F2Onsite · 12 hours ago
Sr. VMWare/Linux Administrator
Houston, TX
Full-time
Hybrid
Senior LevelF2Onsite is a company seeking a Senior VMWare/Linux Administrator to lead vulnerability remediation activities across VMware ESXi clusters and associated virtualization components. The role involves performing patching, upgrades, and lifecycle management, as well as designing automated solutions for Linux and ESXi environments.
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Responsibilities
Lead vulnerability remediation activities across VMware ESXi clusters, vCenter, and associated virtualization components
Perform ESXi patching, upgrades, and lifecycle management using VMware Lifecycle Manager (vLCM)
Execute remediation of critical vulnerabilities (CVEs) across hypervisors and supporting infrastructure within defined SLAs
Plan and implement rolling upgrades for ESXi hosts in clustered production environments with zero/minimal downtime
Perform RHEL (8.x, 9.x) and SUSE (12.x, 15.x) OS patching, upgrades, and migrations
Design and implement automated patching using Red Hat Ansible Automation Platform (AAP)
Create, test, and maintain Ansible playbooks and workflows for Linux and ESXi remediation activities
Conduct root cause analysis for patching failures, performance degradation, and host instability issues
Perform firmware and BIOS upgrades for server hardware hosting ESXi (including HMC and CECs where applicable)
Manage filesystem, user administration, kernel tuning, and performance troubleshooting in heterogeneous Linux/AIX environments
Coordinate with infrastructure, storage, and network teams to validate compatibility matrices before upgrades
Develop SOPs, remediation runbooks, rollback procedures, and audit documentation for compliance and governance
Qualification
Required
Lead vulnerability remediation activities across VMware ESXi clusters, vCenter, and associated virtualization components
Perform ESXi patching, upgrades, and lifecycle management using VMware Lifecycle Manager (vLCM)
Execute remediation of critical vulnerabilities (CVEs) across hypervisors and supporting infrastructure within defined SLAs
Plan and implement rolling upgrades for ESXi hosts in clustered production environments with zero/minimal downtime
Perform RHEL (8.x, 9.x) and SUSE (12.x, 15.x) OS patching, upgrades, and migrations
Design and implement automated patching using Red Hat Ansible Automation Platform (AAP)
Create, test, and maintain Ansible playbooks and workflows for Linux and ESXi remediation activities
Conduct root cause analysis for patching failures, performance degradation, and host instability issues
Perform firmware and BIOS upgrades for server hardware hosting ESXi (including HMC and CECs where applicable)
Manage filesystem, user administration, kernel tuning, and performance troubleshooting in heterogeneous Linux/AIX environments
Coordinate with infrastructure, storage, and network teams to validate compatibility matrices before upgrades
Develop SOPs, remediation runbooks, rollback procedures, and audit documentation for compliance and governance
Strong hands-on expertise in VMware ESXi patching, upgrades, vCenter administration, and cluster management
Deep knowledge of vulnerability remediation in virtualized environments (Rapid7/Tenable integration preferred)
Advanced RHEL administration (RHEL 8.x & 9.x) including YUM/DNF patching and kernel management
Experience with Red Hat Ansible Automation Platform for automated OS and hypervisor patching
Strong troubleshooting skills across Linux, ESXi, and underlying hardware/firmware layers
Proficiency in scripting (Bash, Shell, or Python) for automation and remediation activities
Company
F2Onsite
F2OnSite specializes in providing cybersecurity, POS, data migration, computer installations, projects and delivery management services.
Founded in 2007
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Ken Bowser
Director - Business Development Project Services
Recent News
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