Engineering Manager - Core Network

Your Role

As an Engineering Manager, you will lead a cross-functional team of 10 engineers (direct and indirect reports) responsible for emnify’s mission-critical core network services. These services ensure the connectivity, scalability, and reliability of our global infrastructure, enabling customer devices to connect across 500+ mobile networks worldwide.

This team designs, builds, and operates core components such as HLR/HSS, AuC, Diameter routers, SIGTRAN, SMSC, and other services that power authentication, signaling, and messaging for emnify SIMs globally.

We’re open to candidates from one of two technical backgrounds:

• Java engineers with strong Akka experience (ideally also Spring Boot and Kafka)

• Erlang/C++ engineers with production experience in telecom signaling environments

You will play a key role in guiding architecture and engineering practices, helping the team evolve from legacy systems to highly scalable, event-driven, cloud-native solutions, while fostering a high-performance and collaborative culture.

Location: Germany or Poland.
If based in Berlin, we expect you to join us in the office 3 days per week.
If based elsewhere, we ask for monthly travel to our Berlin office.

Your Impact

• Team Leadership & Engineering Culture: Foster a strong, quality-driven engineering culture rooted in modern practices (e.g. CI/CD, testing, clean code, system ownership). Guide team growth through mentorship and inclusive leadership.
• System Architecture & Design: Lead architecture and design discussions. Drive the evolution of our core network from a distributed monolith to scalable, resilient, event-driven services.
• Strategic Technical Initiatives: Enable large-scale transformations, including core network modernization and 5G readiness, through pragmatic leadership and collaborative planning.
• Cross-functional Collaboration: Work closely with product managers, telco engineers, and platform teams to align architecture with product and business goals.
• Operational Excellence: Ensure system reliability through robust testing, observability, and gradual rollouts. Balance roadmap execution with incident response and continuous improvement.

Your Skills

• Engineering Leadership: Proven experience managing and mentoring engineers, with the ability to lead through influence, foster autonomy, and drive alignment across teams.
• System Architecture & Design: Strong track record designing and evolving distributed, event-driven systems that prioritize high availability, scalability, and observability.
• Technical Competency: Hands-on experience in one of the following stacks:
  • Java with Akka (Spring Boot and Kafka are a plus)
  • Erlang and C++ (Kafka is a plus)
• Telecom & Signaling Knowledge: Direct experience with mobile core network protocols and signaling (e.g. SIGTRAN, Diameter, HLR/HSS, AuC, SMSC), ideally in production environments.
• Cloud Infrastructure & Operations: Experience building and operating services in cloud-native environments (e.g. Kubernetes, AWS, Terraform), including monitoring and alerting.