Senior Classified Network Engineer — On‑Site 4x10s

Lockheed Martin Corporation; Fort Worth (TX); On-site; USD 85,000 - 158,000; Full time

Job summary

Lockheed Martin Corporation seeks a Classified Network Operations professional to join our team in Fort Worth, TX, with extended support in Palmdale, CA or Marietta, GA. You will maintain and troubleshoot classified network infrastructure and support encryption devices, firewalls, and Cisco/DNA tools, ensuring secure operations across programs such as ADP, F-22, and JSF.

The role requires strong communication, self-motivation, and readiness for on-site work with on-call duties; DoD 8570.01

Qualifications

• Experience with configuration and management of Cisco switches and CUCM.
• Experience with Cisco Call Manager and Jabber.
• Experience with configuration and management of Juniper or Palo Alto Firewalls.
• Minimum 5 years’ experience with TACLANEs (KG175s/KG250).
• Candidate must be able to lift 30 pounds.
• Confident in OSI model, IP addressing and subnetting.
• 5+ years’ experience supporting and resolving network related issues.
• Active Secret Clearance (with ability to obtain Top Secret Clearance)
• US Citizenship

Responsibilities

• Maintain and administer network infrastructure across multiple platforms.
• Support day-to-day maintenance of hardware appliances (Cisco switches, Firewalls, encryption).
• Support networking tools such as Cisco ISE, DNA Center and Cisco Call Manager.
• Plan infrastructure upgrades, install and cabling of network equipment.
• Provide customer-focused support and build strong relationships with customers and stakeholders.
• Participate in on-call rotation and travel as required.

Skills

Self-starter

Strong communication

Customer-focused support

Team collaboration

Ability to lift 30 pounds

OSI model knowledge

IP addressing and subnetting

Education

CompTIA Security+ certification

DoD 8570.01 certification eligibility

Active Top Secret clearance eligibility

CCNA/CCNP or JNCIA/JNCIS (preferred)

Tools

Cisco switches & CUCM

Cisco Call Manager & Jabber

Juniper or Palo Alto Firewalls

TACLANEs (KG175/KG250)

Cisco ISE & DNA Center

LAN/WAN troubleshooting

Job description

Lockheed Martin Corporation seeks a Classified Network Operations professional to join our team in Fort Worth, TX, with extended support in Palmdale, CA or Marietta, GA. You will maintain and troubleshoot classified network infrastructure and support encryption devices, firewalls, and Cisco/DNA tools, ensuring secure operations across programs such as ADP, F-22, and JSF.

The role requires strong communication, self-motivation, and readiness for on-site work with on-call duties; DoD 8570.01