Network Engineer

Description The Leidos Digital Modernization Sector is seeking a Data Center Network Engineer in support of the Air Force National Capital (AFNCR) IT Services program. At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer's success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. If this sounds like an environment where you can thrive, keep reading! The AFNCR IT Services program provides support services for information systems for Headquarters Air Force (HAF), Air Force District of Washington (AFDW), Office of the Secretary of Defense (OSD), Joint Chiefs of Staff, and other Air Force activities within the AFNCR, missions to include the Pentagon, Joint Base Andrews (JBA), Joint Base Anacostia-Bolling (JBAB), and other locations, leased spaces, and alternate sites. The major support areas required are IT Operations and Maintenance; Plans, Projects, and Engineering (PP&E); and National Military Command Center (NMCC). The senior leaders and national defense missions that are supported require that the AFNCR operations never fail, resulting in a fast-paced, challenging, but also rewarding environment. Are you ready to make an impact? Begin your journey of a flourishing and meaningful career, share your resume with us today! Hours: 1000-1800 (10am to 6pm) Telework: 100% On-site at Joint Base Andrews, MD Responsibilities: Manage, deploy, configure, and maintain core data center hardware, including switches, routers, and high-performance server network interfaces. Maintain comprehensive physical infrastructure documentation, including precise rack layouts, detailed port maps, and highly accurate physical asset tracking databases. Employ and manage enterprise-level network systems, utilizing Cisco Catalyst Center (formerly Cisco DNA Center) and Cisco Identity Services Engine (ISE) for policy enforcement, device profiling, and automated access control. Configure and manage Cisco Nexus Series switches. Configure and manage F5 Load Balancers (LTM/GTM) to guarantee application high availability and administer RSA Authentication Manager to support multi-factor authentication (MFA) across secure enclaves. Monitor system performance, capacity, and overall environmental health using Cacti network monitoring and other SNMP-based telemetry tools. Deploy and troubleshoot multicast-based Internet Protocol Television (IPTV) platforms over the enterprise LAN. Install, key, configure, and support TACLANE (e.g., KG-175D, KGV-72) and other High-Assurance IP Encryptors (HAIPEs) to secure sensitive data-in-transit across classified and unclassified networks. Implement and enforce physical and logical cybersecurity measures to safeguard critical infrastructure, databases, and network boundaries in accordance with DoD regulations. Develop, update, and maintain detailed Standard Operating Procedures (SOPs) for data center operations, ensuring strict alignment with military directives, safety, and environmental protocols. Act as the technical point of contact with higher-level support units, such as the 26th Network Operations Squadron (26th NOS) and the Defense Information Systems Agency (DISA), ensuring rapid coordination and resolution during network outages or degraded performance periods. Draft, coordinate, and process Authorized Service Interruptions (ASIs) as directed by leadership, ensuring appropriate risk mitigation and stakeholder notification. Coordinate with multidisciplinary engineering and facility stakeholders to schedule and execute preventative hardware maintenance and routine system-wide upgrades with minimal operational disruption. Proactively identify single-points-of-failure and mitigate operational reliability risks to guarantee maximum network uptime and mission stability. Participate in disaster recovery (DR) planning, complete routine system backups, and execute logical and physical system restoration processes. Support a continuous, mission-critical operational standby and on-call rotation schedule to resolve emergent tier-3 technical issues during off-hours. Basic Requirements: Bachelor's degree in Computer Science, Information Technology, Computer/Electrical Engineering, or similar with 8 years of relevant experience or a Masters degree in Computer Science or a related field with 6 years of relevant experience additional experience will be considered in lieu of a degree. Must possess an active DoD Secret clearance. Must meet DoD 8140 IAT Level II or III baseline certification requirements (e.g., CompTIA Security+ CE, CCNA Security, CySA+, or CISSP). Professional-level network certification required (e.g., Cisco Certified Network Associate (CCNA) , Cisco CCNP Enterprise, F5-CA, or equivalent). Proven experience configuring and troubleshooting enterprise-grade switches and routers (specifically Cisco platforms). Hands-on administration of Cisco Catalyst Center (DNA Center), Cisco ISE, and F5 Local/Global Traffic Managers. Experience with RSA Authentication Manager database administration and user agent configuration. Direct experience configuring, keying, and troubleshooting TACLANE HAIPE encryption units. Proficiency knowledge of DISA STIGs for network devices and appliances. Familiarity with SNMP monitoring protocols, Cacti, and multicast routing protocols (e.g., PIM, IGMP snooping) for IPTV systems. Preferred Qualifications: Understanding of IPv6 to include configuration and common notation/nomenclature. Proficiency in Python and Ansible for network automation. Familiarity with Cisco SD-WAN, Cisco Application Centric Infrastructure (ACI). Experience working in air-gapped and/or classified network environments (e.g., SIPRNet) is highly desirable. Knowledge of Air Force, Pentagon, and/or AFNCR. Experienced working at the Pentagon, Joint Base Andrews (JBA), and Joint Base Anacostia-Bolling (JBAB). 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: July 29, 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 $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline onlyand 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 U.S. Federal Trade Commission. 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.