5h ago

Senior Core Network Engineer (HLR/HSS & SDM)

Europe

$150k-$200k / yearest.

full-timesenior RemoteTelecommunications

💼 About This Role

You'll design and maintain HLR/HSS subscriber templates for a fully remote team at Airalo, the world's first eSIM store. You'll lead technical deployment of Full MVNO profiles and define critical KPIs to keep over 20 million travellers connected globally.

🎯 What You'll Do

  • Design and maintain HLR/HSS subscriber templates for roaming profiles.
  • Collaborate with roaming partners to implement SoR logic in HLR/HSS.
  • Lead technical deployment of Full MVNO profiles with QoS and addressing.
  • Act as primary technical contact for System Integrators on HLR/HSS configs.
  • Define and monitor HLR/HSS KPIs like LU success rates and Diameter TPS.

📋 Requirements

  • Deep technical mastery of MAP (SS7) and Diameter (S6a/S13) protocols.
  • Extensive experience with HLR, HSS, and UDM in multi-tenant or MVNO/E environment.
  • Practical experience with Multi-IMSI applets and Sponsor IMSI roaming logic.
  • Proven ability to manage technical projects with external System Integrators under tight deadlines.

✨ Nice to Have

  • Experience with 5G UDM and AUSF.
  • Knowledge of Cloud Native Network Functions (CNF) and containerised core deployments.
  • Scripting skills (Python/Bash) for automating provisioning audits or log parsing.

🎁 Benefits & Perks

  • 🏖️ Unlimited PTO
  • 📚 Learning allowance
  • 🏋️ Wellness allowance
  • ✈️ Annual Airalo Away retreat
  • 🏠 Remote work
0 0 0