K3s Network Engineer

Capgemini Engineering is a world leader in engineering services, dedicated to helping innovative companies unleash their potential through a global team of experts. They are seeking a K3s Network Engineer to design, deploy, and operate Kubernetes-based hosting platforms, ensuring security, scalability, and resilience across various environments. This role is crucial for engineers passionate about cloud-native ecosystems and automation.

Responsibilities:

• Develop and maintain custom Kubernetes controllers, CRDs, and operators to extend platform capabilities
• Integrate Kubernetes with Linux-based infrastructure bootstrapped via PXE, OTA, and other provisioning methods
• Deploy and configure K3s clusters across heterogeneous hardware (bare metal, ARM/x86 nodes, and accelerators)
• Automate cluster provisioning, node registration, and upgrade workflows
• Monitor platform health using Prometheus, Grafana, and Kubernetes Events
• Enforce network policies, RBAC, secrets management, and container security best practices
• Optimize Kubernetes performance on constrained hardware and air-gapped systems
• Troubleshoot container runtimes, DNS resolution, and overlay networking (e.g., Calico, Flannel)

Requirements:

• 5+ years of experience managing Kubernetes platform components and lifecycle operations
• Understanding of multi-node hybrid clusters across x86, ARM, and accelerators
• Proficiency with Helm charts and Argo CD for application and platform deployment
• Strong skills in Go, Bash scripting, YAML/JSON configuration, and REST API development
• Deep understanding of Kubernetes CNI plugins and network policy management
• Experience in the telecom domain and networking is a strong plus