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Network EngineerLeidos • Columbia, South Carolina, United States
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Network Engineer

Leidos
  • US
    Columbia, South Carolina, United States
  • US
    Columbia, South Carolina, United States
Apply Now

About

Description
Leidos is seeking a Network Engineer to support the Defense Enclave Services (DES) program at Ft. Meade, MD. This position will focus on Lifecycle Replacement (LCR) activities for enterprise network infrastructure, including end-of-service (EOS) and end-of-life (EOL) technology refresh initiatives across the enterprise environment. The selected candidate will provide technical expertise for planning, staging, configuration, testing, implementation, and migration of enterprise network devices while ensuring compliance with DISA and DoD standards. This role is engineering-focused and is not responsible for incident management or operational Tier III escalation support. Clearance Requirement
Must hold an active Secret security clearance prior to start.
Must be able to obtain and maintain a Top Secret clearance.
US Citizenship required.
Primary Responsibilities
Perform lifecycle replacement and technology refresh activities for enterprise network infrastructure.
Engineer, configure, test, and implement routers, switches, and associated network devices in accordance with approved engineering standards and security requirements.
Develop and execute Engineering Implementation Plans (EIPs), migration plans, validation procedures, and rollback procedures.
Support network modernization and hardware refresh initiatives across enterprise environments.
Coordinate and execute maintenance windows, circuit migrations, and cutover activities with internal teams and customer stakeholders.
Validate network device configurations for compliance with DISA STIGs and organizational security requirements.
Perform configuration management, software upgrades, and hardware replacement activities.
Analyze network designs and recommend improvements related to reliability, scalability, and maintainability.
Create and maintain technical documentation, implementation procedures, diagrams, and as-built documentation.
Collaborate with architecture, cybersecurity, and operations teams to ensure successful transition and deployment activities.
Support testing and validation of network connectivity, routing, switching, and security functionality during implementation activities.
Participate in continuous process improvement initiatives and standardization efforts.
Provide technical guidance and mentorship to junior engineers and implementation personnel.
Support occasional after-hours maintenance activities and scheduled implementation windows.
Basic Qualifications
Bachelor’s degree and 8+ years of related experience; additional years of experience may be considered in lieu of degree.
DoD 8570 IAT Level II certification required prior to start (Security+ CE or equivalent).
Advanced knowledge of enterprise routing and switching technologies.
Experience implementing and supporting large-scale enterprise network infrastructure.
Hands-on experience with routing protocols including BGP and OSPF.
Experience with switching technologies including VLANs, STP, and Layer 2/Layer 3 network design.
Strong understanding of IP networking, subnetting, and network troubleshooting methodologies.
Experience performing network hardware refreshes, circuit migrations, and infrastructure modernization activities.
Experience developing implementation plans, migration procedures, and technical documentation.
Familiarity with DISA STIG compliance requirements and secure network configuration practices.
Ability to coordinate and execute maintenance activities in a mission-focused enterprise environment.
Ability to travel up to 25%, including potential OCONUS travel.
Willingness to support scheduled after-hours maintenance windows as required.
Preferred Qualifications
Previous experience supporting DISA or DoD enterprise network environments.
Experience with Cisco, Juniper, Aruba, or Palo Alto network technologies.
Relevant vendor certifications such as CCNP, JNCIP, Aruba ACP, or equivalent.
Experience with automation, scripting, or infrastructure-as-code concepts.
Familiarity with ITIL processes and change management practices.
Experience supporting large-scale network migration or modernization efforts.
Active CISSP, CCNP, or equivalent advanced certification.
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 11, 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 $92,300.00 - $166,850.00 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 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 $16.7 billion for the fiscal year ended January 3, 2025. 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 at . 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 Leidos.com 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 . If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the . Commitment to Non-Discrimination 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.
  • Columbia, South Carolina, United States

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  • English
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