Cubic Telecom is a leading provider of connectivity solutions and analytics services that help vehicle and IoT device manufacturers manage and grow revenue streams.
We are seeking an energetic Network Operations Engineer to ensure the seamless operation of our global connectivity platform, supporting critical services for IoT devices, automotive solutions, and mobile networks.
This role involves troubleshooting complex network issues, particularly in relation to SS7, Diameter, S6a signalling, VoLTE, SMS, and CS voice. You will work proactively to monitor and analyse network performance, using advanced diagnostic tools to identify and address problems related to network attach failures, data session setup issues, and performance inconsistencies during roaming scenarios.
Responsibilities:
* Support the introduction of new services, ensuring they meet technical and performance standards.
* Work closely with vendors to ensure timely delivery and optimal performance of services.
* Proactively monitor and troubleshoot network issues, ensuring minimal disruption to customers.
* Collaborate with internal stakeholders and customers to resolve service-affecting issues.
* Conduct deep technical investigations using protocol analysis tools to identify and resolve signalling and data session-related problems.
* Work with MNO partners to facilitate the seamless introduction of new services, including managing configurations and troubleshooting signalling issues during service deployment.
Requirements:
* Minimum 4 years' experience working in the core network domain.
* Strong knowledge of SS7 protocol to diagnose and resolve signalling issues.
* Familiarity with Diameter signalling, particularly the S6a interface for handling authentication, authorisation, and mobility management.
* Experience diagnosing VoLTE-related call drops, quality issues, and troubleshooting SIP signalling in IMS networks.
* Deep understanding of SMS signalling, including delivery issues, message routing, and troubleshooting MT/MO message failures.
* Knowledge of mobile roaming solutions and related technologies, including 3G and LTE attach procedures.
* Expertise in resolving location update failures and authentication problems.
* Ability to use tools like Wireshark to analyse signalling traffic and diagnose protocol-specific issues.