Senior Network Engineer - Data Center & Cloud Connectivity

Leidos LLC; Plyers Mill Estates (MD); On-site; USD 116,000 - 210,000; Full time

Job summary

Leidos is seeking a Senior Network Engineer to join our team at the National Digital Exploitation & OSINT Center (NDOC) in Bethesda. You will design, implement, and sustain highly available, secure data center networks, including spine-leaf topologies and fabric networks, while coordinating with IT, cybersecurity, and applications teams.

You will lead troubleshooting, optimize connectivity, and oversee ITSM tooling like ServiceNow, SolarWinds, and NetBox.

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.

Responsibilities

• Provide senior-level technical expertise in design, implementation, and sustainment of data center and enterprise networks.
• Lead planning and integration of LAN/WAN infrastructure across on-premises, cloud, and mission networks.
• Configure, optimize, and troubleshoot Cisco ACI, routers, switches, firewalls, and load balancers.
• Monitor network health and performance using ITSM tools and data center metrics.
• Provide technical leadership and incident resolution for complex network issues.
• Develop contingency and continuity plans for network resilience.
• Oversee standards for cabling, patch management, and data center operations.
• Coordinate with IT, Systems Engineering, Cybersecurity, and Applications teams on projects.

Skills

Data center networking

Cisco ACI

Nexus/Catalyst

TCP/IP DNS DHCP

Network monitoring

ITSM tools

Network security

Leadership

Education

Bachelor's degree

Tools

ServiceNow

SolarWinds

NetBox

PRTG

Job description

Leidos is seeking a Senior Network Engineer to join our team at the National Digital Exploitation & OSINT Center (NDOC) in Bethesda. You will design, implement, and sustain highly available, secure data center networks, including spine-leaf topologies and fabric networks, while coordinating with IT, cybersecurity, and applications teams.

You will lead troubleshooting, optimize connectivity, and oversee ITSM tooling like ServiceNow, SolarWinds, and NetBox.