Staff Mobile Core Signalling Engineer

Location: Berlin

Department: Infrastructure

Your Role
-Developing and maintaining Core Network services.
-Working with Diameter, SIGTRAN, SS7 and related signalling technologies.
-Supporting the onboarding of new connectivity partners and roaming -integrations.
-Troubleshooting complex signalling and connectivity issues.
-Designing resilient, highly available services.
-Improving load balancing, rate limiting and traffic management capabilities.
-Driving cloud-native migration initiatives.
-Contributing to multi-region and disaster recovery designs.
-Analysing signalling incidents and performance bottlenecks.
-Developing overload protection and rate-limiting strategies.
-Improving observability, monitoring and operational readiness of network services.
-Reducing operational toil through automation.
Your Impact
-Reliable connectivity for IoT customers worldwide: Your work keeps signalling and roaming services available, fast and resilient, so customers' devices stay connected across networks.
-A scalable, cloud-native Core Network: You help move emnify's platform toward multi-region, disaster-resilient and automated operations.
-Faster incident resolution: Your analysis of signalling incidents and bottlenecks shortens recovery times and prevents repeat failures.
-Faster partner onboarding: Your expertise speeds up the integration of new connectivity partners and roaming relationships.
-Less operational toil: Automation and better observability free the team to focus on engineering improvements.
What We Expect
-Strong background in mobile core networks.
-Telecom protocol testing and debugging.
-Experience with telecom vendors and roaming partners.
-Deep understanding of Diameter, SIGTRAN, SS7, GSM/LTE core concepts and roaming architectures.
-Experience with HLR, HSS, SMSC, STP, DRA and related components.
-Experience developing and maintaining network services.
-Ability to troubleshoot complex signalling and connectivity issues.
-Experience with load balancing, rate limiting and overload protection.
-Experience with monitoring, observability and incident analysis.
I-nterest in automation and reducing operational toil.
Nice to have
-5G Standalone Core experience.
-IoT connectivity experience.
-eSIM / SIM management platform experience.
-Experience with Kubernetes and cloud-native systems.
-Good AWS knowledge.