IONOS SE

Staff Software Engineer (f/m/d) Managed Kubernetes / 1647

Berlin, Germany

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hirly's read of this role

Role family: Engineering
Seniority: Mid level
Country: DE
Work mode: On-site / unstated
First seen by hirly: 19 Oct 2026

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the posting

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
Willingness to undergo extended security vetting (SÜ2)

### 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.

Original posting on IONOS SE's site ↗

Listed on hirly, a job board. hirly is not the employer: IONOS SE is hiring for this role.

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