ground systems and data processing, and autonomous systems plays a critical role in missions supporting NASA and the Department of War. Join our team of engineers, scientists, technicians, and business professionals in our seventh decade of delivering mission success.

Key Responsibilities:
Threat Prevention & Monitoring

• Monitors security alerts from SIEM, EDR, IDS/IPS, email filter, endpoint tools, and other platforms
• Performs triage, investigation, and escalation
• Develops, tunes, and maintains detection rules, signatures, queries, and behavioral analytics
• Conducts proactive threat hunting for IOCs to identify attacker TTPs
• Conducts deep threat analysis on software packages and applications
• Optimizes and maintains deception platforms

• Investigates security incidents from initial detection through containment, eradication, recovery, and lessons learned
• Documents incidents thoroughly, including root cause analysis, timelines, and recommendations
• Coordinates response activities with internal teams and, when needed, external partners

• Operates and optimizes security tools
• Automate repetitive tasks and workflows using tools and/or scripting (Python, PowerShell, etc.)
• Supports vulnerability management processes: scanning, prioritization, remediation tracking, and validation
• Evaluates new security technologies and recommends improvements to existing tools and processes

• Consumes, automates, analyzes, and applies internal and external threat intelligence to enhance detections, hunting, and defenses
• Collaborates with IT, GRC, engineering, and other teams on security projects, risk assessments, and awareness efforts
• Participates in threat emulation, purple team exercises, or control testing to validate and strengthen defenses

• Maintains, updates, and contributes to incident response playbooks, runbooks, and standard operating procedures
• Assists with NIST 800-171 compliance and regulatory requirements through evidence collection, control testing, and assessment support
• Identifies gaps in security processes and proposes enhancements to improve efficiency, detection accuracy, and decrease MTTD/MTTR

• Bachelor’s degree in Cybersecurity or a related field with 10+ years, or a Master’s degree with 8+ years, of professional experience in cybersecurity operations, threat detection, incident response, or related technical security roles
• Must possess CISSP or equivalent DoDD 8570 certification
• Proven experience with event tria