Job Title: System Administrator Omnissa Horizon
Duration
1 2 Months | Level
Mid-Level | Work Type
Remote | Start Date
Immediate |
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
- Familiarity with networking fundamentals: DNS, DHCP, VLANs, load balancing, firewall rules
- Experience with SSL certificates management and Horizon security hardening
Nice to Have- VMware Certified Professional Desktop and Mobility (VCP-DTM) or equivalent certification
- Experience with VMware NSX or NSX-T networking
- Familiarity with cloud-hosted Horizon deployments (Azure VMware Solution, AWS SDDC)
- Exposure to Workspace ONE / Unified Endpoint Management (UEM)
- Scripting skills (PowerShell, Python) for automation of Horizon management tasks
- Experience with monitoring tools such as VMware vROps, Lakeside SysTrack, or ControlUp
Qualifications- Bachelor's degree in Computer Science, Information Technology, or a related field or equivalent practical experience
- VMware or Omnissa certifications strongly preferred (VCP-DTM, VCAP-DTM, or equivalent)
- Strong communication skills with the ability to work independently in a remote setting
Availability to start immediately upon contract execution