Network Engineer III

Leidos; Titusville (FL); Hybrid; USD 92,000 - 167,000; Full time

Job summary

Leidos is seeking a Network Engineer to design, implement, and optimize Cisco-based wireless architectures for NASA OCIO Enterprise Network. The role emphasizes RF analysis, site surveys, and strong collaboration with NASA teams to deliver secure, scalable wireless solutions.

You will lead configuration of Cisco ISE and Catalyst Center, develop Splunk dashboards, and drive incident resolution while ensuring operational continuity across multiple centers.

Qualifications

• Bachelor's degree in a related technical field; additional experience may substitute.
• 10+ years in WLAN and wired LAN in large-scale enterprises.
• Expertise in Cisco wireless, 802.11 standards, APs, WLCs, and management platforms.
• Strong RF design and site survey skills with Ekahau, iBwave, or similar tools.
• Experience with NAC via 802.1X across wired and wireless networks.
• Excellent communication and cross-team collaboration abilities.

Responsibilities

• Lead design and optimization of Cisco Catalyst-based wireless architectures.
• Gather requirements with NASA teams and design enterprise wireless solutions.
• Perform advanced RF analysis, site surveys, and AP placement.
• Configure and optimize Cisco ISE to enforce NAC policies.
• Manage network configurations and Splunk dashboards for monitoring.
• Lead troubleshooting and root-cause analysis of complex incidents.
• Advise NASA government customers on best practices.
• Collaborate to plan complex network changes while maintaining continuity.
• Develop and maintain comprehensive network documentation.

Skills

Wireless LAN engineering

Wi‑Fi design & optimization

RF analysis

NAC with 802.1X

Cisco wireless management

Troubleshooting

Communication skills

Education

Bachelor's degree in a related technical field

Tools

Ekahau

iBwave

AirMagnet

Cisco Catalyst Center

Cisco ISE

Splunk

Job description

Leidos is seeking a highly skilled and experienced Network Engineer to support the Advanced Enterprise Global Information Technology Solutions (AEGIS) program and join a large engineering team responsible for evolving and sustaining the NASA Office of the Chief Information Officer (OCIO) Enterprise Corporate Network.

The selected candidate will provide senior-level technical expertise in the design, configuration, optimization, and troubleshooting of NASA's enterprise network infrastructure, with a primary focus on Wi-Fi technologies. This role requires advanced knowledge of Radio Frequency (RF) principles, wireless protocols, and Cisco wireless solutions to ensure optimal network performance, reliability, and security.

The Network Engineer will leverage enterprise management and security tools, including Cisco Catalyst Center for network management, Cisco Identity Services Engine (ISE) for access control, and Splunk for network monitoring and analysis. The ideal candidate will possess extensive knowledge of network technologies, security protocols, and hands-on experience with these tools to support NASA's Zero Trust Architecture (ZTA) objectives while maintaining a secure, reliable, and highly available network environment.

Work Arrangement: This position currently offers a hybrid work arrangement; however, candidates must reside within 50 miles or a reasonable commuting distance of a NASA facility to meet customer onsite support requirements.

• Ames Research Center: Mountain View, CA
• Armstrong Flight Research Center: Edwards, CA
• Glenn Research Center: Cleveland, OH
• Goddard Space Flight Center: Greenbelt, MD
• NASA Headquarters: Washington, DC
• Johnson Space Center: Houston, TX
• Kennedy Space Center: Merritt Island, FL
• Langley Research Center: Hampton, VA
• Marshall Space Flight Center: Huntsville, AL
• Stennis Space Center: Bay St. Louis, MS
• Wallops Flight Facility, Wallops Island, VA
• White Sands Complex: Las Cruces, NM

