Staff Mobile Core Signalling Engineer
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Before you apply
LocationBerlin, Germany, Germany, Remote, Berlin
Work moderemote
SeniorityLead
DepartmentInfrastructure
Company size51–200 people
PostedOct 30, 2026 · 1w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
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.
5G Standalone Core experience.
IoT connectivity experience.
eSIM / SIM management platform experience.
Experience with Kubernetes and cloud-native systems.
Good AWS knowledge.
Skills
Diameter
SIGTRAN
SS7
GSM
LTE
HLR
HSS
SMSC
STP
DRA
Kubernetes
AWS
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.