Core Network Support Engineer - Packet Core (f/m/x)
Ready to take ownership of complex 4G/5G Packet Core environments and act as the key link between operators and vendor teams? Then we would love to hear from you!
Salary: € 3000-5000 gross 14x per year + monthly amount for on‑call duty
Technologies: MME | SGW | PGW | AMF | SMF | UPF | GTP | Diameter | Linux | OpenStack | Container | 2-5G
Sector: Telecommunication
Working hours: Flexible work time with possible on‑call duty
Team Size: 10 members
What will I do here?
* Vendor Interface & Technical Support: Act as the technical point of contact for mobile network operators and interface with internal Level 3 teams.
* Packet Core Operations & Maintenance: Operate and maintain EPC and 5G Core network elements (e.g., MME, SGW, PGW, AMF, SMF, UPF) in virtualized and cloud‑based environments.
* Incident Management & Troubleshooting: Analyze and resolve complex network issues (e.g., GTP, Diameter) to ensure service availability in line with SLAs.
* Change Management & Performance Optimization: Execute software upgrades, configuration changes, and continuously monitor and optimize network performance.
* Cloud & On‑Call Support: Support deployments on OpenStack/Kubernetes environments and participate in on‑call rotations to ensure 24/7 service availability.
What should I bring with me?
* Education & Experience: Degree in Telecommunications, IT, or a related field, or equivalent hands‑on experience in mobile core network environments.
* Packet Core Expertise: Solid knowledge of EPC and/or 5G Core technologies (e.g., MME, SGW/PGW, AMF, SMF, UPF, PCRF/PCF, ePDG).
* Protocols & Troubleshooting: Strong understanding of telecom protocols (GTP, Diameter, TCP/IP) and experience in troubleshooting mobile data services.
* Linux & Cloud Fundamentals: Familiarity with Linux systems and exposure to virtualization or cloud‑native environments.
* Communication & Ownership: Team‑oriented mindset with strong communication skills, proactive approach, and ability to work under pressure in dynamic environments.
About the Company
The enterprise is a leading international telecommunications vendor, delivering advanced network solutions and supporting the evolution of mobile core networks. As part of the international Core Network team (10 members), you will take on a vendor‑facing role and support major mobile network operators in Austria in the operation, optimization, and transformation of their Packet Core (4G/5G) environments.
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