Senior Network Engineer Deputy Team Lead

Leidos; Washington (District of Columbia); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

Leidos is seeking a Senior Network Engineer Deputy Team Lead to support enterprise-scale network infrastructure at JBAB in the Washington, DC area. You will lead shift workflows, ensure network availability, and uphold DoD STIGs across NIPR/SIPR environments.

Own escalation, incident resolution, and integration with carriers and vendors. Strong Cisco IOS/IOS-XE, EIGRP/OSPF/IS-IS, and encryptor experience required. Active DoD clearance preferred.

Qualifications

• BS degree with 8+ years of relevant experience or MS with 6+ years.
• Must hold an active DoD Secret clearance.
• CCNA certification required; Security+ CE beneficial.
• Experience configuring VLANs, STP, and L2/L3 EtherChannels.
• Strong experience with EIGRP, OSPF, IS-IS routing.
• Experience with KG-17XX encryptors and HAIPE devices.

Responsibilities

• Serve as alternate to Team Lead; manage shift workflows and priorities.
• Monitor enterprise network for alerts and anomalies with SOPs.
• Triage and remediate L1–L3 incidents using automated scripts.
• Escalate outages with logs to senior engineering teams.
• Provision and optimize routers, switches, and network appliances.
• Perform OS upgrades (Cisco IOS/IOS-XE) and firmware refreshes.
• Coordinate with carriers/vendors to troubleshoot circuits.
• Plan ASIs within command-change management processes.
• Apply DoW/STIGs; remediate vulnerabilities in DoD networks.
• Manage Type-1 INE encryptors (TACLANE) at PoPs using GEM-X.
• Adhere to COMSEC handling and two-person integrity rules.
• Lead modernization projects and lifecycle refreshes.
• Support on-call rotations for rapid outage response.

Skills

CCNA

Security+ CE

EIGRP

OSPF

IS-IS

VLANs

VTP

L2/L3 EtherChannel

KG-17XX encryptors

HAIPEs

GEM-X management

Cisco IOS/IOS-XE

Education

Bachelor's degree

DoD 8140 IAT Level II/III

Tools

GEM-X management systems

Cisco IOS/IOS-XE

Job description

Leidos Digital sector is seeking an experienced Senior Network Engineer Deputy Team Lead to support mission-critical, enterprise-scale network infrastructure on the AFNCR ITS program at Joint Base Anacostia-Bolling (JBAB). In this role, you will be responsible for the end-to-end administration, deployment, security, and operational reliability of classified and unclassified core network hardware, boundary protections, High-Assurance IP Encryptors (HAIPEs), and data center switches. The ideal candidate brings deep technical expertise in Cisco enterprise and data center platforms, DoD STIG compliance, network telemetry, and collaborative incident resolution with defense agency stakeholders (e.g., 26th NOS, DISA). If this sounds like the kind of environment where you can thrive, keep reading! The Leidos Digital Sector is focused on digital modernization services such as enterprise IT solutions, cloud migrations, cybersecurity, analytics, SecDevOps, digital experience monitoring, and AI-enabled operations. Are you ready to make an impact? Begin your journey of a flourishing and meaningful career,

Work Schedule

Mon-Fri 10:00am – 6:00pm (Core Shift) | On-Call / Operational Standby Rotation.

Summary

The Senior Network Engineer Deputy Team Lead delivers mission-critical network engineering, infrastructure administration, and cyber security hardening across unclassified (NIPR) and classified (SIPR) enterprise environments. Operating within a high-tempo defense architecture, this role ensures maximum network availability, rapid fault isolation, and strict alignment with Department of War (DoW) directives and operational security mandates.

Primary Responsibilities

• Serve as the primary alternate to the Team Lead; assume operational control of shift workflows, task allocation, and daily priorities in the Team Lead’s absence.
• Maintain continuous operational surveillance of enterprise network infrastructure and transport systems to identify real-time alerts, hardware alarms, and traffic anomalies.
• Triage, isolate, and remediate Layer 1 through Layer 3 network incidents using established Standard Operating Procedures (SOPs) and automated network scripts.
• Escalate complex, cross-domain, or multi-system outages to senior leadership and advanced engineering teams with comprehensive troubleshooting logs.
• Provision, deploy, configure, and optimize enterprise-class routers, multilayer switches, and associated network appliances to ensure performance and redundancy.
• Execute operating system upgrades (Cisco IOS/IOS-XE) and firmware refreshes across the fleet.
• Liaise directly with external telecommunications carriers and hardware vendors to troubleshoot circuit degradations, resolve carrier outages, and conduct loopback testing.
• Plan, coordinate, and execute Authorized Service Interruptions (ASIs) strictly adhering to command-directed change management processes.
• Enforce DoW and local command cybersecurity directives by applying Security Technical Implementation Guides (STIGs) and remediating IAVM/patching vulnerabilities.
• Program, maintain, and manage Type-1 Inline Network Encryptors (INE) (e.g., TACLANE) at network Points of Presence (PoPs) using GEM-X or adjacent DoD element management suites.
• Strictly adhere to and maintain DoD Communications Security (COMSEC) material handling, accountability, and two-person integrity protocols.
• Lead technical execution for site modernization initiatives, lifecycle tech refreshes, and special engineering projects.
• Participate in unit on-call rotation schedules to provide rapid surge support for critical operational outages.

Basic Qualifications

• Typically requires BS degree and 8+ years of prior relevant experience or Masters with 6+ years of prior relevant experience, additional years of applicable experience will be accepted in lieu of a degree.
• Must hold and maintain an active DoD Secret clearance.
• Must meet DoD 8140 IAT Level II or III baseline certification requirements: Cisco Certified Network Associate (CCNA) .
• CompTIA Security+ CE Optional Expert-level proficiency configuring and troubleshooting Virtual LANs (VLANs), VLAN Trunking Protocol (VTP), Port Security, Spanning Tree Protocol (STP/RSTP/MSTP), 802.1Q trunking, and L2/L3 ether channels.
• Extensive hands-on experience designing, implementing, and diagnosing dynamic routing protocols, specifically EIGRP, OSPF, and IS-IS.
• Demonstrated success troubleshooting physical (Layer 1) and data link (Layer 2) transport fabrics across both unclassified and classified enclaves.
• Hands-on experience configuring, keying, and administering KG-17XX series encryptors, HAIPE devices, and GEM-X management systems.

Preferred Qualifications

• Direct hands-on administration of Cisco Identity Services Engine (ISE) for 802.1X network access control and policy enforcement.
• Experience deploying and managing software-defined infrastructure using Cisco Catalyst Center (DNA Center).
• Prior operational familiarity with Air Force District of Washington (AFDW), Air Force National Capital Region (AFNCR), or unified Air Force communications architectures.
• Experience delivering enterprise IT and communications support within high-security National Capital Region (NCR) campuses, such as The Pentagon, Joint Base Andrews (JBA), or Joint Base Anacostia-Bolling (JBAB).
• #AFNCR

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the statusquo — 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: November 4, 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 $107,900.00 - $195,050.00

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.

Leidos Leidos 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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay 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 here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All 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.