Lead Windows System Administrator

Description
Position Overview
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
our client'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.
A Day in the Life
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
You'll Come With
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.
Skills
microsoft, Microsoft 365, Azure, Cloud, Vmware, Active directory, sharepoint online, windows, powershell, sql, microsoft office, compute, storage, backup, windows server administration
Top Skills Details
microsoft,Microsoft 365,Azure,Cloud,Vmware,Active directory,sharepoint online,windows,powershell
Additional Skills & Qualifications
Key skills include engineering experience, strong VMware expertise, Azure, and PowerShell proficiency for automation. proficiency in PowerShell is necessary for the automation efforts within their environment. engineering experience who is also willing to do some admin work, and highlighted that VMware expertise is particularly important for this Windows role, to round out the team
Strong engineering experience particularly in the Microsoft cloud and VMware
Experience Level
Expert Level
Job Type & Location
This is a Permanent position based out of Burlington, NJ.
Pay and Benefits
The pay range for this position is $95000.00 - $140000.00/yr.
401K - Medical Insurance - Dental Insurance - Vision Insurance - Life Insurance - Disability Insurance - Pet Insurance - Associate Assistance Programs - Tuition Reimbursement - Parental Leave
Workplace Type
This is a hybrid position in Burlington,NJ.
Application Deadline
This position is anticipated to close on May 15, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.