Senior Core Network Engineer (HLR/HSS & SDM) - Airalo - Remote
Network Engineer
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Job Description
Airalo is seeking a Senior Core Network Engineer specializing in HLR/HSS & SDM to design, deploy, and troubleshoot roaming infrastructure, ensuring reliable global connectivity for millions of travelers. The role requires deep expertise in MAP and Diameter protocols, subscriber management, and collaboration with roaming partners and system integrators.
Company Information
| Location | Active listings |
|---|---|
| Remote - Global | 25 |
| Remote | 14 |
| Remote - Europe | 1 |
| Remote-Global | 1 |
| Role type | Active listings |
|---|---|
| Director | 3 |
| Data Scientist | 2 |
| Network Engineer | 2 |
| Senior PHP Engineer | 2 |
| Data Analyst | 2 |
| DevSecOps Engineer | 2 |
| Quality Assurance Engineer | 2 |
| Finance Professional | 2 |
| Site Reliability Engineer | 2 |
| Customer retention specialist | 1 |
| Commercial Pricing | 1 |
| Senior Legal Executive | 1 |
| Senior Director | 1 |
| Senior Manager | 1 |
| Senior Engineer | 1 |
| Marketing Manager | 1 |
| Growth Strategy & Operations Manager | 1 |
| Senior QA Engineer | 1 |
| Finance Analyst | 1 |
| Principal Accountant | 1 |
| Product Designer | 1 |
| Designer | 1 |
| Engineer | 1 |
| Data Engineering Manager | 1 |
| Performance Marketing Director | 1 |
| Senior Frontend Engineer | 1 |
| Technology | 1 |
| Content Designer | 1 |
| Software Engineer | 1 |
| Analytics Engineering Manager | 1 |
| Marketing Specialist | 1 |
| Role level | Active listings |
|---|---|
| Mid-Level | 15 |
| Senior | 6 |
| Manager | 5 |
| Executive | 2 |
Airalo appears in 41 indexed job postings in JobCrawls' Finland dataset since October 2023. In that historical index, the strongest location signals for this employer are Remote - Global, Remote, and Remote - Europe.
Data shown is based on historical job postings from our database.
Job Details
Responsibilities
- Design and maintain HLR/HSS subscriber templates
- Collaborate with roaming partners on SoR logic
- Lead deployment of MVNO profiles
- Act as technical contact for System Integrators
- Monitor KPIs like LU success rates and TPS limits
Requirements
- Deep knowledge of MAP (SS7) and Diameter (S6a/S13) protocols
- Experience with HLR, HSS, and UDM in MVNO environments
- Experience with Multi-IMSI applets and roaming logic
- Understanding of GSMA IREG and TADIG standards
- Troubleshooting skills with Wireshark or roaming platforms
- Project management experience with external partners
Skills & Technologies
Education Level
None required