Description:

Airalo is the world’s first and largest eSIM store, providing seamless connectivity for travelers in over 200 countries.
The Senior Core Network Engineer will manage HLR/HSS systems, ensuring efficient roaming and subscriber data management.

Requirements:

Deep technical mastery of MAP (SS7) and Diameter (S6a/S13) protocols; experience with VoLTE Roaming (S8HR) is a plus.
Extensive experience with HLR, HSS, and UDM in a multi-tenant or MVNO environment.
Practical experience with Multi-IMSI applets and roaming management.
Understanding of GSMA IREG and TADIG; familiarity with billing/settlement impacts.
Strong troubleshooting skills using tools like Wireshark.
Proven project management experience with external System Integrators and roaming partners.

Skills

Benefits