What you bring

Strong hands-on Linux administration and troubleshooting experience.
Strong networking knowledge: routing, switching, firewalls, NAT, DNS, load balancing, and packet-level troubleshooting.
Experience with Wireshark, tcpdump, logs, traces, and production monitoring tools.
Strong practical knowledge of SIP and Diameter, including independent interpretation of call flows and signaling traces.
Hands-on IMS experience, ideally with components such as P-CSCF, I-CSCF, S-CSCF, DRA, BGCF, B2BUA, HSS, PCRF/PCF, or MMTEL.
Experience leading complex production incidents while remaining technically involved in the investigation.
Strong customer-facing communication skills and the ability to remain clear and calm under pressure.
Experience writing incident updates, RCAs, and technical documentation.
Ability to work independently across timezones, take ownership, and close the loop.
Fluent English, written and spoken.

Strongly preferred

Kubernetes and AWS operational experience.
Prometheus, Grafana, Alertmanager, Loki, or similar observability tooling.
Experience with VoLTE, VoWiFi, EPC, 5G, or mobile-core environments.
Familiarity with Helm, Longhorn, Multus, container networking, or cloud-native telecom platforms.
Experience with Jira Service Management, Confluence, and structured incident/problem management.