Senior Windows Systems & Active Directory Administrator - Columbus, OH

WHO WE ARE:

Founded in 2007, DTI (Diversified Technology, Inc.) is a successful African American owned IT Consulting/Staffing firm based in Chicago's Loop.

WHAT WE DO:

We focus on providing delivery, staffing, and supported services such as enterprise integration/implementations including, but not limited to, CRM, EAM, ERP, PMO, and QA. We service clients in SLED (state/local gov't & education), financial services, fortune, public utility, as well as regularly partnering with Big 4 SI partners.

Senior Windows Systems & Active Directory Administrator - Lead

Location: Columbus, OH (Hybrid – Tuesday to Thursday onsite)

Duration: Contract to Hire after 3 Months

This person will be leading a team of 10+ people

Key Responsibilities:

Serve as technical lead for infrastructure and migration projects

Administer and manage enterprise Active Directory environments

Design and maintain Group Policy (GPO), DNS, DHCP, and PKI services

Troubleshoot and optimize Windows Server performance and authentication services

Manage patching cycles, vulnerability scanning, and remediation efforts

Monitor and resolve security vulnerabilities in compliance-driven environments

Lead infrastructure upgrades, migrations, and virtualization initiatives

Support identity and access management solutions (Azure AD, Microsoft Entra ID, Microsoft 365, PingID)

Automate administrative tasks using PowerShell scripting

Collaborate with cross-functional teams and lead a team of engineers

Required Qualifications:

5+ years of hands-on experience with Active Directory in large enterprise environments

Expert-level knowledge of Windows Server administration

Strong experience with AD architecture, replication, and Group Policy

Experience with patching and vulnerability management tools (e.g., Tanium, Qualys)

Strong troubleshooting and performance optimization skills

Experience leading infrastructure or migration projects

Proficiency in PowerShell scripting and automation

Preferred Qualifications:

Experience with cloud identity solutions (Azure AD / Microsoft Entra ID)

Familiarity with Microsoft 365 and identity federation tools (e.g., PingID)

Experience with virtualization platforms (VMware or cloud-based environments)

Background in compliance-driven or regulated environments

Work Environment:

Hybrid work model (onsite Tuesday through Thursday)

Opportunity for full-time conversion based on performance

Leadership role managing a team of 10+ members

Parking is available which is not reimbursable and it will cost approx. $95 per month

Pay rate: $59.54 - 72.93/hr and Salary on conversion will be $135K + 10% bonus

Please click on the link below for our company benefits

DTI is an Equal Opportunity Employer. We do not discriminate based on race, color, religion, sex, gender identity, sexual orientation, national origin, ancestry, age, disability, marital status, veteran status, or any other protected characteristic under Illinois state or federal law. All qualified applicants are encouraged to apply, and employment decisions are based solely on merit, qualifications, and business needs.