Acquire and analyze endpoint and network artifacts, including NetFlow and full packet capture, to identify malicious or suspicious activity.
Identify attacker tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to strengthen detection and response capabilities.
Tune and maintain SIEM and IDS technologies to reduce false positives and improve SOC detection effectiveness.
Develop and maintain Incident Response processes, procedures, workflows, and playbooks.
Document investigations and response actions in case management systems and prepare clear, actionable incident reports.
Collaborate with cyber professionals in a fast-paced operational environment to defend the DoD Information Network (DoDIN) against sophisticated threats and advanced persistent threat (APT) actors.
Basic Qualifications
Bachelor's degree and 4–8 years of relevant cybersecurity experience.
Hands-on experience using an enterprise Security Information and Event Management (SIEM) platform.
Experience analyzing high volumes of security logs and network data, including NetFlow and/or full packet capture.
Experience with network traffic and packet analysis.
Strong understanding of TCP/IP, common ports and protocols, network traffic flows, the OSI model, system administration, defense-in-depth, and network security technologies.
Understanding of cloud security concepts and considerations.
Familiarity with Unix-based systems.
Ability to work effectively in a collaborative, mission-focused SOC environment.
Ability to work the 2:00 p.m.–10:00 p.m. swing shift.
Baseline certification (Security+ CE) and CSSP-Infrastructure Support certification at start.
U.S. citizenship with an active TS/SCI clearance with SAP Eligibility.
Preferred Qualifications: You don't need to check every box below. We'd especially like to hear from candidates with experience in one or more of the following areas:
Cybersecurity experience across Protect, Detect, Respond, and Sustain functions within a Computer Incident Response or Security Operations organization.
Experience working in a 24x7 SOC or cyber operations environment.
Understanding of the cyber threat lifecycle, attack vectors, exploitation techniques, and adversary behavior.
Familiarity with intelligence-driven defense, Cyber Kill Chain methodology, and/or related threat frameworks.
Experience analyzing advanced attacker TTPs and indicators of compromise.
Strong written and verbal communication skills, including the ability to translate complex technical findings into clear, actionable reports.
A proactive, self-motivated approach with the ability to perform effectively in a fast-paced operational environment.
Your Impact
This role gives you the opportunity to investigate real-world cyber activity, work with enterprise-scale security data and technologies, and directly strengthen defensive cyber capabilities.
At Leidos, you'll work alongside a mission-focused team helping protect the digital infrastructure behind critical national security operations.
If you're ready to bring your cybersecurity expertise to a mission that matters, apply today.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting
August 25, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range
Pay Range $87,100.00 - $157,450.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
