SYSTEM ADMINISTRATOR LEVEL 3 - VMWARE/LINUX INFRASTRUCTURE SPECIALIST LEAD ENTERPRISE IT INFRASTRUCTURE FOR MISSION-CRITICAL DEFENSE SYSTEMS We're seeking an experienced System Administrator Level 3 with deep expertise in VMware virtualization and Linux environments to manage and optimize complex IT infrastructure supporting defense operations. This role requires 15 years of progressive systems administration experience, combining advanced … technologies in a high-stakes environment. WHAT YOU'LL DO Advanced Infrastructure Management • Analyze and resolve complex problems associated with server hardware, applications, and software integration • Configure and manage VMware vSphere environments including ESXi hosts, vCenter, and distributed virtual switches • Administer enterprise Linux distributions (RHEL, CentOS, Ubuntu) and UNIX systems at scale • Implement and maintain Windows Server environments … Certification: DoD 8570 IAT Level II compliance (Security+ CE, CCNA-Security, CySA+, GICSP, GSEC, or equivalent) • Clearance: Ability to obtain and maintain required security clearance Core Technical Expertise • Advanced VMware vSphere administration including vCenter, ESXi, vMotion, and HA/DRS clusters • Expert-level Linux system administration across multiple distributions • Proficiency in Windows Server environments (2016/2019/ More ❯
searching, monitoring, and analyzing big data Experience with the sustainment and support of large Linux clusters including day-to-day operations, monitoring and problem resolution Experience configuring and sustaining VMwareESXi/Virtualization environments Experience with IaC (Infrastructure as Code) principles and automation tools such as SaltStack and Ansible Experience with corporate STE/STN security compliance policies More ❯
Systems Engineer II: Location: Columbia, MD TS/SCI WITH FULL SCOPE POLYGRAPH REQ Description: Linux (RedHat, CentOS) operating systems, VMWare, ESXi, Active Directory, Group policy, DHCP, shared storage and Databases, DNS, McAfee EPO Servers, CENTRIFY, LDAP Analyze and resolve complex problems associated with server hardware, applications, and software integration. Configure and manage UNIX and Linux operating systems More ❯
Basingstoke, England, United Kingdom Hybrid / WFH Options
Fujitsu
following the appropriate guidelines, experience in Secure by Design (SbD) advantageous. Experience creating and executing PowerShell scripts and Infrastructure as Code (IaC). Demonstrable experience of the migration from ESXi to Hyper-V is advantageous. Experience of Terraform and/or Ansible and advanced knowledge of Microsoft Windows Server, Active Directory, Group Policy including Certification Authority role service within More ❯
southampton, south east england, united kingdom Hybrid / WFH Options
Fujitsu
following the appropriate guidelines, experience in Secure by Design (SbD) advantageous. Experience creating and executing PowerShell scripts and Infrastructure as Code (IaC). Demonstrable experience of the migration from ESXi to Hyper-V is advantageous. Experience of Terraform and/or Ansible and advanced knowledge of Microsoft Windows Server, Active Directory, Group Policy including Certification Authority role service within More ❯
systems installations, infrastructure and power requirements 2. Experience providing technical training for both foreign and domestic audiences 3. Technical Certifications: MCSE and/or CCIE 4. Working knowledge of VMWare and ESXi. 5. Previous experience with storage devices including NetApp. 6. Working knowledge CSFC technologies and methodologies 7. Current experience in the Sponsor's classified and unclassified distributed work More ❯
Citizenship (required due to government security clearance requirements) Desired Skills: Red Hat Satellite configuration and RHEL expertise Network administration experience (LAN/WAN, Cisco) Familiarity with virtualization platforms (e.g., VMWareESXi, vCenter) Cybersecurity concepts and network security fundamentals Scripting capabilities using Bash, Python, PowerShell, etc. Strong troubleshooting skills across hardware/software and infrastructure Experience with firmware upgrades More ❯
and OSX. 7. Demonstrated experience with Microsoft Windows ver.; 7, 8, 10, 2008R2, 2012, 2012R2, or 2016. 8. Demonstrated experience with cloud computing technology and hypervisors such as HyperV, VMWareESX, or Virtual Box. 9. Demonstrated experience with transitioning security domains and use of cross domain appliances. 10. Demonstrated experience with network management systems, network storage, backup systems, and More ❯
intrusion prevention systems. Familiarity with Cyber Security Tools like Splunk, Vectra Networks, Security Onion Deep understanding of IPSEC and 802.1X Familiarity with Virtualization platforms involving Network Function Virtualization and VMwareESXi or Microsoft Hyper-V Should be well-versed with all aspects of project management such as team building, staff training and scheduling. Clearance Information: Some positions will More ❯
Gloucester, Gloucestershire, South West, United Kingdom
Forward Role
