Lead Windows System Administrator

TEKsystems•Burlington, NJ

4d•Hybrid

About The Position

We’re seeking a talented Lead Windows System Administrator with deep expertise in Microsoft and VMware technologies, Azure cloud services, and Microsoft 365 to join our dynamic team that manages the core infrastructure driving business operations. In this role, you’ll support both on-premises and cloud environments, play a key part in infrastructure projects, and ensure the ongoing security, stability, and performance of our systems. The Windows Administration Team is responsible for maintaining and advancing Burlington’s Microsoft ecosystem — including Active Directory, M365, SharePoint Online, SQL, and the broader Microsoft Collaboration Suite. In addition, the team supports key service platforms such as VMware, compute, storage, backup, and other critical infrastructure technologies. This position requires participation in an on-call rotation and offers a primarily remote schedule, with on-site presence approximately 4 days per month or as needed based on project or support needs.

Requirements

Bachelor's degree in Computer Science, Information Technology, or a related field preferred
5 years of experience in systems administration with Windows Server administration experience (2016,2019, 2025)
Experience in Active Directory, Azure AD and Microsoft 365 administration
Expertise with VMware (ESXi, vCenter, vSphere) and virtualization best practices.
Solid understanding of core infrastructure services: DNS, DHCP, DFS, IIS, Group Policy, RDS.
Experience with Microsoft SQL database infrastructure.
Experience with Azure cloud services and Azure DevOps (CI/CD pipelines, infrastructure automation).
Expertise with Veeam Backup and Replication Suite, including VeeamOne.
Expert PowerShell scripting skills for automation and configuration management.
Experience with security best-practices, patch management, and compliance standards.
Expertise with server hardware (e.g. Cisco, HP rack-mounted and blade systems).
Extensive experience with shared storage platforms and concepts
Working knowledge of monitoring and endpoint management tools (e.g., BigFix, Datadog, SolarWinds).
Familiarity with ITIL, COBIT, and project management methodologies.

Nice To Haves

engineering experience
strong VMware expertise
Azure
PowerShell proficiency for automation
engineering experience who is also willing to do some admin work
VMware expertise is particularly important for this Windows role, to round out the team
Strong engineering experience particularly in the Microsoft cloud and VMware

Responsibilities

Design and implement hybrid infrastructure solutions using Azure IaaS/PaaS and on-prem vSphere
Manage Azure services (VMs, networking, storage accounts, Azure AD, backup, monitoring)
Oversee VMware infrastructure (vCenter, ESXi hosts, HA/DRS clusters, vSAN)
Administer enterprise storage platforms
Automate system tasks using PowerShell, Azure CLI, or Terraform
Lead incident response, root cause analysis, and performance tuning
Collaborate with security and networking teams to enforce compliance and governance
Participation in an on-call rotation is required, and as-needed based on project/support requirements.
Mentor junior administrators and contribute to infrastructure roadmaps