Core Network Engineer – Packet Core

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

Location: Vienna, 21st district

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.

Salary

€ 3.000 to € 5.000 (paid 14 x p.a.), depending on qualifications and experience.

📩 Aplication Process:

1. Initial interview with STEINER-HITECH via video call
2. Video Call with the Core Network Team
3. We’ll guide you through the entire process!

👨 Your Contact Person:

Sascha Muff

[email protected]

+43 1 876 77 88

Talpagasse 1A, 1230 Wien

www.steiner-hitech.at