Essential: Demonstrable experience in IT infrastructure support within a secure, regulated environment , ideally in Defence, National Security, or Government sectors Strong hands-on knowledge in several of the following: VMware technologies (ESXi, vCenter, NSX, VCF) Windows Server administration (AD, DNS, DHCP, PKI) Linux system administration Backup solutions (e.g. Veeam) Containerisation tools (e.g. Docker, Kubernetes) Monitoring tools such as More ❯
Leatherhead, Surrey, England, United Kingdom Hybrid / WFH Options
Recruitvirt Ltd
Required Skills & ExperienceTechnical Expertise VMware Cloud Foundation (VCF): Strong experience deploying, supporting, and troubleshooting VCF environments, including key components of vCenter, ESXi, vSAN. VMware NSX: Solid understanding of NSX networking and security capabilities including DFW, routing, and NAT. Veeam Backup & Replication: Proven experience in backup configuration, restore testing, replication, and DR planning. Solid understanding of vSphere environments … Aria Operations and LogicMonitor, automation/scripting (PowerCLI, Bash), and patch management. About the Role I am looking for a Senior Managed Services Engineer with deep technical expertise in VMware Cloud Foundation (VCF), VMware NSX, and Veeam Backup & Replication to join our dynamic Managed Services team. You’ll be responsible for delivering exceptional support and service to our … You’ll be part of a growing team dedicated to providing proactive support and continuous improvement across our managed service offerings. Key Responsibilities Deliver operational support and administration of VMware Cloud Foundation (VCF) stacks, ensuring availability, performance, and security. Configure, manage, and troubleshoot VMware NSX for micro-segmentation, edge services, and virtual networking. Operate and enhance Veeam Backup More ❯
Day Key Responsibilities: - Lead automation and scripting efforts across physical and virtual environments using tools such as Ansible, Terraform, or Puppet - Administer Windows Server infrastructure, including Active Directory and VMware/ESXi environments - Create and manage virtual machines, snapshots, and maintain asset inventory - Implement and maintain STIG compliance and ACAS vulnerability remediation - Troubleshoot and resolve system and network … needed - Coordinate with government and contractor teams to support technical project execution Core Requirements: - 5+ years of experience with Windows systems administration - 3+ years of experience with Windows virtualization (VMware/ESXi) - 2+ years of experience in scripting and automation (Ansible, Terraform, or Puppet) - Experience leading small to mid-sized technical projects - Working knowledge of networking fundamentals - Active More ❯
thrives in hybrid, virtualised environments. Think Nutanix (AHV), distributed storage, and automation across compute, storage, and networking layers. The Role: Hands-on ownership of the Nutanix stack (migrated from VMware) Troubleshoot and optimise infrastructure across virtualisation and storage Automate everything – Terraform, PowerShell, Python, REST APIs (Nutanix CLI/API experience a big plus) Work closely with architects and senior … new tools/vendors – innovation encouraged You'll need: Strong experience in infrastructure engineering (on-prem/hybrid) Hands-on with Nutanix (or similar HCI) and virtualisation platforms (AHV, VMwareESXi, Hyper-V) Solid understanding of storage, DR, clustering, etc. Confident scripting and automating – PowerShell, Python, APIs Comfortable owning technical solutions end-to-end Why join? Highly autonomous More ❯
Reigate, Surrey, South East, United Kingdom Hybrid / WFH Options
La Fosse
environments, storage, and certificates. Support IT audits and maintain up-to-date documentation. Collaborate closely with team members to resolve issues and deliver projects. Essential Skills & Experience Experience with VMware, ESX Hosts, VX Rail, and virtual server environments. Strong knowledge of Active Directory and DNS systems. Familiarity with Veeam backup software. Understanding of Azure server and application administration. Experience More ❯
Aldermaston, Reading, Berkshire, England, United Kingdom
FryerMiles Recruitment
Assisting other team members including communicating company strategies, team goals, project deadlines, identifying training needs and skill management. Experience/Qualification: Microsoft 365 \ Teams \ Exchange \ SharePoint, Intune and AutoPilot. VMWareESX, vCenter and/or Hyper-V. Backup, Firewalls and Email Security LAN, WAN, VLAN, VPN and Wireless Certifications or a technical qualification in IT. Excellent knowledge of Sophos More ❯
ll need for this role Strong working knowledge of Nutanix Hyperconverged Infrastructure (HCI), requiring a mix of infrastructure, virtualisation, and cloud-native skills Firm grasp of hypervisors: AHV (preferred), VMwareESXi, or Hyper-V in Nutanix clusters. Experience with VM provisioning, live migration, cloning, snapshots, and DR within HCI environments. Knowledge of distributed storage fabric and how Nutanix More ❯
