EPC Gateway DevOps Engineer (f/m/d)

About the role

T-Systems Iberia is looking for an EPC Gateway DevOps Engineer (f/m/d) to join the ACS Squad, which manages critical IMS components in the Voice & Messaging organization of Deutsche Telekom Technik. The role covers the full lifecycle of the Ericsson ePDG (WMG) hosted on Ericsson's NFVIO, including operations, incident and problem management, change management and delivery of major release upgrades.

Key responsibilities

• Manage the lifecycle of the ePDG: define enhancements, develop, test, implement and operate the solution (monitoring, troubleshooting, patching, coordinating with technical teams and the vendor)
• Handle incidents: identify issues, mitigate customer impact, restore stability and solve them, including on-call duty
• Manage problems: request vendor support according to SLA, provide KPI statistics and review SLA reports
• Plan, test, approve and implement changes, including night-shift maintenance windows, and plan major release upgrades with RACI and timelines
• Improve testing, monitoring and troubleshooting procedures, and deliver operational documentation (MoPs, best practices)
• Define and run acceptance tests, and support complex projects across development, QA and project planning
• Develop strategies for automated monitoring and change, including VNF deployments with VNF-M, and set up disaster recovery plans
• Support the operations team, implement security measures, monitor reports and apply patches

Required profile

• Several years of experience in ePC ePDG operations with a strong focus on Voice over WiFi services
• Knowledge of virtual evolved packet core functionality, operation and monitoring
• Experience onboarding VNFs and documenting technical requirements for colleagues
• Classic and agile cooperation, and willingness to work in maintenance windows and on-call duty

Required skills

• Network function virtualization (compute, memory, network) and management tools (SDN, OpenStack, VNFM)
• Monitoring, logging and alerting (Prometheus, Grafana)
• IPv4/IPv6 troubleshooting (TCP, UDP, BGP, BFD) and L2 switching (Arista, Juniper Junos)
• ETSI-MANO, VNF-M, OpenStack and Kubernetes basics
• Ubuntu, SUSE and datacenter networking

What we offer

• Hybrid work model and flexible working hours
• Customized training via Coursera, weekly language classes and international mentoring sessions
• Flexible compensation plan (health insurance, meal vouchers, childcare, transport), telemedicine and life and accident insurance
• 26+ vacation days per year and free specialist services