Leidos is looking for a Senior Network Engineer to join our team in supporting the National Digital Exploitation & OSINT Center (NDOC). The Senior Network Engineer provides senior-level technical expertise in the planning, coordination, implementation, and sustainment of major computer network initiatives.
This is a 100% on-site position. All work must be performed at the customer site in Bethesda at the Intelligence Community Campus.
Primary Responsibilities:
Provide senior-level technical expertise in the design, implementation, and sustainment of highly available, scalable, and secure data center and enterprise network environments, including spine-leaf topologies, virtualized environments, and fabric networks.
Support the planning and integration of LAN/WAN infrastructure, ensuring seamless and secure connectivity among on-premises systems, cloud environments, and external mission networks.
Provide technical leadership in the configuration, optimization, and troubleshooting of Cisco ACI, routers, switches, firewalls, and load balancers in support of mission-critical operations.
Analyze and optimize network connectivity and performance across servers, storage, hypervisors, and data center interconnects to support network throughput, availability, and reliability requirements.
Oversee the use of network monitoring and ITSM tools such as ServiceNow, SolarWinds, NetBox, and PRTG to monitor network health, availability, performance, and incident resolution.
Lead technical troubleshooting and incident resolution for complex network and data center issues, coordinating root cause analysis, corrective actions, and recovery activities as appropriate.
Develop and maintain contingency and continuity plans and procedures to support network resilience and minimize service disruptions during outages, maintenance events, and other operational activities.
Provide technical oversight of network infrastructure standards and practices, including cabling, patch management, structured wiring, equipment configuration, documentation, and data center operations.
Analyze network segmentation, performance, capacity, and latency requirements and recommend optimization strategies across physical and virtual environments.
Coordinate with IT, Systems Engineering, Cybersecurity, and Application teams to support cross-functional projects and ensure network implementations align with established security, technical, and mission requirements.
Provide technical oversight of ServiceNow ITSM activities, including work assignment, incident and change tracking, documentation, escalation, and resolution in accordance with established procedures and SLAs.
Prepare and present technical status reports, incident summaries, performance metrics, and recommendations to program leadership and government stakeholders.
Provide technical support and leadership for network modernization and data center consolidation initiatives, helping to develop implementation approaches and ensuring assigned activities meet established technical, budgetary, and schedule requirements.
Evaluate emerging network technologies and provide recommendations regarding solutions that may improve data center efficiency, scalability, availability, and cybersecurity posture.
Provide technical guidance, mentoring, and work direction to network engineers and technicians, assisting with complex technical issues and supporting professional development.
Assist leadership with resource planning, work schedules, and personnel coverage to support operational and mission requirements.
May support the evaluation of resumes and technical qualifications for network engineering vacancies and participate in candidate interviews as a technical subject matter expert.
May provide input to leadership regarding the performance and development of assigned personnel, including periodic feedback and assessments against established employee goals and corporate guidelines.
May review and approve timesheets for assigned personnel in accordance with corporate standards and established procedures.
Provide after-hours or on-call technical support as required for critical outages, service interruptions, and other mission-impacting events.
Basic Qualifications:
Proven experience designing, implementing, and maintaining data center network architectures with a focus on scalability, redundancy, and security.
Hands-on experience with Cisco ACI, Nexus, and Catalyst platforms, including configuration, monitoring, and troubleshooting.
Strong understanding of TCP/IP, DNS, DHCP, OSPF, BGP, VLANs, HSRP, SNMP, and multicast protocols.
Proficiency with network monitoring and ITSM tools such as ServiceNow, SolarWinds, and NetBox.
In-depth knowledge of network security principles, including firewall rules, ACLs, VPNs, and secure remote access.
Familiarity with network asset lifecycle management, capacity planning, and hardware procurement processes.
Experience leading teams and managing performance under shifting operational priorities.
Excellent written and verbal communication skills, with the ability to brief senior leadership and government stakeholders.
Candidate must meet DoD 8140/8570.11- IAT Level II certification requirements (Security+ CE, CCNA Security, GSEC, or SSCP) with a valid Computing Environment (CE) certification.
Clearance:
Due to the nature of the government contracts we support, US Citizenship is required.
TS/SCI with Poly required for Position or TS/SCI and willingness to get a poly.
Education:
Requires a Bachelor’s degree and 12+ years of relevant experience. Additional years of relevant experience may be considered in lieu of a degree
Preferred Qualifications:
Active Cisco Certified Network Associate (CCNA) certification
CCNP or CCIE certification
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:September 14, 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.
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.
Skills Required
- Bachelor's degree and 12+ years of relevant experience; additional relevant experience may substitute for the degree
- Experience designing, implementing, and maintaining scalable, redundant, and secure data center network architectures
- Hands-on experience with Cisco ACI, Nexus, and Catalyst platforms
- Strong understanding of TCP/IP, DNS, DHCP, OSPF, BGP, VLANs, HSRP, SNMP, and multicast protocols
- Proficiency with ServiceNow, SolarWinds, and NetBox
- In-depth knowledge of firewall rules, ACLs, VPNs, and secure remote access
- Experience with network asset lifecycle management, capacity planning, and hardware procurement
- Experience leading teams and managing performance under shifting operational priorities
- Excellent written and verbal communication skills, including briefing senior leadership and government stakeholders
- DoD 8140/8570.11 IAT Level II certification, such as Security+ CE, CCNA Security, GSEC, or SSCP, with a valid Computing Environment certification
- U.S. citizenship
- TS/SCI clearance with polygraph, or TS/SCI with willingness to obtain a polygraph
- Active Cisco Certified Network Associate certification
- CCNP or CCIE certification
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
