Senior SIM Expert (all)

SIM/eSIM profile management: Ensure correct parametrization of SIMs in compliance with GSMA and 3GPP specifications to guarantee seamless interaction between SIM, device, and network.

SIM lifecycle ownership: Oversee the entire SIM lifecycle process, from requirement engineering through to operational management.

Vendor coordination: Act as the primary interface to SIM and OTA vendors, standardizing SIM-related procedures across all partners.

Process documentation: Create and maintain clear documentation of technical processes to ensure consistency and transparency.

Project participation: Contribute to development projects that are connected to or reliant on SIM/OTA functionalities.

SIM customization and maintenance: Manage SIM customization, ongoing maintenance, and reprogramming to support operational needs.

Additional responsibilities: Handle handset interaction tracing, AuC security policy, and OTA-related processes.

Educational background: Completed studies in Electrical Engineering, Technical Computer Science, or a related field of education.

Professional experience: Approximately 5 years of experience in a similar role, such as Engineering or Roaming.

Technical and administrative skills: Strong administrative and IT abilities with a solid background in the telecom industry.

SIM troubleshooting expertise: Skilled in SIM card troubleshooting, including the ability to perform SIM, Wireshark, and network traces, provision SIMs, and change IMSIs.

eSIM provisioning knowledge: Experienced in eSIM Remote SIM provisioning following GSMA SGP 01/02 standards.

Multi-IMSI familiarity: Proficient in working with multi-IMSI applications and creating or updating related procedures.

Vendor coordination: Capable of liaising effectively with SIM vendors in collaboration with managers.

OTA systems maintenance: Experienced in maintaining OTA systems (preferred, though training can be provided if needed).

HLR knowledge: Able to perform basic checks on an HLR for SIM card provisioning.

Work approach: Self-starter mentality, proactive, and confident in taking initiative.

Team and customer orientation: Strong team player with a customer-focused mindset and a confident, competent professional appearance.