Linux Systems Administrator

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

Manage and administer Linux (RHEL/Rocky) virtual machines across multi-site data center environments

Operate and maintain OpenShift container platform (user management, workload troubleshooting, cluster health)

Support AVI Vantage load balancer operations (virtual service configuration, pool management, SSL binding, health monitors)

Develop and maintain Ansible playbooks for infrastructure automation (user management, security agent deployment, OS patching, SSH hardening)

Fulfill daily infrastructure requests (VM provisioning, resource augmentation, access provisioning, troubleshooting)

Manage hardware lifecycle activities (Dell iDRAC, decommission coordination, EOSL tracking)

Deploy and maintain security agents across all hosts

Manage SSL certificate lifecycle (renewals, installation, expiration tracking)

Support FreeIPA and Keycloak identity services (user provisioning, group management, authentication troubleshooting)

Coordinate with vulnerability management to patch or mitigate findings on data center hosts

Participate in on-call rotation for production infrastructure incidents

Required Qualifications:

5+ years of experience in enterprise Linux systems administration (RHEL 7/8/9, Rocky Linux)

Strong working knowledge of Ansible for infrastructure automation (playbook development, roles, inventories, vault)

Experience with container platforms - OpenShift or Kubernetes (cluster operations, user management, pod troubleshooting)

Experience with application delivery controllers / load balancers (AVI Vantage preferred, F5 BIG-IP acceptable)

Hands-on experience with Dell PowerEdge server hardware management (iDRAC, OpenManage, BIOS/firmware updates)

Familiarity with virtualization platforms and VM lifecycle management (ManageIQ, VMware, or similar)

Experience with identity management systems (FreeIPA, LDAP, Keycloak, or Active Directory)

Understanding of SSL/TLS certificate management and PKI concepts

Proficiency with Git for version control - comfortable with branching, merge requests, and collaborative workflows (GitLab preferred)

Experience working in multi-site data center environments

Foundational knowledge of cloud platforms (AWS or GCP) - understanding of core services (compute, networking, storage, IAM) and how on-prem infrastructure maps to cloud equivalents

Strong troubleshooting skills across network, OS, and application layers

Ability to work independently, manage a queue of requests, and prioritize effectively

Preferred Qualifications:

Experience with AVI Vantage specifically (virtual services, pools, health monitors)

Experience with Splunk Forwarder deployment and log pipeline configuration

Exposure to vulnerability management workflows

Experience with Jira for work tracking and request management

Familiarity with hardware lifecycle planning (EOSL tracking, refresh coordination, capacity planning)

Python scripting for operational automation and reporting

Understanding of network fundamentals (VLANs, routing, firewall rules, DNS)

Experience supporting Cisco UCS or Dell EMC Unity storage platforms

Hands-on experience migrating workloads from on-prem to AWS or GCP (lift-and-shift or re-platform)

Familiarity with Infrastructure as Code for cloud (Terraform, CloudFormation, or Deployment Manager)

Experience with cloud-native container orchestration (EKS, GKE) in addition to on-prem OpenShift

EnableSkinIGERscertifications (Associate level or higher)

The pay range that the employer in good faith reasonably expects to pay for this position is $27.74/hour - $43.34/hour. Our benefits include medical, dental, vision and retirement benefits.

Tundra Technical Solutions is among North America's leading providers of Staffing and Consulting Services. Our success and our clients' success are built on a foundation of service excellence. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law, including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Unincorporated LA County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: client provided property, including hardware (both of which may include data) entrusted to you from theft, loss or damage; return all portable client computer hardware in your possession (including the data contained therein) upon completion of the assignment, and; maintain the confidentiality of client proprietary, confidential, or non-public information. In addition, job duties require access to secure and protected client information technology systems and related data security obligations.