Network Administrator III

Iridium is an award-winning satellite communications company known for its global network that supports critical communications needs for various industries. We are currently seeking a Network Administrator III to join our Network Operations team.

About the role

The Network Administrator III will work with a team to maintain and modernize a complex network and security infrastructure, including routing, switching, firewalls, remote access, monitoring, and network access control systems. This role involves troubleshooting, monitoring, and collaborating with cross-functional teams to support operational and business initiatives.

Responsibilities

• Maintain, deploy, and support enterprise network and security infrastructure
• Support technologies including Cisco Catalyst and Nexus platforms, FortiGate firewalls, Cisco ASA firewalls, Cisco ISE, SolarWinds, and related enterprise infrastructure platforms
• 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
• Aid 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

Requirements

• Bachelor’s degree in Computer Science, MIS, Engineering, or related field, or equivalent experience
• 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
• Hands-on experience with enterprise firewall technologies such as Fortinet, Palo Alto, Cisco ASA, or Check Point
• Familiarity with enterprise monitoring and troubleshooting platforms such as SolarWinds, Wireshark, or equivalent tools
• Strong troubleshooting and analytical skills with the ability to independently diagnose and resolve complex technical issues
• Strong communication skills with the ability to effectively collaborate across teams and communicate technical concepts clearly
• Comfortable working in a fast-paced operational environment with shifting priorities and multiple concurrent initiatives
• Strong customer service mindset with a focus on reliability, responsiveness, and teamwork

Qualifications

• Experience supporting 24/7 operational or mission-critical environments
• Experience working in datacenter, telecommunications, or highly available enterprise environments
• Familiarity with Cisco ISE, TACACS+, MFA integrations, and network access control technologies
• Experience supporting cloud-connected infrastructure and hybrid networking environments
• Experience troubleshooting network connectivity issues across both infrastructure and endpoint operating systems including Windows and Linux/UNIX
• Strong documentation habits and experience creating operational procedures and implementation plans

Skills

• Cisco CCNP, Fortinet NSE/FCP, Palo Alto, or equivalent networking/security certifications

Benefits

• Base Pay Range: $90,000 - $120,000 USD
• Employee benefits include medical, dental, and vision insurance coverage; 401(k) retirement plan options; paid time off and paid holidays; paid parental leave; and other discounts and perks.