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About the Role

Join the Managed Kubernetes team to develop and maintain the Managed Kubernetes Product for internal teams and external customers. This role requires Kubernetes architecture experience and a 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 for the Managed Kubernetes offering.
• Contribute to service architecture and infrastructure-as-code process development.
• 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 observation solutions for Kubernetes workloads.
• Collaborate with cross-functional teams to improve platform reliability and performance.

Requirements

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

Skills

• Golang development
• Kubernetes architecture
• Kubernetes API resources
• Kubernetes extension patterns
• Container orchestration
• Networking principles
• Security principles
• CI/CD pipelines
• GitOps workflows
• Observability stacks
• Prometheus
• Grafana
• Loki
• Monitoring
• Troubleshooting
• Linux system administration
• Terraform
• Ansible
• Multi-cluster Kubernetes architectures
• Multi-tenant Kubernetes architectures
• Open-source Kubernetes ecosystem contributions

Location

• Hybrid

Work Type

• Hybrid
• Flexible hours

Experience Level

• 3+ years of hands-on experience
• Experienced

Education Level

• Kubernetes certifications (CKA, CKAD, CKS) are a plus

Benefits

• Hybrid working model
• Flexible working hours through trust-based working hours
• Subsidized canteen at some locations
• Various free drinks at some locations
• 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 the Company

• IONOS is the leading European provider of cloud infrastructure, cloud services, and hosting services.
• The company is characterized by open structures, a friendly working culture, flat hierarchies, and strong team spirit.
• IONOS believes work and fun are compatible, offering a supportive environment.
• The company is constantly growing and seeking new colleagues.
• IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB).
• Serves around six million customers across 18 markets in Europe and North America, with worldwide service accessibility.
• Offers a Web Presence & Productivity portfolio as a 'one-stop shop' for digitalization needs, including domains, web hosting, website builders, e-commerce, and online marketing tools.
• Provides Cloud Solutions to enterprises for business evolution.

Equal Opportunity

• Values diversity and welcomes all applications regardless of gender, nationality, ethnic or social origin, religion, disability, age, sexual orientation and identity, physical characteristics, marital status, or any other irrelevant factor subject to applicable law.