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Job #: R-00122012
Location: Suitland, MD
Category: Cyber Security Architecture and Engineering
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Remote Type: No Remote
Clearance: Top Secret/SCI
Referral Eligibility: Eligible
Referral Bonus Amount: $5,000
Group: Defense

This job posting is no longer active.

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Job Description

Leidos is hiring a Computer Network Defense Security Engineer to work on site in Suitland, MD.

An active TS/SCI clearance is required to be considered for this role.

This position has the potential to offer a PTO or Sign-on Bonus !

As a CND Security Engineer, you will provide operations, engineering, technical and program management services to support cyber related requirements and operations.

You'll work independently to achieve critical mission objectives supporting a single specialized network enclave with two functional customer systems each consisting of server, database, and workstations.

You'll collaborate with a team of forward thinking, innovative, and highly motivated IT professionals and Security Engineers dedicated to implementing and leveraging the latest technologies to secure, protect, assess, and monitor fielded IT capabilities against a full range of internal and external threats.


  • Analyze monitor Threat Events in McAfee/Trellix ePO, Splunk Enterprise, Palo Alto Firewall/IDPS and RSA Authentication Manager.

  • Analyze and investigate endpoint alerts to include malware, virus, rogue system detection and removable media.

  • Author new Splunk Dashboards to visualize and investigate program data. Perform regular ACAS scans on program systems.   

  • Assist in the research in emerging technologies and assess their technical and performance characteristics.

  • Provide input to the development and maintenance of documentation for each project and system to include Requirements and Design Documents, Implementation Plans, Concept of Operations, RMF documentation, System/Network Diagrams, WBS Project Schedule, Installation & Configuration Guides, Operations & Maintenance Guides and Analyst Operations Guides

  • Perform system administration tasks, apply and update STIGs, run SCAP benchmark scans, OS and application patching and management for VMware ESXi, Windows 10 and Server 2016, CentOS 7x Linux and various appliances and applications

Minimum Qualifications

  • Active DOD TS/SCI Clearance

  • BS/BA and 7+ years of related CND work experience; additional experience may be considered in lieu of a degree.

  • Active IAT Level II DoD Approved 8570 certification or higher.

  • Experience in design, development, integration, implementation, operation, and analysis of cyber security technologies used within the DoD and IC as well as knowledge of federal cyber security initiatives.

  • Demonstrated experience in Engineering, testing, configuration/tuning, administration and operational use of vulnerability management and assessment technologies such as McAfee/Trellix ePO, and Security Information and Event Management systems (i.e., Splunk)

  • Familiarity and expertise conducting vulnerability assessments using Tenable (ACAS), SCAP benchmark scans, and subsequent remediation of security control deficiencies.


Pay Range:

Pay Range $97,500.00 - $176,250.00

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.


About Leidos

Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 47,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.  For more information, visit

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

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to 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.

This job posting is no longer active.

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