Senior Network Engineer – Drive Innovation Across a Global Mission Network Leidos is seeking a Senior Network Engineer to join a high‑impact program supporting a mission‑critical enterprise network. This is an opportunity to step into a role where your expertise directly shapes the performance, resilience, and evolution of a worldwide infrastructure. If you thrive on solving complex challenges, leading on‑site deployments, and pushing network capabilities forward, you’ll feel right at home here. What You’ll Do As a senior technical leader, you’ll take ownership of core network infrastructure across both CONUS and OCONUS locations. Your work will ensure that critical systems stay connected, secure, and optimized for the mission. Deploying advanced network system upgrades across global field sites Serving as the primary technical focal point for installations and site coordination Delivering hands‑on troubleshooting and rapid issue resolution Performing and supporting network maintenance, optimization, and lifecycle upgrades Producing clear, actionable documentation and reporting Contributing to Disaster Recovery and Business Continuity planning Ensuring compliance, standards alignment, and best‑practice implementation This is a role for someone who wants to lead from the front and elevate network performance at scale. What You Bring You’re a seasoned engineer with deep technical knowledge, strong analytical instincts, and the confidence to operate independently in complex environments. Basic Qualifications Bachelor’s degree in Computer Science, IT, Network Engineering, or related field 12–15 years of relevant experience Top Secret clearance (minimum) U.S. Citizenship Demonstrated expertise in network infrastructure engineering Hands‑on experience with Juniper SSR architecture and configuration Strong background in SD‑WAN technologies and deployments Proficiency with Cisco IOS/IOS‑XE Solid understanding of OSPF, BGP, EIGRP Experience with network virtualization and software‑defined networking Familiarity with network automation tools Understanding of QoS , WAN optimization, and modern network architecture principles Excellent communication, collaboration, and problem‑solving skills Preferred Qualifications Experience with cloud networking (AWS, Azure, Google Cloud) Knowledge of network monitoring tools (SolarWinds, PRTG, Nagios) Familiarity with VoIP and unified communications Understanding of containerization and microservices architectures Why This Role Matters You’ll be part of a team that keeps mission‑critical systems running at peak performance. Your expertise will directly influence the reliability, security, and evolution of a global network supporting essential operations. This is your chance to lead, innovate, and make a measurable impact . Pay Range $116,350.00 - $210,325.00 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. #J-18808-Ljbffr