Senior Network Engineer

The Decision Advantage Business Area at Leidos is looking for an experienced Senior Network Engineer to support a fast-paced program with the Air Force Life Cycle Management Center. The ideal candidate will possess extensive experience in network engineering, a strong understanding of DoD IT requirements, and proven leadership skills. The primary responsibility of this position is leading the program’s enterprise network engineering services team on-site at our Network Operations Center, providing 24x7 monitoring of critical customer networks. You will oversee and support the deployment of managed services, workstations, and networks, ensuring compliance with DoD policies and security standards. In addition, they will collaborate with customers and stakeholders to understand requirements and translate them into technical solutions. The Senior Network Engineer will be an integral member of the Network team, collaborating on strategic initiatives and ensuring alignment with overall program goals. This position the candidate to be local and able to work on-site at our location in Lorton, VA Primary Responsibilities: Technical Lead for team of up to 10 network engineers in the design, implementation, and support of network infrastructure for DoD environments. Oversee Network Operations Center (NOC) ensuring high availability, security, and rapid incident response. Develop detailed network designs and architectures that align with Department of Defense (DoD) standards. Collaborate with procurement teams to identify and source network hardware and software that meet project specifications. Oversee the installation and configuration of network equipment, including routers, switches, firewalls, and servers. Conduct thorough testing of network systems to ensure functionality, performance, and security compliance. Troubleshoot and resolve issues that arise during installation and testing phases. Maintain accurate documentation of network configurations, installations, and changes. Develop and update network diagrams and other relevant technical documents. Work closely with engineers, project managers, and stakeholders to ensure successful project delivery. Provide technical support and guidance to team members and end-users. Stay updated on DoD policies and best practices related to network security and design. Implement security measures to protect network infrastructure and data. By personal example, set the tone and direction for moral and ethical leadership. Build a culture grounded in the Leidos values, beliefs and expectations and highest standards of ethical and respectful behavior. Basic Qualifications: US Citizen with at least an active Top Secret clearance and the ability to obtain a SCI prior to your start date with Leidos. Bachelor’s degree with 12+ years of experience or Master’s degree with 10+ years of experience. Additional experience may be considered in lieu of a degree. Expert knowledge of networking protocols, routing, and switching technologies (e.g., TCP/IP, BGP, OSPF, VLANs). Expert knowledge of enterprise network design principles and networking technologies, including firewalls, VPNs, and intrusion detection systems. Expert knowledge of networking hybrid cloud architectures, especially to the Azure Cloud. Strong knowledge of protocols, security standards, and design principles for OSI Layers 1-4. Experience with installation and configuration of physical networking equipment and Local Area Networks (LANs). Experience with the design and deployment of Wide Area Networks (WANs) using Virtual Private Networking (VPN) technologies. Experience in interpreting and contextualizing network management and troubleshooting tools and technologies, such as ICMP, SNMPv3, and Syslog. Excellent problem-solving and analytical skills. Preferred Qualifications: US Citizen with an active TS/SCI security clearance. Advanced networking certifications (e.g., CCNP, CCIE, CompTIA Network+). Experience with cloud networking and virtualization technologies. Familiarity with network monitoring and management tools (e.g.,  ServiceNow) Previous experience working with federal government or military customers. 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: March 4, 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 $131,300.00 - $237,350.00 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.