Job Title : Linux Systems Administrator
Work Location : Austin, TX Onsite)
Primary Responsibilities:- 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)
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