Specialist Software Engineer (f/m/d) Managed Kubernetes

ionos2· IT Software Development
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📍 Revaler Straße 28-31, 10245 Berlin

About this role

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.

We are seeking an experienced Specialist Software Developer to join our Managed Kubernetes team. You'll play a crucial role in developing and maintaining our Managed Kubernetes Product that serves both internal IONOS teams and external customers. This position requires experience with Kubernetes architecture and a strong focus on operational aspects aligned with the principles of CKA (Certified Kubernetes Administrator).

Tasks

  • Design, development, and maintenance of cloud-native applications in Golang (Kubernetes Operators, REST APIs, libraries).
  • Designing and implementing new features to improve our Managed Kubernetes offering.
  • Contribute to the further development of our service architecture and infrastructure-as-code processes.
  • Development and maintenance of the complete DevOps toolchain (Helm Charts, GitHub Actions, GitOps workflows).
  • Creation and maintenance of Kubernetes operators, controllers and custom resource definitions (CRDs).
  • Implement monitoring, alerting, and observation solutions for Kubernetes workloads; collaborate with cross-functional teams to improve platform reliability and performance.

Qualifications

  • 3+ years of hands-on experience working with Kubernetes in production environments
  • Proficiency in Golang development with a track record of delivering production-grade code
  • Understanding of Kubernetes architecture, API resources, and extension patterns
  • Knowledge of container orchestration, networking, and security principles
  • Knowledge of CI/CD pipelines and GitOps workflows
  • Experience with observability stacks (Prometheus, Grafana, Loki, etc.) for monitoring and troubleshooting
  • Linux system administration skills

Nice-to-have:

  • Kubernetes certifications (CKA, CKAD, CKS).
  • Experience with infrastructure automation tools (Terraform, Ansible).
  • Experience with multi-cluster and multi-tenant Kubernetes architectures.
  • Contributions to open-source Kubernetes ecosystem projects.

Note: At the end of the application process, candidates must undergo a security check. Your consent will be requested in good time during the process.

Benefits

  • Hybrid working model.
  • Flexible working hours through trust-based working hours.
  • At some locations a subsidized canteen and various free drinks.
  • Modern office space with very good transport connections.
  • Various employee discounts for activities and products.
  • Employee events such as summer and winter parties, as well as workshops.
  • Numerous training and development opportunities.
  • Various health offers, such as sports and health courses.

About IONOS

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve. 

We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.

 

Frequently Asked Questions

Is the salary disclosed for the Specialist Software Engineer (f/m/d) Managed Kubernetes position at ionos2?
The salary for this Specialist Software Engineer (f/m/d) Managed Kubernetes role at ionos2 is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Specialist Software Engineer (f/m/d) Managed Kubernetes position at ionos2 located?
This Specialist Software Engineer (f/m/d) Managed Kubernetes role at ionos2 is based in Revaler Straße 28-31, 10245 Berlin. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Specialist Software Engineer (f/m/d) Managed Kubernetes at ionos2 belong to?
This Specialist Software Engineer (f/m/d) Managed Kubernetes position is part of the IT Software Development department at ionos2. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Specialist Software Engineer (f/m/d) Managed Kubernetes position at ionos2?
Click the "Apply Now" button on this page. You will be redirected to ionos2's official application portal hosted on greenhouse where you can submit your application directly.
When was the Specialist Software Engineer (f/m/d) Managed Kubernetes job at ionos2 posted?
This Specialist Software Engineer (f/m/d) Managed Kubernetes position at ionos2 was posted on Aug 22, 2025. Apply as soon as possible — early applications are often reviewed first.
Specialist Software Engineer (f/m/d) Managed Kubernetes
ionos2
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