Core Engineer

🔥 14 minutes ago

🇺🇸 United States – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

👷🏻‍♀️ Engineer

👻 Ghost score 19%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Webbing

WebsiteLinkedInAll Job Openings

51 - 200 employees

📡 Telecommunications

🔒 Cybersecurity

Telecommunications • Cybersecurity

Webbing is a global data MVNO that delivers innovative enterprise-grade global connectivity and IoT services. With a secured network of over 600 mobile carriers across more than 200 countries, Webbing ensures superior data connectivity between businesses, people, and devices regardless of their location. Founded in 2010, the company specializes in developing advanced SIM technology and management platforms, offering a streamlined solution for organizations to manage their global fleet of devices. Their software allows enterprise customers to oversee and optimize data usage in real-time, promoting compliance and cost savings. Webbing combines the reach of a global carrier with the quality of a local one, offering unique, flexible solutions.

📋 Description

• Join Webbing's Core Network Engineering team • Work hands-on with live mobile core infrastructure spanning global roaming, MVNO operations, and an active 5G-SA roadmap • Troubleshoot real network issues across 3G, 4G, and 5G Standalone • Own tickets end-to-end • Lead integrations and projects on a live production network • Design, scale, and integrate network elements into a live network • Participate in network element integrations • Work with monitoring tools • Provide 24x7 on-call support

🎯 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 • Knowledge of GTP-C / GTP-U, CUPS, bearer lifecycle, session management, and data plane flows • Knowledge of Diameter & Radius, including routing, realms, application IDs (Gx, Gy, S6a), and AAA flows • Hands-on or advanced lab experience with 5G-SA architecture: AMF, SMF, UPF, NRF, and PCF • Strong understanding of GRX routing and IPX interconnect operations • Understanding of roaming processes and procedures: IR.21, IPX, and GRX operations • Hands-on experience with PGW configuration, troubleshooting, and session management • Hands-on experience with PCRF, Gx interface, and policy management • Hands-on experience with GTP Proxy, GTP-C interception, and roaming traffic steering • Experience with Diameter routing configuration, signaling troubleshooting, and analyzing Diameter flows • Experience with Radius AAA flows, authentication, accounting troubleshooting, and analyzing Radius • Experience working with monitoring tools • Ability to design, scale, and integrate a network element into a live network • Hands-on experience integrating network elements • Familiarity with APIs and basic scripting, such as Python or similar • At least 3 years of practical experience as a core engineer • Ability to perform 24x7 on-call duty • Team player

🏖️ Benefits

• 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.