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Job #: R-00084586
Location: Springfield, VA
Category: Systems Engineering
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Potential for Telework: No
Clearance: Top Secret/SCI with Polygraph
Referral Eligibility: Eligible
Referral Bonus Amount: $5000
Group: Intelligence

This job posting is no longer active.

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Job Description:

The National Solutions Intelligence Group at Leidos is looking for a Computer Network Defense (CND) Engineer to work a Government site in Springfield, VA.  Among other duties, the CND Engineer will perform daily vulnerability and threat assessments as well as providing safeguards of information assets. 

Primary Responsibilities:

  • Perform daily vulnerability assessment, threat assessment, mitigation and reporting activities in order to provide Computer Network Defense (CND) safeguards of information assets.

  • Carry out technical administration of information security (IS) in accordance with customer security requirements.

  • Monitor Audit logs of all assets for misuse/security issues and take appropriate actions to correct/mitigate identified security issues.

  • Monitor virus/malware protection within client infrastructure and any pending virus/malware threats outside the environment.

  • Evaluate network asset compliance against DoD security guidelines/requirement and provide guidance to meet the required configuration.

  • Upkeep, monitor, analyze, and respond to network and security events.

  • Document compliance actions within the approved automated compliance tracking system or develop a plan of actions and milestones (POA&M) with the Information Systems Security Manager (ISSM) to address non-compliance in the allotted time frame.

  • Ensure systems are operated, maintained, and disposed of in accordance with internal security policies and practices outlined in the security plan.

  • Ensure configuration management (CM) for security-relevant IS software, hardware, and firmware is maintained and documented in accordance with baseline.

  • Ensure all information system security-related documentation is current and accessible to properly authorized individuals.

  • Ensure records are maintained for workstations, software, servers, routers, firewalls, network switches, telephony equipment, etc. throughout the information system's life cycle.

  • Participate in internal/external security audits/inspections; performs risk assessments.

  • Inform ISSM on technical IS security matters.

  • Assist in conduct of investigations of computer security violations and incidents, reporting as necessary to both the Contractor Program Security Officer (CPSO) and Program Managers.

  • Ensure proper protection and / or corrective measures have been taken when an incident or vulnerability has been discovered.

Basic Qualifications:

  • Active TS/SCI Clearance with ability to obtain Polygraph

  • Bachelor’s degree in a relevant discipline and 8+ years of relevant work experience or a Master’s Degree and 6+ years of relevant work experience

  • Experience with vulnerability remediation and security management (i.e., system hardening, log management, configuration management (i.e., Nessus, McAfee, WSUS, SCCM, ACAS, SCAP, HBSS, etc.))

  • Working knowledge and hands-on experience with Elastic (ELK) Stack, McAfee, and Ansible

  • Operating System Administration/Development Experience with RHEL 7.x, Windows Server 2016/2019, Windows 10 Workstation

  • Proven hands-on experience in basic scripting

  • Security + Certification within 6 months of joining the program

Preferred Qualifications:

  • In depth experience in system hardening, analysis, and vulnerability management

  • Experience implementing complex technologies at multiple classification levels within large environments and at an Enterprise level

  • Knowledgeable of operating system and application security requirements from NIST Special Publication 800-53, Revision 4

  • Experience with observability and enterprise management

  • Understanding of computer network defense framework

  • Demonstrated ability to coordinate/collaborate within team of developers, Scrum Master, and Product Owner

  • Strong problem solving and technical troubleshooting skills

  • Security + Certification

Experience with the following technologies:

  • Scripting in UNIX Shell

  • McAfee ePO

  • VersionOne

  • Jenkins

  • Continuous integration tools and processes

  • Amazon Web Services (AWS)

Pay Range:

Pay Range $94,250.00 - $145,000.00 - $195,750.00

About Leidos

Leidos is a Fortune 500® technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, civil, and health markets. The company’s 45,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $14.4 billion for the fiscal year ended December 30, 2022.  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.

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