Network Administrator III

Company Overview

Iridium is an award-winning and innovative satellite communications company with bragging rights to the only network that offers voice and data connectivity anywhere in the world. For over 20 years, Iridium’s unique network and services have supported critical communications needs for individuals, businesses, and the evolving Internet of Things.

At Iridium, we understand the importance of staying connected and the limitations of traditional communications networks. People across the globe, including first responders, humanitarians, global militaries, scientific researchers, and lone workers, as well as ships, aircraft and remote operations all rely on Iridium to stay connected. We take our responsibility for providing these essential communications very seriously and pride ourselves on offering a reliable lifeline when needed.

Likewise, Iridium is committed to providing an exciting and innovative workplace, where employees are challenged to think outside the box and collaborate on new, bold ideas and solutions. Our talented teams are passionate about their work and the impact our company makes around the world. Iridium fosters an empowering and inclusive culture that allows employees to genuinely be their best selves.

We are looking for others who want to join this truly unique company that celebrates our employees and provides the opportunity to truly make a difference in the world.

Iridium is seeking a highly motivated and technically skilled Network Administrator III to join our Network Operations team. In this role, you will work alongside a collaborative group of network, firewall, and infrastructure professionals supporting critical enterprise and operational environments. You will help maintain and modernize a complex network and security infrastructure spanning routing, switching, firewalls, remote access, monitoring, and network access control systems.

This position is ideal for someone who enjoys solving challenging technical problems, takes ownership of their work, communicates proactively, and thrives in a fast-paced operations environment. Successful candidates are curious, adaptable, team-oriented, and committed to delivering reliable and secure solutions that support the business.

• Maintain, deploy, and support enterprise network and security infrastructure including routing, switching, firewalls, VPN connectivity, and network access control systems
• Support technologies including Cisco Catalyst and Nexus platforms, Forti Gate firewalls, Cisco ASA firewalls, Cisco ISE, Solar Winds, and related enterprise infrastructure platforms
• Perform troubleshooting and root cause analysis across LAN, WAN, datacenter, and remote access environments
• Monitor network and security system performance, analyze trends, tune configurations, and ensure overall reliability and availability
• Collaborate with cross-functional teams including security, systems, cloud, and application teams to support operational and business initiatives
• Participate in network modernization and infrastructure lifecycle projects involving segmentation, remote access, automation, and security enhancements
• Research network and security technologies, industry trends, and best practices to support continuous improvement initiatives
• Assist in the development and maintenance of technical documentation including network diagrams, implementation plans, standard operating procedures, and operational best practices
• Present technical findings, recommendations, and troubleshooting results clearly to both technical and non-technical audiences
• Participate in after-hours maintenance activities and provide 24/7 on‑call support on an as‑needed basis

• Bachelor’s degree in Computer Science, MIS, Engineering, or related program of study, OR equivalent experience in lieu of degree
• 5+ years of experience supporting enterprise network and/or security infrastructure
• Strong understanding of enterprise networking fundamentals including TCP/IP, routing, switching, VLANs, redundancy, segmentation, and network troubleshooting methodologies
• Experience supporting enterprise routing…