Senior Network Administrator – Enterprise & Security

United Launch Alliance, LLC.; Centennial, Northern (CO, KY); Hybrid; USD 100,000 - 166,000; Full time

Benefits offered by this job

401(k) match

Discretionary annual incentive bonus

Generous paid time off

Flexible work environments

9/80 schedule

Job summary

United Launch Alliance (ULA) in Denver is seeking a Network Administrator 3 to serve as a senior technical resource responsible for enterprise network infrastructure, including LAN/WAN, wireless, and security. You will ensure high availability, performance, and scalability while collaborating with engineering and operations teams.

The role requires a Bachelor's in a STEM field and a minimum of 4 years in enterprise networks, with hands-on experience in Cisco gear, firewalls, VPNs, and network

Qualifications

• Bachelor's degree in a STEM field from an accredited college or university.
• Four years of directly related exempt work experience may satisfy the degree requirement.
• Minimum of 4 years of experience supporting, administering, and optimizing enterprise-class network environments.
• Strong knowledge of TCP/IP, routing, switching, VLANs, VPNs, QoS, multicast.
• Hands-on experience with switches, routers, firewalls, and wireless networking.
• Ability to diagnose, troubleshoot, and resolve complex network issues quickly.
• Experience with high-availability, multi-site networks and security best practices.
• Proficiency with SolarWinds or equivalent monitoring tools and network documentation.

Responsibilities

• Administer, optimize, and improve enterprise network infrastructure.
• Lead network enhancements and critical infrastructure initiatives.
• Collaborate with cross-functional teams and engineering partners.
• Design, deploy, and maintain secure, resilient network solutions.
• Monitor performance, tune systems, and plan capacity and upgrades.

Skills

TCP/IP networking

OSPF/BGP

Cisco technologies

Network security concepts

Wireshark / packet capture

IPsec / SSL VPNs

Troubleshooting complex networks

Documentation / diagrams

Cross-functional collaboration

L3 network support

Education

Bachelor's degree in STEM

Tools

SolarWinds

Cisco switching/routers

Firewalls (Palo Alto / Cisco ASA)

NetFlow / packet analysis tooling

VPNs / remote access

Job description

United Launch Alliance (ULA) in Denver is seeking a Network Administrator 3 to serve as a senior technical resource responsible for enterprise network infrastructure, including LAN/WAN, wireless, and security. You will ensure high availability, performance, and scalability while collaborating with engineering and operations teams.

The role requires a Bachelor's in a STEM field and a minimum of 4 years in enterprise networks, with hands-on experience in Cisco gear, firewalls, VPNs, and network