Senior Network Admin – Enterprise Networking (Denver)

United Launch Alliance, LLC.; Centennial (CO); On-site; USD 90,000 - 130,000; Full time

Job summary

United Launch Alliance (ULA) is seeking a Network Administrator 3 to serve as a senior technical resource responsible for administration, optimization, and continuous improvement of the enterprise network infrastructure in a Denver-area environment.

The role requires 4+ years in enterprise networks, deep TCP/IP knowledge, and hands-on experience with switches, routers, firewalls, and wireless systems. Join a mission-critical team supporting ULA’s operations.

Qualifications

• Bachelor's degree in a STEM (Science, Technology, Engineering, Mathematics) field from an accredited college or university.
• Four years of directly related exempt work experience may be used to satisfy the bachelor's degree requirement.
• Minimum of 4 years of experience supporting, administering, and optimizing enterprise-class network environments.
• Comprehensive knowledge of TCP/IP networking principles, including routing, switching, VLANs, VPNs, QoS, and multicast technologies.
• Hands-on experience deploying, configuring, and maintaining enterprise network infrastructure, including switches, routers, firewalls, and wireless networking solutions.
• Demonstrated ability to independently diagnose, troubleshoot, and resolve complex network issues in fast-paced, mission-critical environments.
• Experience supporting high-availability, multi-site network architectures, ensuring reliability, scalability, and operational continuity.
• Strong understanding of network security concepts, industry best practices, and defense-in-depth methodologies.
• Advanced expertise with dynamic routing

Responsibilities

• Administer enterprise network infrastructure and operations.
• Lead the implementation of network enhancements and initiatives.
• Collaborate with cross-functional teams, stakeholders and engineering partners.
• Perform proactive monitoring, performance tuning, and capacity planning.
• Ensure secure, resilient network solutions aligned with business objectives.
• Troubleshoot escalated issues to maintain high availability and uptime.

Skills

TCP/IP networking

Routing & Switching

VLANs

VPNs

QoS

Network security

Dynamic routing

High availability

Education

Bachelor's degree in STEM

Job description

United Launch Alliance (ULA) is seeking a Network Administrator 3 to serve as a senior technical resource responsible for administration, optimization, and continuous improvement of the enterprise network infrastructure in a Denver-area environment.

The role requires 4+ years in enterprise networks, deep TCP/IP knowledge, and hands-on experience with switches, routers, firewalls, and wireless systems. Join a mission-critical team supporting ULA’s operations.