Core Engineer (Core Network Engineering Team)
Posted Sep 29, 2026 · 8h ago
- Salary
- PLN 157,200–PLN 210,000 / year
- Employment
- Full Time
Description
Czym będziesz się zajmować?
Requirements
- Deep understanding of MNO/MVNO architecture and end-to-end GTP flow design Complete familiarity with 3GPP standards across 2G/3G/4G and 5G, including: GTP-C / GTP-U, CUPS
- bearer lifecycle, session management, data plane flows Diameter & Radius
- routing, realms, application IDs (Gx, Gy, S6a), AAA flows 5G-SA architecture
- AMF, SMF, UPF, NRF, PCF
- hands-on or advanced lab experience
- Strong understanding of GRX routing and IPX interconnect operations …