Role Overview
We are seeking an experienced System Administrator with hands-on expertise in Omnissa Horizon (formerly VMware Horizon) for a short-term contract engagement of 1 2 months. The successful candidate will be responsible for the implementation, configuration, and ongoing management of a virtual desktop infrastructure (VDI) environment built on Omnissa Horizon within a VMware ecosystem.
This is a fully remote role requiring immediate availability. The ideal candidate brings proven, practical experience with Omnissa/VMware Horizon deployments and can hit the ground running with minimal onboarding.
Key Responsibilities
Deploy, configure, and manage Omnissa Horizon environments including Connection Servers, Unified Access Gateways (UAG), and App Volumes
Administer and optimize VMware vSphere/ESXi infrastructure supporting Horizon deployments
Configure and manage desktop pools (persistent and non-persistent/floating), published applications, and Smart Policies
Troubleshoot and resolve VDI performance, connectivity, and user experience issues
Implement and maintain Horizon security configurations including SSL/TLS, two-factor authentication, and network policies
Monitor infrastructure health and performance using Horizon monitoring tools and VMware vROps
Manage user entitlements, group policies, and role-based access control (RBAC) within Horizon
Collaborate with network and security teams on firewall rules, DNS, and load balancer configurations
Produce documentation including architecture diagrams, runbooks, and handover materials
Support end-users and internal IT teams with escalated VDI-related issues
Required Skills & Experience Mandatory
3 6 years of system administration experience with a focus on VDI/virtual desktop environments
Hands-on implementation and management experience with Omnissa Horizon (v7.x, 8.x, or later)
Strong working knowledge of VMware vSphere, ESXi, and vCenter
Experience deploying and configuring Unified Access Gateway (UAG) and Connection Servers
Proficiency with Horizon desktop pools, App Volumes, and Dynamic Environment Manager (DEM)
Solid understanding of Active Directory, Group Policy, and Windows Server environments