Demo

Senior Network Engineer - Corporate IT

Millennium Space Systems
El Segundo, CA Full Time
POSTED ON 12/29/2025
AVAILABLE BEFORE 2/20/2026
Company Overview

Millennium Space Systems, A Boeing Company delivers affordable, high-performance space systems for exacting customers. At Millennium, you will be part of a close-knit team working on exciting technological problems. We work in an open environment where ideas are shared across all disciplines, and there are ample opportunities for advancement based on excellence. Superstars are welcome.

At Millennium, we innovate and collaborate to make the world a better place. From the seabed to outer space, you can contribute to work that matters with a company committed to fostering an environment for every teammate that's welcoming, respectful and innovative, with great opportunities for professional growth. Find your future with us.

Job Summary

We are seeking a highly skilled and experienced IT Network Engineer to join our dynamic IT team. This pivotal role will be responsible for the design, implementation, maintenance, and optimization of our organization's network infrastructure. The IT Network Engineer will provide technical leadership, mentor junior engineers, and ensure the security, reliability, and scalability of our network operations. This position requires a deep understanding of networking principles, hands-on experience with complex network environments, and strong problem-solving capabilities.

This position's internal job code is Network Designer. Our team is currently hiring for levels 4-5.

Responsibilities

  • Design, plan, and implement robust, scalable, and secure network architectures, including LAN, WAN, wireless, and cloud networking solutions
  • Manage network security, including firewall configuration, intrusion detection/prevention systems, and access control
  • Lead the deployment of network hardware and software, including routers, switches, firewalls, VPNs, and load balancers
  • Ensure network resilience and implement disaster recovery and business continuity plans
  • Develop and maintain comprehensive network documentation, including diagrams, configurations, and policies

Minimum Qualifications

  • Must know multi-vendor switching and routing (e.g., Juniper, Cisco, Dell)
  • Expertise in routing protocols (e.g., BGP, OSPF)
  • In-depth experience with firewalls (e.g., Palo Alto, Cisco ASA)
  • Experience deploying and maintaining VPN technologies (e.g., IPsec, SSL VPN, Azure ExpressRoute)
  • Strong knowledge of switching technologies (e.g., Layer 2/Layer 3, VLANs, STP)
  • Experience with network management and automation platforms (e.g., Panorama, Mist, Apstra)
  • DoD 8140 Level 2 Cert (such as Security CE or equivalent)
  • Bachelor’s degree from an accepted and accredited college or university with a technical major, such as engineering or computer science or ten (10) years minimum work experience
  • This position requires an active U.S. Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)

Preferred Qualifications

  • Experience with network automation and scripting (e.g., Python, Ansible)
  • Proficiency in network monitoring and analysis tools (e.g., SolarWinds, Wireshark)
  • Experience with cloud networking environments (e.g., AWS, Azure)
  • Knowledge of wireless networking standards and technologies
  • Juniper Networks Certified Internet Associate (JNCIA) or higher
  • Palo Alto Networks Certified Network Security Administrator (PCNSA) or higher
  • Cisco Certified Network Associate (CCNA) or higher

Summary Pay-Range

Please note that the salary information shown below is a general guideline only of what is reasonably expected to be paid for the position. Salaries are based upon candidate experience and qualifications, as well as market and business considerations.

  • Level 4: $121,550 - $178,750
  • Level 5: $143,550 - $213,750

Before Applying, Please Note

Millennium is DDTC-registered, ITAR-compliant Company. This position is located at a facility that requires special access. Applicants MUST be U.S. citizens and eligible for a security clearance. Additionally, applicants must be willing to apply for and maintain a security clearance. We encourage all interested candidates to apply for any open position for which they feel they are qualified.

Applicant Privacy Policy

Mandatory Security Clearance and Access Process Disqualifying Criteria

Salary : $121,550 - $178,750

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