To our valued Leidos candidates:

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Job #: R-00114632
Location: Fort Belvoir, VA
Category: Systems Engineering
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Remote Type: Hybrid Remote
Clearance: Top Secret
Referral Eligibility: Eligible
Referral Bonus Amount: $3000
Group: Defense

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Leidos has an immediate opening for a Systems Engineer in support of the Defense Threat Reduction Agency. The position requires an active Top Secret clearance with SCI eligibility. All work is done onsite at DTRA’s facilities at Fort Belvoir, Virginia and Reston, Virginia, with a minimal amount of local travel in the National Capital Region (NCR).  This is a full time position (40hrs/week).

Primary Responsibilities:

  • Provides advanced support for operation and maintenance of existing DTRA operational environments (primarily Windows-based).

  • Provides support for configuration, operation and maintenance of existing F5 devices in all enclaves (NIPR/SIPR/JWICS).

  • Designs and implements multi-cloud application security and delivery solutions across numerous unclassified and classified networks:  BIG-IP, LTM, DNS/GSLB, APM, IdAM, 2FA/PKI, idP & SP, Zero Trust, iRule, and BIG-IQ.

  • Designs and implements Public Key Infrastructure (PKI) and Certificate Authority (CA) solutions, which facilitate/sustain DTRA's compliance with Defense Information Systems Agency (DISA) Information Assurance (IA) mandates for 2FA.

  • Analyzes and recommends improvements to existing DTRA architectures.

  • Designs and implements identity management and single signon solutions for DTRA applications and access to DTRA applications throughout the enterprise and from outside the DTRA perimeter.

  • Develops and maintains system documentation to include implementation plans, system security plans, as-builts, and architectural diagrams as appropriate.

  • Coordinates with project managers to develop project plans, communication plans and schedules as required.

  • Conducts market research and develops analyses of alternatives (AoAs) to recommend technology improvements and modernization initiatives.

Basic Qualifications:

  • Active DoD Top Secret Clearance with SCI eligibility.

  • Bachelor’s degree with 8+ years of experience, or Master’s degree with 6+ years of experience, additional years of experience may be considered in lieu degree.

  • 8570 compliant security certification (IAT Level II or higher)

  • Computing Environment Certification (Microsoft/F5 Certification/VCP as appropriate).

  • Familiarity with DoD certificate-based authentication (CAC and alternate tokens) and single-sign on (SSO) methodologies.

  • Excellent written and verbal communication skills with the ability to prepare professional briefs and documents for an executive level audience.

  • Excellent customer service skills.

  • Working knowledge of DoD server and application hardening processes including vulnerability remediation and STIG compliance.

  • Expertise in F5 BigIP DNS, Global Server Load Balancing, and Application Policy Management.

Preferred Qualifications:

  • Subject Matter Expert (SME) level experience in one or more Microsoft back office technologies (SQL Server, IIS, Exchange Server, etc).

  • Master’s Degree in an Information Technology Discipline.

  • Microsoft Windows Server 2012, 2016, and/or Active Directory certifications.

  • Advanced knowledge of and design experience with Windows Active Directory architectures, and experience migrating objects and services between disparate forests/domains.

  • Advanced knowledge of Windows scripting technologies (Windows PowerShell).

  • Working knowledge of vBrick webcasting technologies.

  • DISA STIGs and other DoD guidance.

  • DoD systems engineering processes and procedures.

  • Project Management principles.

  • Enterprise IT ticketing systems (e.g., Remedy).

  • VMware virtual environments.

Pay Range:

Pay Range $97,500.00 - $150,000.00 - $202,500.00

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® 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 46,000 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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