IT Infrastructure Systems Administrator

Who We AreOWL Services is the premier sales, installation, program management and service provider to retail, commercial, fleet, aviation and marine, and emergency power generation companies across the U.S.With 33 offices and distribution centers and more than 1,400 field service professionals, OWL delivers on a service platform that includes construction, compliance and testing, maintenance and repair, modernization and re-imaging, and EV charging solutions to keep businesses and people moving 24 hours a day, 7 days a week, 365 days a year.The Role:This is an onsite role- must be within 30-40 miles of our office location in Irving, TX.OWL Services is seeking an IT Infrastructure–focused Systems Administrator to own our on-premises Active Directory and core Windows infrastructure in a complex, multi-domain, hybrid environment. This is not a ticket-driven support role—it focuses on designing, standardizing, securing, and modernizing identity and infrastructure across multiple business units.The ideal candidate has hands-on experience leading Active Directory cleanup and restructuring, with strong expertise in Windows Server across on-premises and Azure. This role requires enforcing standards, driving remediation, and operating effectively in M&A-driven environments while working independently and collaborating across teams.Responsibilities:Active Directory & Identity OwnershipOwn AD architecture, health, and strategy across multiple domainsLead AD cleanup/restructuring (OU design, GPOs, lifecycle)Manage identity and access (service accounts, groups, Entra ID governance)Enforce standards for naming, access, group design, and least-privilegeServer & Infrastructure ManagementBuild, administer, and maintain Windows Server environments (on-prem and Azure)Manage physical/virtual infrastructure (VMware, Hyper-V, Azure, Scale) and lifecycle and lifecycleSupport modernization efforts, including migration to hybrid/cloud environmentsPatching, Configuration & OperationsOwn server patching (NinjaOne); partner with IT Operations team on endpoint patching (Intune)Maintain consistent configuration management (GPOs, baselines, policies) across environmentsDevelop PowerShell automation to improve efficiency and consistencyBackup & ResilienceOwn backup strategy and systems; ensure regular recovery testing for disaster recovery readinessSecurity & RemediationLead remediation of findings from audits, vulnerability scans, and penetration testsImplement and maintain infrastructure security and hardening standardsAdminister and maintain security platforms (e.g., CrowdStrike, Defender) in coordination with eSentire (SOC-as-a-Service)CollaborationPartner across IT Infrastructure, Operations, Applications, and Development teamsWork with business stakeholders to understand needs and communicate impactsOperate independently while aligning with IT priorities and standardsRequirements and Skills:5+ years of hands-on experience administering Windows infrastructure and Active Directory environmentsProven experience owning and redesigning Active Directory environments (not just supporting them)Demonstrated success in:Active Directory cleanup, consolidation, or restructuring initiativesGPO design and standardization at scaleManaging multi-domain and/or M&A-driven environmentsStrong expertise in:Active Directory (DNS, GPO, replication, trusts)Identity & Access Management principlesPowerShell automationExperience with:Leading security remediation efforts from audits or penetration testsHybrid identity (Entra ID / Azure AD Connect) and hybrid-joined environmentsInfrastructure patching and configuration managementBackup and disaster recovery planning and validationCore competencies:Ability to manage projects and priorities independently without constant supervisionSolid understanding of networking fundamentals (TCP/IP, DNS, DHCP, VPNs, VLANs, segmentation)Able to collaborate effectively within a distributed IT teamCompensation and Benefits:10 Paid HolidaysFlexible Time Off401(k) with Company MatchHealth, Dental, and Vision InsuranceHSA and FSADisability & Occupational Accident InsuranceCompany-Paid Life InsuranceEmployee Assistance Program (EAP)Career development through world-class training programs