Operation and Support Engineer (f/m/d)
Core
Operations & Support Engineer responsible for owning customer tickets, troubleshooting L1/L2 issues across Linux, IMS, SIP, Diameter, Kubernetes, and networking, and running planned upgrades to keep voice networks running.
Role type
Senior IC Operations & Support Engineer (Telecom/IMS)
Builds
Customer voice network stability and uptime
Domain
Telecom, IMS, Cloud Operations
Required skills
Linux administration, Networking (routing, switching, firewalls, NAT, DNS, load balancing), SIP, Diameter, IMS/VoIP core environments, Packet-level troubleshooting (Wireshark, tcpdump), Incident management, Runbook/SOP improvement
Preferred skills
Kubernetes (EKS), Helm, Container networking, Observability tools (Prometheus, Grafana, Alertmanager, Loki), VoLTE/VoWiFi/EPC/5G, Jira Service Management, Confluence
Technologies
Linux, IMS, SIP, Diameter, Kubernetes, AWS (EKS), Wireshark, tcpdump, Jira, Confluence, Prometheus, Grafana, Alertmanager, Loki
Responsibilities
Own customer support tickets from first response to closure; Troubleshoot L1/L2 issues across Linux, IMS, SIP, Diameter, Kubernetes, and networking; Plan and run software upgrades and maintenance windows; Monitor selected customer environments and respond to alerts; Join major incidents and report findings; Improve runbooks, SOPs, and knowledge base articles; Hand over reliably across regions.
Seniority
Mid-to-Senior, hands-on IC
