About the Position

Staff Mobile Core Signalling Engineer

Berlin, Germany

Your Role

As a Staff Mobile Core Signalling Engineer, you will be responsible for developing and maintaining Core Network services. Your work will involve:

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.
Analyzing 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.

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.

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.
Interest in automation and reducing operational toil.

Join our team in Berlin and contribute to building a reliable and scalable Core Network for IoT customers worldwide.