Senior Linux Systems Administrator & OpenShift Expert

Capgemini; Austin (TX); On-site; USD 79,486,000 - 124,187,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Retirement benefits

Job summary

Tundra Technical Solutions is seeking a seasoned Linux systems administrator to manage RHEL/Rocky Linux environments, OpenShift clusters, and AVI Vantage load balancers across multiple data centers. You will implement Ansible-driven automation, handle VM lifecycles, and coordinate with vulnerability management to patch systems.

You will work in a fast-paced setting supporting FreeIPA/Keycloak for identity services, SSL PKI, and cloud mappings, while participating in on-call rotations to ensure

Qualifications

• 5+ years of enterprise Linux systems administration (RHEL 7/8/9, Rocky Linux).
• Strong Ansible experience for infrastructure automation (playbooks, roles, inventories, vault).
• Experience with container platforms OpenShift or Kubernetes (cluster ops, user mgmt, pod triage).
• Experience with load balancers (AVI Vantage preferred, F5 BIG-IP acceptable).
• Dell PowerEdge hardware management (iDRAC, OpenManage, BIOS/firmware).
• VM lifecycle management (ManageIQ, VMware).
• Identity management systems (FreeIPA, LDAP, Keycloak, AD).
• SSL/TLS certificate management and PKI concepts.
• Git for version control (GitLab preferred).
• Multi-site data center operations.

Responsibilities

• Manage and administer Linux VMs across multi-site data centers.
• Operate OpenShift container platform (user mgmt, workload troubleshooting, cluster health).
• Support AVI Vantage load balancer operations (virtual service config, pool mgmt, SSL binding, health monitors).
• Develop and maintain Ansible playbooks for infrastructure automation.
• Fulfill daily infrastructure requests (VM provisioning, resource augmentation, access provisioning).
• Manage hardware lifecycle activities (iDRAC, decommission, EOSL tracking).
• Deploy and maintain security agents across hosts.
• Manage SSL certificate lifecycle (renewals, installation, expiration tracking).
• Support FreeIPA and Keycloak identity services (user provisioning, group mgmt, auth troubleshooting).
• Coordinate with vulnerability management to patch or mitigate findings.
• Participate in on-call rotation for production incidents.

Skills

Linux administration

Troubleshooting

Automation mindset

Multi-site operations

Tools

Ansible

OpenShift

AVI Vantage

Dell iDRAC

ManageIQ

VMware

Git

Jira

Terraform

Kubernetes

Job description

Tundra Technical Solutions is seeking a seasoned Linux systems administrator to manage RHEL/Rocky Linux environments, OpenShift clusters, and AVI Vantage load balancers across multiple data centers. You will implement Ansible-driven automation, handle VM lifecycles, and coordinate with vulnerability management to patch systems.

You will work in a fast-paced setting supporting FreeIPA/Keycloak for identity services, SSL PKI, and cloud mappings, while participating in on-call rotations to ensure