Senior Roaming Satellite Network Engineer

Iridium; Tempe (AZ); Hybrid; USD 83,000 - 108,000; Full time

Job summary

Iridium is seeking a Roaming Technical Support Engineer to serve as a technical escalation point for roaming and satellite services. You will troubleshoot complex roaming and core network issues and collaborate with internal teams, service partners, and roaming partners.

This role requires hands-on troubleshooting, strong ownership, and the ability to manage multiple tasks in a fast-paced, hybrid office environment with occasional travel.

Qualifications

• Bachelor’s degree in engineering or a technical field; equivalent work experience.
• 5+ years in roaming operations, NOC, or telecom support.
• Strong knowledge of GSM, UMTS, NB-IoT, LTE, 3GPP, and 5G networks.
• Experience with signaling protocols: SS7, Diameter, GTP, SIP, MAP, CAMEL.
• Proficiency with Microsoft Word, PowerPoint, and Excel.

Responsibilities

• Investigate and resolve advanced roaming, satellite, and network service issues (voice, SMS, data).
• Analyze SS7, Diameter, GTP, IPX, and IP networking traffic using diagnostic tools.
• Provide second- and third-level support for escalations from Customer Care on roaming and existing Iridium services.
• Perform IREG/International Roaming Testing and TADIG testing for new roaming partners and service updates.
• Conduct product and service testing for alpha/beta trials and network changes.
• Validate configurations, routing updates, and service interoperability.
• Serve as technical contact for Service Partners, Value-Added Manufacturers, and roaming operators.
• Collaborate with engineering, network operations, and fraud teams to resolve issues.
• Train internal teams on new products, services, and troubleshooting methods.
• Track and report on roaming KPIs, performance, and incident trends.
• Document troubleshooting steps, configurations, and best practices.

Skills

Roaming operations

NOC/network administration

Technical troubleshooting

Signaling protocols knowledge

Education

Bachelor’s degree in engineering or related technical field

Job description

Iridium is seeking a Roaming Technical Support Engineer to serve as a technical escalation point for roaming and satellite services. You will troubleshoot complex roaming and core network issues and collaborate with internal teams, service partners, and roaming partners.

This role requires hands-on troubleshooting, strong ownership, and the ability to manage multiple tasks in a fast-paced, hybrid office environment with occasional travel.