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About the Role
Description You will join the Core Network Engineering team at Webbing, working hands-on with our live mobile core infrastructure spanning global roaming, MVNO operations, and an active 5G-SA roadmap. The role is technical and operational. You will troubleshoot real network issues across 3G, 4G, and 5G Standalone, own tickets end-to-end, and lead integrations and projects on a live production network. We are a focused team that moves fast and takes full ownership of activities end to end. Engineers here are expected to grow quickly into independent contributors 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 • Understanding of roaming processes and procedures: IR.21,IPX, and GRX operations • Hands-on experience • ◦ PGW - configuration, troubleshooting, session management • ◦ PCRF- Gx interface, policy management • ◦ GTP Proxy - GTP-C interception, roaming traffic steering • Diameter - routing configuration, signaling troubleshooting, experience analyzing Diameter flows. • Radius - AAA flows, authentication, and accounting troubleshooting, experience analyzing Radius. • Understanding of roaming processes and procedures (IR.21, familiarity with IPX and GRX operations). • Working with monitoring tools Our engineer should have the following skills: • Ability to design, scale, and integrate a network element into a live network. • Hands-on experience in integration between network elements. • Comfortable working under pressure during live network incidents • At least 3 years of practical experience as a core engineer. • Familiar with APIs and basic scripting (Python or similar). • 24x7 On-call duty. • Team player About Webbing Founded in early 2010, Webbing is a global data MVNO that delivers enterprise grade, global connectivity and IoT services across more than 200 countries and 600+ mobile carriers' networks. Webbing's secured network delivers network protection and web content intelligence. Enterprise customers can manage, monitor, and optimize data usage in real-time with Webbing's powerful software platform. Gain visibility by application type and have the power to white list applications and limit non-business applications with the click of a button, saving money and improving compliance. What we offer • An exciting and challenging workplace with great skill and knowledge development opportunities. • The opportunity to join a team of highly professional specialists in an international environment. • The opportunity for professional development within a reputable international innovative and growing company. • Meal Vouchers. • Medical insurance.
