Kubernetes Infrastructure Engineer

TechDigital Group; Milpitas (CA); On-site; USD 150,000 - 230,000; Full time

Job summary

TechDigital Group seeks a senior Infrastructure Engineer in Milpitas, CA with extensive hands-on Kubernetes, Linux and DevOps experience. You will design, implement and maintain enterprise-grade infrastructure across bare-metal, virtualized and hybrid environments.

You will deploy and manage Rancher-enabled Kubernetes clusters, ensure high availability, perform upgrades and backups, and automate provisioning using Terraform and Ansible.

Qualifications

• Design and implement enterprise infrastructure across bare-metal, virtualized and hybrid environments.
• Deploy, administer and troubleshoot Rancher-managed Kubernetes clusters and containerized apps.
• Manage Kubernetes lifecycle including HA, provisioning, upgrades and etcd backups.
• Administer Linux systems, networking and storage; perform capacity planning and tuning.
• Design and operate Ceph storage and integrate with Kubernetes via CSI.
• Configure Kubernetes networking, ingress, load balancing and storage.
• Automate cluster provisioning and deployment using IaC tools like Terraform and Ansible.
• Develop automation scripts in Python/Bash for installation and monitoring.
• Troubleshoot Linux drivers, kernel modules and OS issues across hardware.
• Evaluate server platforms, BIOS, firmware and hardware health for production use.
• Support GPU-accelerated infrastructure and high-performance networking.
• Establish GitOps, CI/CD, Helm and IaC practices with validation and rollback.
• Implement identity, RBAC, secrets management and security hardening.

Responsibilities

• Design and operate enterprise infrastructure across multiple environments.
• Manage Kubernetes clusters and ensure workload resilience.
• Oversee system administration, capacity planning and performance tuning.
• Implement and maintain Ceph storage integrated with Kubernetes.
• Automate provisioning and deployment with IaC and configuration management.
• Develop scripts for installation, validation and health checks.
• Troubleshoot complex issues spanning Kubernetes, Linux, storage and networks.

Skills

Kubernetes

Linux

Infra

Devops

Ceph storage

Networking

Tools

Rancher

Terraform

Ansible

Job description

Experience

10+ years in infrastructure engineering, including hands‑on Kubernetes administration and architecture, DevOps

Skill set

• Must have - Kubernetes, Linux, Infra, Devops


• Good to have - Ceph storage, networking

Key Responsibilities

• Design and implement enterprise infrastructure across bare‑metal, virtualized and hybrid environments, covering capacity, availability, networking, storage and disaster recovery.


• Deploy, administer and troubleshoot Rancher‑managed RKE/RKE2 Kubernetes clusters, containerized applications and distributed computing platforms.


• Manage Kubernetes lifecycle activities, including control‑plane HA, worker provisioning, upgrades, etcd backup/recovery and workload resilience.


• Administer Linux systems, networking, file systems and storage technologies; perform capacity planning and performance tuning for production workloads.


• Design and operate Ceph storage, including MON, MGR, OSD, MDS and RGW services, and integrate RBD/CephFS with Kubernetes through CSI.


• Configure Kubernetes networking, ingress, load balancing, DNS, certificates, network policies and persistent storage.


• Automate cluster provisioning, installation, configuration management and deployment orchestration using Ansible, Terraform and appropriate provisioning platforms.


• Develop Python, Bash and other automation tools for installation, validation, monitoring, health checks and operational workflows.


• Diagnose Linux device‑driver, kernel‑module and operating‑system issues, ensuring compatibility across hardware, firmware and software dependencies.


• Evaluate and qualify enterprise server platforms, validating BIOS settings, BMC/IPMI firmware, hardware health and system configurations.


• Deploy and support GPU‑accelerated infrastructure, including NVIDIA drivers, CUDA and AI/ML platforms; optimize compute‑intensive workloads.


• Configure and troubleshoot high‑performance networking using NVIDIA/Mellanox technologies, RDMA, RoCE, InfiniBand and high‑speed Ethernet.


• Implement observability, logging and cluster health management using Prometheus, Grafana, ELK, OpenTelemetry or equivalent platforms.


• Establish GitOps, CI/CD, Helm and Infrastructure‑as‑Code practices, including automated validation, release management and rollback procedures.


• Implement enterprise identity integration, RBAC, secrets management, security hardening and container security controls.


• Support secure, mission‑critical and air‑gapped environments, including customer deployments, controlled upgrades and critical incident resolution.


• Lead troubleshooting and root‑cause analysis across applications, Kubernetes, Linux, storage, networking, GPUs and server hardware.


• Coordinate with vendors, customers and cross‑functional teams to resolve integration issues and deliver validated infrastructure.


• Maintain architecture diagrams, configuration baselines, runbooks and recovery procedures; mentor engineers and lead operational handover.

Preferred qualifications

• - CKAD, CKA, CKS or relevant Linux/cloud certifications.