experience • An active TS/SCI with Full Scope Poly • Proficiency across multiple operating systems: Windows, Linux, and macOS • Hands-on experience with various hypervisors, such as Hyper-V, ESXi, and VirtualBox • Familiarity with Cisco operating systems including IOS and Nexus OS • Strong background in Windows system management tools, including Active Directory, SCOM, and VMM • Demonstrated ability to perform More ❯
tracks hardware and software configuration, migration, testing, and deployment solutions rovides user support for an enterprise-level environment hosting hundreds of thousands virtual desktops published via Citrix XenDesktop with VMware as hypervisor Requirements B.A. + 14 yrs experience Strong analytical and problem-solving skills, with the ability to troubleshoot complex storage issues Able to build a strong background in … Citrix, XenDesktop, Desktop Delivery Controllers (DDCs), VMWARE, ESXi, and Windows Operating Systems Preferred Experience working in large-scale infrastructure More ❯
duties will include: Cloud Platforms : Extensive experience with Microsoft Azure services, including compute, storage, networking, data, and security components. Exposure to other cloud environment desirable. Virtualisation : Advanced knowledge of VMware vSphere, ESXi, vCenter, and associated management tools. Operating Systems : Deep expertise in Windows Server administration across multiple versions and deployment scenarios. Exposure to Linux system administration. Infrastructure as More ❯
network infrastructure within a safety-critical environment. Responsibilities include: Support, implement and manage OT infrastructure: Cisco Nexus/Access switches, Cisco/Juniper firewalls, Dell servers. Deploy and maintain VMwareESXi and StorMagic SvSAN Lead setup of racks, cabling, power, and dual ISP circuits. Administer VLANs, subnets, firewall policies, and Purdue-model security zoning. Manage AD, DNS, DHCP … audits, and compliance records. Drive improvements through fault review, corrective action and documentation. Candidate - Essential: 5+ years experience in network engineering Experience with Cisco Networking, Cisco/Juniper Firewalls, VMware and Dell Server environments Degree in network engineering, Information Technology, or a similar/related field Candidate - Desirable: OT/industrial control experience within a safety-critical environment Transport More ❯
Deterrence through continual improvement and innovation. Duties and Responsibilities: Maintain storage connected to a Storage Area Network (SAN) Possess knowledge of block-level protocols, specifically iSCSI Maintain Hypervisors using VMware Conduct cross-department training and end-user training Perform root cause analysis and resolve faults and errors in applications Develop recommendations for enhancing software support services Ensure adherence to … and document compliance Preferred Education, Experience, & Skills: Experience with Virtual Desktop Infrastructure Scripting to automate tasks using PowerShell and/or AWS Console Familiarity with Virtual Desktops and virtualization (VMwareESXi preferred) Experience in large-scale deployments as an administrator Knowledge of cloud migration and AWS Cloud Platform (IaaS preferred) Load balancing/failover technologies General knowledge of More ❯
switches, firewalls, etc.) and networking protocols and concepts such as OSPF, RADIUS, Access Control Lists and port security Preferred: • Two to four years' experience with virtualization technologies such as; VMware, ESXi, server virtualization, network virtualization, storage virtualization, virtual router, vSwitches and management of virtual applications • Facilitating discussions with cross-sectional teams to compile the compliance documents • Direct experience More ❯
switches, firewalls, etc.) and networking protocols and concepts such as OSPF, RADIUS, Access Control Lists and port security Preferred: • Two to four years' experience with virtualization technologies such as; VMware, ESXi, server virtualization, network virtualization, storage virtualization, virtual router, vSwitches and management of virtual applications • Facilitating discussions with cross-sectional teams to compile the compliance documents • Direct experience More ❯
Description Experienced Windows Admin with exposure to VMwareESXi Experience with NAS setups Exposure to Linux Exposure to Cisco switches Experience with Agency security requirements and implementation of STE mechanisms Requirements TS/SCI clearance with a polygraph Bachelor's degree in Technology and 15+ years of experience with systems administration, or 20+ years of experience with systems More ❯
leadership. Preferred Qualifications: 5+ additional years of related work experience or equivalent education. Active certifications in Cloud, Information Security, or related fields. Experience with virtualization platforms such as AHV, VMwareESXi, or Hyper-V. Familiarity with VDI infrastructure, system monitoring, and secure infrastructure practices. Experience using Confluence for documentation and Jira for task tracking. Education & Experience: Typically acquired More ❯