Full-Time Senior Systems Administrator/Manager

We are seeking a highly skilled and experienced Systems Administrator to manage and optimize our hybrid IT environment.

This role requires a hands-on technical expert with knowledge in Citrix XenApp, Windows Server administration, virtualization technologies, and automation scripting.

The ideal candidate will provide technical leadership, tier III support, and contribute to a high-performing IT infrastructure that enables business operations across a global workforce.

Key Responsibilities

• Serve as the technical subject matter expert for Citrix environments (XenApp, XenDesktop, Metaframe, EdgeSight, StoreFront, Web Interface, Receiver/Client Plugins), managing operations, troubleshooting, and performance optimization across enterprise deployments.
• Manage Citrix policies, SSL VPN configurations, and multi-factor authentication (2FA) solutions.
• Monitor and resolve complex issues in the Citrix environment and related application infrastructure; serve as the escalation point for troubleshooting across various IT components.
• Administer core Microsoft infrastructure services (Active Directory, Group Policy, DNS, DHCP, File/Print) and Windows Server platforms (2012 through 2022).
• Deploy, configure, and maintain physical and virtual servers in VMware vSphere environments, including high availability, disaster recovery, and storage management (SAN, vSAN, Nimble).
• Support cloud infrastructure initiatives in AWS and Azure, including deployment, monitoring, and optimization of application stacks, networking, and storage.
• Automate system administration and operational tasks using PowerShell and Python, including integration with REST APIs.
• Provide Tier III technical support for end-user issues and mentor Tier I/II support staff; participate in an on-call rotation for critical incident response.
• Ensure IT operations run smoothly across local and global teams, supporting workstations, conference rooms, and IT assets in collaboration with Workplace Services.
• Manage IT ticket queues and document incident resolutions, standard operating procedures, and system configurations.
• Support IT onboarding by provisioning user accounts, assigning permissions, and setting up new hardware/software for incoming employees.
• Lead or consult on IT projects involving upgrades, new technology rollouts, and business system enhancements.
• Perform capacity planning, performance tuning, and continuous infrastructure optimization.
• Maintain compliance with software patching schedules, backup policies, and security standards.
• Coordinate with external vendors and service providers to support infrastructure and resolve issues.

Requirements

• 5+ years of experience in system administration.
• Advanced knowledge of Citrix technologies, Windows Server environments, Active Directory, and GPO management.
• Strong experience in VMware vSphere/ESXi environments and enterprise storage systems.
• Proficiency in PowerShell and Python for automation; experience integrating with REST APIs.
• Solid understanding of cloud infrastructure (AWS and Azure), virtualization, and networking fundamentals.
• Demonstrated ability to manage and optimize complex IT environments, both on-premise and cloud-based.
• Experience in mentoring IT support teams and managing escalated tickets.
• Excellent communication skills and a collaborative mindset to support cross-functional initiatives.
• Proven ability to document procedures, configurations, and workflows clearly.
• Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent experience).
• Relevant certifications (e.g., Citrix Certified Associate/Professional, Microsoft, VMware, AWS/Azure) are a plus.

Additional Requirements

• IT Education and technical certifications preferred
• Strong experience in Azure and Microsoft 365
• Proven technical writing and documentation skills
• Elite customer service skills
• Professional communication skills
• Attention to detail
• Ability to follow directions
• Proven ability to prioritize work and manage multiple assignments to meet deadlines
• Integrity, tact, discretion, good judgment, wisdom to make good decisions
• Ability to make a difference and increase customer satisfaction

All your information will be kept confidential according to EEO guidelines.

You must pass the following:

• Background check
• Drug test
• Have reliable transportation

Possible employment type: Full-time

Possible allowed location: Coral Gables, FL

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