Senior Network Engineer - Army TENCAP | TS/SCI | Ft. Belvoir, VA Leidos is seeking a Senior Network Engineer to support the development and integration of advanced ISR technologies within the Army TENCAP portfolio. In this role, you will design, implement, and optimize network architectures that connect national, commercial, and tactical intelligence capabilities to operational Army systems. This position is ideal for a seasoned network engineering leader who thrives in complex mission environments and wants to directly influence the modernization of Army ISR networks. What You'll Be Doing Serve as the Senior Network Engineer and technical authority for network design, integration, and performance. Maintain and evolve network architecture, technical baselines, and end‑to‑end network performance. Collaborate with systems, network, and cybersecurity engineers to ensure integrated solutions meet mission requirements. Build and maintain strong relationships with customers and stakeholders to ensure mission needs and objectives are fully addressed. Support the coordination of network requirements, hardware/software design, and full verification and validation activities. Design and implement network infrastructure supporting ISR data flows, cross‑domain solutions, and integration with existing intelligence platforms. Develop technical documentation, architecture diagrams, and engineering reports supporting the TENCAP mission. Provide expert recommendations on information system design, integration and test, performance analysis, administration, security, and policy. What You'll Need Current Top Secret/SCI clearance. Master's degree with 15-20 years of relevant experience. Experience with ISR systems, satellite communications, or intelligence networks (highly desirable). Familiarity with Model‑Based Systems Engineering (MBSE) tools (preferred). Senior‑level expertise in networking technologies such as Cisco, Microsoft/Linux environments, VPN technologies, encryption/crypto devices, and enterprise‑grade routing/switching (specific qualifications TBD). Demonstrated ability to operate as a senior technical authority, network engineering leader, and trusted advisor in complex, mission‑critical environments. 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: April 22, 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 $139,100.00 - $251,450.00 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.