Senior Network Engineer - Classified Infra (Secret)

RTX Corporate; Richardson (TX); On-site; USD 118,000 - 225,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

401(k) match

Paid time off

Job summary

RTX Corporate, Classified Digital Services (CDS) organization in Richardson, TX, is seeking a Senior Network Engineer to design, secure, and operate our classified network infrastructure onsite. This role requires active Secret clearance eligibility and the ability to obtain/maintain a DoD clearance.

You will lead advanced network engineering, mentor engineers, and collaborate across cybersecurity and systems teams to ensure highly available, compliant environments.

Qualifications

• Typically requires a University Degree or equivalent experience and a minimum of 8 years of prior relevant experience, or an Advanced Degree in a related field and a minimum of 5 years of experience.
• Active Secret Clearance or eligibility to obtain one.
• Advanced knowledge of networking protocols and technologies, including routing, switching, firewalls, QoS, BGP, and OSPF.
• Extensive hands-on experience with enterprise networking platforms such as Cisco and Palo Alto.

Responsibilities

• Implement, secure, and maintain enterprise network infrastructure, including routing, switching, firewalls, segmentation, and classified communication technologies.
• Lead complex network troubleshooting, root-cause analysis, and long-term remediation efforts.
• Develop and maintain secure networking standards, configuration baselines, and operational procedures.
• Oversee core network services, including DNS, DHCP, IP management, VPNs, VLANs, and traffic optimization.
• Lead network upgrades, patching, capacity planning, and security hardening.
• Maintain accurate network documentation, configurations, and environment inventories.
• Collaborate with cybersecurity, systems administration, and classified-program teams to ensure secure, highly available environments.
• Mentor junior engineers and drive improvements in network performance, resilience, and security.

Skills

Networking protocols

Routing

Switching

Firewalls

QoS

BGP

OSPF

Education

University degree

Advanced degree

Tools

Cisco

Palo Alto

Job description

RTX Corporate, Classified Digital Services (CDS) organization in Richardson, TX, is seeking a Senior Network Engineer to design, secure, and operate our classified network infrastructure onsite. This role requires active Secret clearance eligibility and the ability to obtain/maintain a DoD clearance.

You will lead advanced network engineering, mentor engineers, and collaborate across cybersecurity and systems teams to ensure highly available, compliant environments.