PRIMARY RESPONSIBILITIES

• Lead the design, implementation, and optimization of complex Cisco Catalyst-based wireless architectures, including FlexConnect, Bridge Mode, and Fabric-Enabled Wireless (SD-Access Wireless), ensuring scalable, secure solutions aligned with NASA mission requirements.
• Lead technical requirements gathering and collaborate with NASA customers, network architects, engineers, cybersecurity, and application teams to design and implement enterprise wireless solutions and network infrastructure enhancements.
• Perform advanced wireless RF analysis, predictive modeling, and site surveys using Ekahau to optimize access point placement, coverage, capacity, and performance across diverse environments, including office spaces, conference rooms, and outdoor locations.
• Provide technical leadership in the configuration, integration, and optimization of Cisco Identity Services Engine (ISE) to enforce Network Access Control (NAC) policies across wired and wireless environments.
• Manage and optimize enterprise network configurations, inventory, and performance using Cisco Catalyst Center (formerly DNA Center/DNAC), and develop Splunk dashboards and alerts to monitor network performance, security events, and operational risks.
• Lead advanced troubleshooting, root cause analysis, and resolution of complex network incidents and escalated customer-impacting issues to minimize downtime and ensure network stability.
• Serve as a senior technical advisor to NASA Government customers, providing independent assessments, recommendations, and guidance on network operations, maintenance, modernization, and industry best practices.
• Collaborate with NASA customers and technical teams to plan and execute complex network infrastructure changes and modifications while maintaining operational continuity.
• Develop and maintain comprehensive technical documentation, including network designs, configurations, operational procedures, troubleshooting guides, incident resolutions, and technical presentations.
• Perform additional duties as assigned.

BASIC QUALIFICATIONS

• Bachelor's degree in Computer Science, Management Information Systems, Cybersecurity, or a related technical field. Additional years of experience in lieu of degree may be considered.
• Minimum of 10 years of combined experience in wireless LAN (WLAN) and wired LAN engineering within large-scale enterprise network environments.
• Advanced knowledge of Wi‑Fi technologies and IEEE 802.11 standards (a/b/g/n/ac/ax), with extensive experience designing, implementing, and optimizing Cisco wireless infrastructure, including access points, wireless LAN controllers, and management platforms such as Cisco Prime Infrastructure and Catalyst Center.
• Demonstrated expertise in wireless RF design, site surveys, and performance optimization using Ekahau, iBwave, AirMagnet, or comparable tools.
• Advanced understanding of enterprise LAN architectures, including Power over Ethernet (PoE), three-tier network topologies, Software-Defined Access (SD-Access), Cisco routing and switching, multicast, and Quality of Service (QoS), including wireless QoS implementation.
• Extensive experience implementing and supporting Network Access Control (NAC) solutions using IEEE 802.1X authentication across wired and wireless environments.
• Strong analytical, troubleshooting, and problem‑solving skills, with demonstrated ability to independently resolve complex enterprise network issues and recommend effective engineering solutions.
• Excellent written and verbal communication skills, with the ability to collaborate across technical teams, engage government customers, and communicate complex technical concepts effectively.

CLEARANCE REQUIREMENTS

• U.S. Citizenship is required.
• Ability to obtain and maintain a Public Trust.

PREFERRED QUALIFICATIONS

• Experience with Cisco Fabric-Enabled Wireless (SD-Access Wireless) architectures and deployments.
• Proficiency with Splunk for network log management, analysis, and development of custom dashboards, alerts, and reports.
• Advanced knowledge of networking protocols, including OSPF, BGP, MPLS, and IPSec.
• Familiarity with Software-Defined WAN (SD‑WAN) solutions and network automation tools, including Ansible and Terraform.
• Demonstrated ability to provide technical guidance and mentorship to other network engineers.
• Relevant industry certifications, including CWNA, CWDP, CWSP, CWNE, CCNP Enterprise (Wireless Design and/or Wireless Implementation specialization), or CCIE Enterprise Wireless. Additional certifications in network security and routing/switching are a plus.

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: 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 $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About 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 $16.7 billion for the fiscal year ended January 3, 2025. 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 at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

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.