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About the Role

This role involves playing a crucial part in the development and maintenance of the Managed Kubernetes product, serving both internal IONOS teams and external customers. It requires extensive experience with Kubernetes architecture and a strong focus on operational aspects aligned with CKA principles.

Responsibilities

• Design, develop, and maintain cloud-native applications in Golang (Kubernetes Operators, REST APIs, libraries).
• Design and implement new features to enhance the Managed Kubernetes offering.
• Contribute to the evolution of service architecture and Infrastructure-as-Code procedures.
• Develop and maintain the complete DevOps toolchain (Helm Charts, GitHub Actions, GitOps workflows).
• Create and maintain Kubernetes Operators, Controllers, and Custom Resource Definitions (CRDs).
• Implement monitoring, alerting, and observability solutions for Kubernetes workloads.
• Collaborate with cross-functional teams to improve platform reliability and performance.

Requirements

• Minimum 3 years of practical experience with Kubernetes in production environments.
• Strong knowledge of Golang development with a track record of delivering production-ready code.
• Experience with public cloud providers (AWS, GCP, Azure) or private cloud infrastructures.
• Deep understanding of Kubernetes architecture, API resources, and extension patterns.
• Knowledge of Helm and other Kubernetes package management tools.
• Experience with designing and implementing Kubernetes Operators and Controllers.
• Expertise in container orchestration, networking, and security principles.
• Experience with Observability Stacks (Prometheus, Grafana, Loki, etc.) for monitoring and troubleshooting.
• Advanced knowledge of Linux system administration.
• Good knowledge of CI/CD pipelines and GitOps workflows.
• 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.

Skills

• Golang
• Kubernetes
• Cloud-native application development
• Kubernetes Operators
• REST APIs
• Libraries
• Service architecture
• Infrastructure-as-Code
• DevOps toolchain
• Helm Charts
• GitHub Actions
• GitOps workflows
• Kubernetes Controllers
• Custom Resource Definitions (CRDs)
• Monitoring
• Alerting
• Observability solutions
• AWS
• GCP
• Azure
• Kubernetes architecture
• API resources
• Extension patterns
• Kubernetes package management
• Container orchestration
• Networking
• Security principles
• Prometheus
• Grafana
• Loki
• Linux system administration
• CI/CD pipelines
• Terraform
• Ansible

Location

• Hybrid

Work Type

• Hybrid

Experience Level

• Minimum 3 years of practical experience with Kubernetes in production environments
• Experienced

Education Level

• Kubernetes certifications (CKA, CKAD, CKS)

Benefits

• Hybrid work model
• Flexible working hours through trust-based working time
• Subsidized canteen and various free drinks at some locations
• Modern office spaces with excellent transport links
• Various employee discounts for activities and products
• Employee events (summer and winter parties, workshops)
• Numerous training and development opportunities
• Various health offers (sports and health courses)

About the Company

• IONOS is the leading European digitalization partner for small and medium-sized businesses (SMBs).
• Serves over six million customers.
• Operates with a globally available platform in 18 markets across Europe and North America.
• Acts as a "One-Stop-Shop" for digitalization needs, offering domains, web hosting, website builders, DIY solutions, e-commerce, and online marketing tools.
• Provides cloud solutions for companies transitioning to the cloud.

Equal Opportunity

• IONOS values diversity and welcomes all applications, regardless of gender, nationality, ethnic and social origin, religion, disability, age, sexual orientation and identity, physical characteristics, marital status, or any other irrelevant criterion under applicable law.