Senior Network Engineer

Senior Network EngineerLeidos is seeking a Senior Network Engineer to join our elite team supporting mission-critical national security programs. In this role, you'll work at the forefront of cybersecurity, network engineering, and advanced analytics—helping defend and enable some of the nation's most vital operations.Our Cyber & Analytics Business Area (CABA) brings together experts in Security Engineering, Computer Network Operations (CNO), SIGINT, Mission Software, and Cryptographic Key Management. If you're looking for meaningful work, cutting-edge challenges, and a team that values innovation and expertise—you'll find it here.Why Join Leidos?We believe great work starts with supporting our people.

That's why we offer:Competitive compensation & 401(k) with 6% match (immediate vesting)Generous PTO + 11 paid holidaysFlexible work schedules (no travel required for this role)Paid parental leaveEducation, training, and certification supportTechnical upskilling & career growth opportunitiesEmployee stock purchase planAt Leidos, your growth is part of our mission.What You'll DoAs a Senior Network Engineer, you'll play a key role on a high-visibility, fast-paced program supporting multiple organizations from a centralized environment. You'll tackle complex challenges, influence network strategy, and mentor the next generation of engineers.Your responsibilities will include:Leading advanced network troubleshooting and problem resolutionAnalyzing and optimizing network performance, latency, and throughputDesigning and implementing scalable, secure network architecturesWorking with technologies such as:Routing protocols & BGPPolicy-based routing & traffic shapingIPSec tunneling & NATFirewalls, load balancing, and WAN optimizationEvaluating and integrating emerging networking technologiesCollaborating with cross-functional teams to deliver mission-driven solutionsMentoring junior engineers (Levels 0–2) and ensuring engineering excellenceWhat You Bring12–15 years of network engineering experience (or equivalent expertise)Bachelor's degree in a technical field (or 5 additional years of experience in lieu of degree)Strong experience in network design, optimization, and securityCCNA and CCNP certifications requiredProven ability to lead technical efforts and mentor teamsSecurity Clearance Requirement:Active TS/SCI with Polygraph (required)Why This Role Stands OutWork on a mission-critical program with real-world impactJoin a tight-knit, highly skilled team in a collaborative environmentGain exposure to advanced technologies and high-level decision-makingEnjoy stability, growth, and purpose—all in one roleReady to take your career to the next level? Join Leidos and help shape the future of national security.