Senior Systems Engineer - Hybrid Cloud & Citrix

LincolnIT LLC; Hicksville (NY); On-site; USD 110,000 - 140,000; Full time

Job summary

LincolnIT LLC is seeking a Senior Systems Engineer to join our Managed Services team in Hicksville, NY. This hands-on role focuses on supporting client environments, implementing infrastructure projects, and deploying on-premises and cloud solutions.

The ideal candidate has deep expertise in Citrix, Windows Server, Microsoft 365, VMware/Hyper-V, Azure, and AWS, and can design, build, and troubleshoot complex infrastructure from the ground up. Travel to client sites is required.

Qualifications

• 7+ years of hands-on systems administration or infrastructure engineering experience.
• Advanced experience with Windows Server administration, configuration, troubleshooting, and server builds.
• Strong experience administering Active Directory, Group Policy, DNS, and DHCP.
• Strong hands-on experience supporting Citrix environments.
• Experience with VMware vSphere/ESXi and/or Hyper-V.
• Experience supporting and deploying workloads within Microsoft Azure.
• Experience with AWS infrastructure and services.
• Strong understanding of Microsoft 365 and Microsoft Entra ID.
• Experience with server and infrastructure migrations.
• Solid understanding of TCP/IP, VLANs, routing, VPNs, firewalls, storage, and general networking concepts.
• Experience troubleshooting complex infrastructure issues across multiple technologies.
• Strong documentation and organizational skills.
• Excellent communication and client-facing skills.
• Ability to manage multiple priorities and projects in a managed services environment.
• Ability to work from the Hicksville office and travel to client locations as required.

Responsibilities

• Provide senior-level technical support for client infrastructure environments.
• Design, build, configure, migrate, and troubleshoot Windows Server environments.
• Deploy and maintain physical and virtual servers, including server builds, upgrades, migrations, and decommissioning.
• Support and administer Citrix environments, including Virtual Apps and Desktops, StoreFront, Delivery Controllers, and related infrastructure.
• Manage virtualization technologies including VMware vSphere/ESXi and Microsoft Hyper‑V.
• Implement and support cloud infrastructure within Microsoft Azure and AWS.
• Support hybrid environments spanning on-premises infrastructure and public cloud platforms.
• Administer Active Directory, Group Policy, DNS, DHCP, Microsoft Entra ID, and Microsoft 365.
• Troubleshoot complex server, application, authentication, network, storage, and performance issues.
• Perform infrastructure migrations, upgrades, and modernization projects.
• Support backup, disaster recovery, business continuity, and infrastructure resiliency solutions.
• Provide escalation support for Help Desk and other engineering teams.
• Participate in client‑facing technical meetings and provide recommendations regarding infrastructure improvements.
• Create and maintain accurate technical documentation, diagrams, procedures, and configuration information.
• Work independently on assigned client projects while coordinating with project managers and other technical resources.
• Travel to client locations throughout the region for onsite support and project work as required.
• Participate in scheduled after‑hours project work and escalation support when required.

Skills

Windows Server

Active Directory

Networking TCP/IP

Citrix environments

VMware vSphere/ESXi

Hyper-V

Azure

AWS

Microsoft 365

Entra ID

Documentation

Client-facing

Tools

Citrix Virtual Apps and Desktops

VMware vSphere/ESXi

Hyper-V

Microsoft Entra ID

Microsoft 365

Job description

LincolnIT LLC is seeking a Senior Systems Engineer to join our Managed Services team in Hicksville, NY. This hands-on role focuses on supporting client environments, implementing infrastructure projects, and deploying on-premises and cloud solutions.

The ideal candidate has deep expertise in Citrix, Windows Server, Microsoft 365, VMware/Hyper-V, Azure, and AWS, and can design, build, and troubleshoot complex infrastructure from the ground up. Travel to client sites is required.