Description Senior Network Engineer – Drive Innovation Across a Global Mission NetworkLeidos 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 DoAs 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.Your key responsibilities include:Deploying advanced network system upgrades across global field sitesServing as the primary technical focal point for installations and site coordinationDelivering hands‑on troubleshooting and rapid issue resolutionPerforming and supporting network maintenance, optimization, and lifecycle upgradesProducing clear, actionable documentation and reportingContributing to Disaster Recovery and Business Continuity planningEnsuring compliance, standards alignment, and best‑practice implementationThis is a role for someone who wants to lead from the front and elevate network performance at scale. What You BringYou’re a seasoned engineer with deep technical knowledge, strong analytical instincts, and the confidence to operate independently in complex environments.Basic QualificationsBachelor’s degree in Computer Science, IT, Network Engineering, or related field12–15 years of relevant experienceTop Secret clearance (minimum)U.S. CitizenshipDemonstrated expertise in network infrastructure engineeringHands‑on experience with Juniper SSR architecture and configurationStrong background in SD‑WAN technologies and deploymentsProficiency with Cisco IOS/IOS‑XESolid understanding of OSPF, BGP, EIGRPExperience with network virtualization and software‑defined networkingFamiliarity with network automation toolsUnderstanding of QoS, WAN optimization, and modern network architecture principlesExcellent communication, collaboration, and problem‑solving skills Preferred QualificationsThese skills will help you stand out:Experience with cloud networking (AWS, Azure, Google Cloud)Knowledge of network monitoring tools (SolarWinds, PRTG, Nagios)Familiarity with VoIP and unified communicationsUnderstanding of containerization and microservices architectures Why This Role MattersYou’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.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 26, 2026For 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 $116,350.00 - $210,325.00The 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 LeidosLeidos 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 and BenefitsPay 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 Your DataBeware 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 .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-DiscriminationAll 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.