We are seeking a Secure Platform Administrator to support the operation, security, and lifecycle management of our secure landing zone infrastructure, built on VMware vSphere, VMware Aria, Linux, Windows, Omnissa Horizon (VDI), and CyberArk.
This role focuses on hands-on administration, security implementation, monitoring, and automation under the guidance of senior engineers and architects. The Administrator will collaborate with InfoSec, IT, HPC, and compliance teams to maintain secure, reliable, and compliant infrastructure services.
Major Accountabilities
vSphere & Aria Secure Landing Zone
Administer and monitor vSphere clusters and Aria Operations/Automation platforms.
Apply security hardening and assist with workload segmentation.
Support host patching, firmware updates, and lifecycle management.
Perform capacity monitoring and assist with compliance reporting.
CyberArk Privileged Access Management
Administer CyberArk Vaults, PVWA, CPM, and PSM components.
Onboard privileged accounts, rotate credentials, and maintain vault health.
Enforce session policies and support integrations with identity/security systems.
Assist with upgrades and ensure operational continuity.
Omnissa Horizon (VDI)
Maintain VDI infrastructure components such as Connection Servers, Unified Access Gateways, and Load Balancers.
Manage user pools, golden image updates, and entitlement assignments.
Monitor VDI performance and user experience metrics.
Assist with patching and pool lifecycle management.
Windows & Linux Administration
Manage and support Windows and Linux server environments across secure platforms.
Apply operating system hardening, patch management, and vulnerability remediation.
Configure security baselines, group policies, and access controls.
Monitor system health, logs, and performance metrics.
Security & Compliance Management
Implement and monitor NIST 800-53 aligned security configurations.
Maintain compliance evidence, documentation, and assist with audits.
Support remediation of compliance drift through automation or manual fixes.
Collaborate with compliance teams to uphold export boundary requirements.
Automation & DevSecOps Support
Use Infrastructure-as-Code and scripting tools (Terraform, Ansible, PowerShell, Python) to reduce manual effort.
Support automation of provisioning, patching, and reporting tasks.
Contribute to CI/CD pipeline integrations for platform security and compliance.
Collaboration & Operations
Work with IT operations on maintenance, incident response, and upgrades.
Partner with InfoSec and GRC teams for policy alignment and control enforcement.
Assist HPC and scientific teams with secure workload enablement.
Support enterprise architects in modernization initiatives.
Person Requirements
Competencies
Strong technical administration of virtualized infrastructure (VMware, Windows, Linux).
Security-first mindset with understanding of privileged access management.
Ability to follow compliance frameworks and prepare documentation/evidence.
Practical automation skills for efficiency and consistency.
Effective communicator across technical and compliance functions
Proactive in monitoring, troubleshooting, and continuous improvement.
Qualifications
Bachelor's in Computer Science, Cybersecurity, IT, or related discipline (or equivalent experience).
Preferred Certifications:
VMware VCP (vSphere / Horizon)
CyberArk Trustee or Defender
Linux/Windows Admin certifications
ITIL v4 Foundation
Experience
3-6 years of experience in IT infrastructure, system administration, or security operations.
Hands-on experience with:
VMware vSphere / Aria
Windows & Linux server administration
CyberArk (account onboarding, policy enforcement)
VDI technologies (Omnissa Horizon / VMware Horizon)
Familiarity with automation tools (Terraform, Ansible, PowerShell, Python).
* Exposure to compliance frameworks such as NIST 800-53, ISO 27001, or similar (experience supporting audits a plus).
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