Senior Roaming & Satellite Network Support Engineer

Iridium; Tempe (AZ); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Iridium is seeking a Roaming Technical Support Engineer to act as a technical escalation point for roaming and satellite services. You will troubleshoot complex issues, collaborate with partners, and support rollout and validation of new services.

The role requires 5+ years in roaming operations or similar, with strong GSM/UMTS/LTE/5G knowledge, signaling protocol experience, and excellent communication. Hybrid work and 24x7 on-call duties apply.

Qualifications

• Bachelor’s degree in engineering or technical field or equivalent work experience.
• 5+ years in roaming operations or NOC/network support roles.
• Strong knowledge of GSM, UMTS, NB-IoT, LTE, 3GPP and 5G networks.
• Experience with signaling protocols SS7, Diameter, GTP, SIP, MAP, CAMEL.
• Proficient in Microsoft Word, PowerPoint, and Excel.
• Strong communication and analytical problem-solving skills.
• Ability to prioritize tasks and take ownership.

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

Support engineering

Telecommunications

Education

Bachelor’s degree in engineering or technical field

Tools

Network analyzers

Monitoring software

Ticketing systems

AWS

SQL database administration

Job description

Iridium is seeking a Roaming Technical Support Engineer to act as a technical escalation point for roaming and satellite services. You will troubleshoot complex issues, collaborate with partners, and support rollout and validation of new services.

The role requires 5+ years in roaming operations or similar, with strong GSM/UMTS/LTE/5G knowledge, signaling protocol experience, and excellent communication. Hybrid work and 24x7 on-call duties apply.