Senior Cybersecurity Engineer

The Defense Sector at Leidos is looking for a Senior Cybersecurity Engineer to support a fast-paced program with Air Force Life Cycle Management Center. The Senior Cybersecurity Engineer will provide comprehensive Security Operations Center (SOC) support to a weapons system program with the Air Force. This role is a critical member of the 24x7 security and network operations center team, ensuring the security and integrity of program IT infrastructure, protecting sensitive data, and mitigating cyber threats. The ideal candidate will have a strong technical background in cybersecurity principles, tools, and best practices. This position will require 100% on-site work with no remote work supported. This role will support 24x7 operations and requires shift rotations on a regular basis. Shift assignments will be based on program requirements and your preference, but some flexibility may be required.

Primary Responsibilities:

Provide SOC and Incident Response support, including coordination, execution, and implementation of all actions required for the containment, eradication, and recovery measures for events and incidents. Monitor and reply to events and alerts from the SIEM, monitoring tools, and other network tools. Investigate events of interest and escalating to senior

NOC / SOC

members. Drive incidents from discovery to closure and reporting, with comprehension of escalation procedures and criteria. Categorize incidents and partner with appropriate authorities in the production of security incident reports. Build timelines, documents, briefings, and other products as required to inform stakeholders of incident response actions, analysis, and the impact of both the incident and remediation actions taken. While not in a period of incident response, you will conduct exercises and dry runs to improve response outcomes in the event of a cyber-incident. Integrate with Information Assurance (IA) team to support policy updates and continuous monitoring activities in support of Authorization to Operate (ATO) maintenance. Provide enterprise recommendations to remediate environment wide issues, support continuous process improvement, and report analysis. Investigate compromised endpoints, identifying indicators of compromise (IOC) within the environment and conveying to stakeholders the impact of discovered events.

Basic Qualifications:

US Citizen with at least a Top Secret clearance and the ability to obtain a SCI prior to your start date. In addition, the ability to maintain your clearance during your employment with Leidos Bachelor's Degree with 12+ years of experience or Master's degree with 10+ years of experience. Additional experience may be considered in lieu of a degree Must have an active DoD IAT Level II certification, prior to start (e.g. Sec+, CISSP) Incident Response experience Knowledge of

MITRE ATT&CK

principles Systems administration experience - desktop and server systems connected to local and wide area networks Knowledge Management skills to follow and create documentation. Experience with Splunk, ACAS, ESS Excellent problem-solving skills and troubleshooting skills Motivated self-starter with strong written and verbal communication skills for collaborating with technical and non-technical stakeholders, and the ability to create complex technical reports on analytic finding

Preferred Qualifications:

Working knowledge of cloud security and related tools for incident response Experience securing classified DoD networks, such as networks connected to SIPR or JWICS Knowledge of cloud-native security information and event management (SIEM) tools Knowledge of cloud-native endpoint security tools Experience with Agile framework and DevSecOps Familiarity with incident response processes and tools Experience with scripting or automation tools for security tasks Ability to work in a dynamic environment and adapt to changing priorities Experience using and interpreting vulnerability assessment or scanning tools such as Nessus

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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:

May 18, 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 $131,300.00 - $237,350.00 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. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.

Leidos.com. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.