Staff Software Engineer - Core Network

EMnify GmbH; Berlin; Hybrid; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

A leading company in IoT connectivity is seeking a Staff Software Engineer to join their Core Network team in Berlin. You will design Kubernetes applications, leverage AWS technologies, and lead modernization initiatives for their global platform. This role offers flexibility with options for hybrid working arrangements and emphasizes a collaborative culture focused on personal and professional growth.

Leistungen

Hybrid working environment

Leadership coaching and learning opportunities

Social events and team-building activities

Professional relocation services

Qualifikationen

• Deep experience with Java, Spring Boot, Kubernetes, AWS, Kafka.
• Problem-solving skills with strong testing practices.
• Familiarity with telco signaling protocols such as SS7 or SIGTRAN is a plus.

Aufgaben

• Design and build Kubernetes-based telco applications for global IoT connectivity.
• Lead modernization initiatives and help architect distributed network services running in AWS.
• Collaborate across teams to troubleshoot and resolve issues.

Kenntnisse

Java

Spring Boot

Kubernetes

AWS

Kafka

C++

Erlang

Linux

Jobbeschreibung

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Why emnify?

With a predicted 25 billion connected IoT endpoints by 2025, the commercial and technological opportunities presented by the IoT are endless. Not to mention the career paths this exciting space has created. emnify stands out by delivering the next generation of connectivity technology to IoT solution providers worldwide – either directly or via strategic partnerships with CSPs. The most exciting thing about working at emnify is that we are just at the beginning of our journey. We are constantly developing our culture, people and our business approach further. Our guiding principles are driving transformation, customer centricity and empowering people. If you share our vision to unlock the potential of connectivity in a people focused culture that gives you the chance for impact, growth and to be successful together, we would be happy to join us.

Your Role

Are you an engineer at heart, driven by solid engineering practices and real-world impact? Do you have experience in telco or networking and want to modernize how connectivity is built?

At emnify, we are evolving the foundations of our global IoT connectivity platform, and we’re looking for a Staff Software Engineer to help lead that transformation.

You’ll join our Core Network team, a cross-functional group of 9 engineers responsible for the systems that power authentication, signaling, and messaging across our infrastructure. These systems are stable and in production, but we’re actively moving from legacy components to scalable, cloud-native services.

You’ll work with a diverse and evolving tech stack, including:

• Java and Akka for telecommunication application servers
• C++ and Erlang for SS7, SIGTRAN, and DIAMETER signaling routing
• ElastiCache Redis, DynamoDB, and Aurora MySQL as data stores
• An AWS environment, primarily EKS, with connectivity through Direct Connect
• Kafka and gRPC for inter-service communication

This position can be based in emnify’s office in Berlin or Würzburg, or remote within Germany or Poland. While we offer flexibility, the team values in-person collaboration. Most members currently choose to come to the office several days a week.

Take a look at our current tech stack: https://emnify.github.io/tech-radar/

Your Impact

• Design and build Kubernetes-based telco applications for global IoT connectivity
• Apply your expertise in Java, Spring Boot, C++, and Erlang to evolve our signaling and packet processing systems
• Lead modernization initiatives and help architect distributed network services running in AWS
• Prioritize work based on engineering impact, leveraging metrics to guide decisions
• Collaborate across teams to troubleshoot and resolve issues in production and continuously improve our system reliability

Your Skills

• Technical Competency: Deep experience with Java, Spring Boot, Kubernetes, AWS, Kafka, and Linux; hands-on in building distributed systems and event-driven architectures; comfortable with C++ or Erlang
• Domain Proficiency: Solid understanding of IP networks (Layer 3 and 4); familiarity with telco signaling protocols such as SS7 or SIGTRAN is a plus
• Problem-Solving: Strong testing practices, CI/CD mindset, and focus on system reliability and scalability
• Effective Communication: Able to collaborate across engineering teams and communicate clearly about complex systems
• Adaptability: Comfortable navigating legacy systems while driving forward-thinking architectural improvements

Learning culture

It’s all about your growth. emnify puts a lot of effort into setting up different learning opportunities for everyone. We are currently focusing on leadership coaching with our partner Gallup with their strengthsfinder approach. We enable leaders to identify their strengths to continue their learning journey. We offer emerging leaders with our partner Junto to connect with other leaders from similar companies to learn together and grow a network. On top of that our employees benefit from lunch & learn sessions to learn and understand different parts of the business better and leverage the different skills from each other.

Celebrate success together

We empower leaders to spend some quality time with their teams and get together for dinners, workshops, or other fun activities. Building relationships in your team and beyond is key to form and maintain a high-performance culture that ensures a successful and competitive business. We want work to be fun and achieve challenging goals together. Beyond the quarterly events we also have company events like summer or christmas parties where everyone gets together to ensure people focused culture.

Flexible working approach

As a global company, our colleagues work around the world and in different time zones. Flexibility is key to us. emnify has chosen the hybrid approach to focus on growing their existing hubs further. Whereas our GTM organization in the US is completely remote because there is no hub for them yet. We offer professional relocation services, employer of record and remote working policy. We know great talents are spread around the world or have their families in different countries. We are not a remote culture. We believe driving transformation and embracing customer centricity can be done best in our hybrid working environment where we can learn and grow together.

The moment when you sign our contract your onboarding journey starts. Depending on your notice period, you can start with us 14 working days after signing. We are aiming to provide the best onboarding experience for you, your manager and your future team. All the interactions with you are fully automated and designed with Enboarder , our onboarding technology partner, helps us to create a high level of engagement until your start. For people with longer notice periods, expect us to reach out to you 1 month before you start. Your talent advisor will stay in touch with you until then.

We take affirmative action to ensure equal opportunity for your application, regardless to your nationality, ethnic or national origin, skin color, religion, disability, sex, sexual orientation or gender identity. Your qualification and value add are the deciding factors!

In case you are living with disabilities, chronic illness or neurodiversity please inform us, to provide you with the proper assistance in the application process.