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Network engineer experienced (T-IPC) - REF5693K

Backend Developer • On-site • Full-time • 📍 Budapest

Experienced Network Engineer role in the international IP Core team, supporting qualification, validation and lifecycle management of carrier-grade IP/MPLS network services and infrastructure.

Responsibilities

  • Perform qualification and validation testing of network hardware and software
  • Execute functional, integration and regression testing for IP/MPLS-based services
  • Validate VPN services running on LER/CPE platforms
  • Test and qualify IP Backbone components and Route Reflector functionality
  • Analyze test results, identify defects and support structured troubleshooting
  • Capture and analyze network traffic using Wireshark
  • Update and maintain network configuration documentation (TIKs), technical documentation and test documentation
  • Read and interpret RFCs and vendor documentation
  • Collaborate closely with network engineering, development and operations teams
  • Contribute to continuous improvement of testing processes, automation initiatives and quality standards

Requirements

  • Experience in network engineering, network testing or network operations
  • Strong understanding of TCP/IP networking
  • Solid knowledge of IPv4 and IPv6
  • Good understanding of routing protocols, especially BGP and IS-IS
  • Good knowledge of Ethernet, VLANs and MPLS technologies
  • Good understanding of DNS and DHCP
  • Basic Linux administration skills
  • Basic knowledge of network security concepts
  • Understanding of redundancy and high availability concepts
  • Strong analytical and logical troubleshooting skills
  • Experience working with router and switch CLI
  • Experience analyzing packet captures using Wireshark
  • Ability to read and understand RFCs and vendor documentation
  • Basic scripting skills (Python, Perl or similar)
  • Experience with Cisco and/or Juniper environments
  • Good documentation skills and a structured working style
  • Team-oriented, proactive, eager to learn new technologies
  • Good command of written and spoken English

Nice to have

  • Knowledge of L2VPN and L3VPN technologies
  • Experience with LAC/LNS (L2TP), RADIUS and/or DIAMETER
  • Experience with IP Backbone and service provider networks
  • Knowledge of LER/CPE platforms
  • Experience with Route Reflectors
  • Experience with Segment Routing (SR-MPLS and/or SRv6)
  • Knowledge of EVPN/VXLAN
  • Experience with network automation using Python, Ansible, GitLab or similar tools
  • Understanding of automated production and deployment processes
  • Experience with Cisco IOS-XR and/or Juniper JunOS
  • German language skills

Soft skills

Team-oriented and proactive attitudeEagerness to learn new technologiesStructured, precise working style
Languages: Angol: Felsőfok, Német: Alapfok (előny)

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