Senior Kubernetes Platform Engineer

COCUS

COCUS is all about People! We are proud to deliver skilled services and products developed by great talent, with attitude and ambition to work in innovative IT solutions. We are partnering with worldwide industry leaders and always looking for the brightest minds to have fun working Digital & Cloud Solutions, Data Services, Connectivity and Security. Emotions are part of us, we encourage everyone to be what they truly are in our collaborative, informal, transparent, and open environment where everyone can contribute to the path to achieve our goals as a Team!

What you'll be doing:

• Build and operate production-grade container platforms supporting business-critical workloads

• Work extensively with Kubernetes, automation, and secure infrastructure design across heterogeneous enterprise environments

• Take end-to-end ownership of platform-related topics, ensuring reliability, scalability, and operational excellence

• Collaborate closely with stakeholders and ensure high-quality documentation as part of engineering best practices

• Work within a small, focused team composed of a Technical Project Manager, a Platform Architect, and DevOps Engineers

• Contribute both to daily operations and to architectural decision-making across the platform landscape

What we are looking for:

• Several years of experience in DevOps or infrastructure-related roles, with the ability to design, operate, and evolve Kubernetes-based platforms at scale

• At least 1+ year of hands-on daily production experience with Kubernetes, including cluster lifecycle management, ingress controllers, service meshes, and cert-manager

• Experience writing and maintaining Helm charts or Kustomize configurations

• Strong experience with Terraform and Helm for platform automation and configuration management

• Proven experience designing and operating CI/CD pipelines and GitOps workflows, ideally with ArgoCD

• Proficiency in Go, Python, or Bash for automation workflows and platform tooling

• Strong knowledge of Prometheus, Grafana, and OpenTelemetry, including experience designing and implementing SLI/SLO frameworks for distributed systems

• Familiarity with security standards, platform security best practices, and integrating compliance requirements into platform architectures

• Experience collaborating across cross-functional teams, mentoring colleagues, and contributing to technical growth and infrastructure roadmaps

• Strong communication and presentation skills, with a structured, self-directed, and reliable working style

• Comfortable working in multinational teams

• Very good written and verbal communication skills in English and German

What will be a plus:

• Kubernetes certifications such as CKA, CKAD, or CKS

• Experience with Ansible

• Experience with cloud platforms such as AWS, Azure, or GCP

• Multi-cluster Kubernetes experience

• Hands-on experience with OKD or OpenShift

• Familiarity with Security Context Constraints (SCCs), Cluster Version Operator (CVO), Machine Config Operator (MCO), Operator Lifecycle Manager (OLM), and OKD Routes

• Familiarity with OVN-Kubernetes networking and network policy design

• Knowledge of Longhorn or comparable Kubernetes-native storage systems

• Experience developing or operating Kubernetes Operators

• Familiarity with Operator SDK or Kubebuilder

• Experience writing ADRs, runbooks, and platform design documentation

What we can offer you:

• An informal and friendly corporate culture that rewards innovation and teamwork through global projects in a fast-paced environment, with direct impact on solutions and applications

• Permanent employment contract and a competitive, market-aligned salary based on your experience

• Two pet-friendly offices in Germany

• Company phone for personal use

• Up to 30 days of vacation

• Employee Assistance Program (EAP)

• Company ticket for public transportation and available parking spaces

• Benefit from a company pension scheme

• Bicycle leasing option with a company subsidy

• Hybrid work model with 2 days of home office per week

• Referral program with a bonus – invite a friend to join the team