Windows Administrator III

HI-TEX Solutions is a Texas based Managed Service Provider and cybersecurity focused technology partner serving organizations nationwide for more than twenty years. We specialize in managed IT services, cybersecurity, compliance, cloud infrastructure, and technology modernization for organizations operating in highly regulated and operationally critical environments. Our client base includes healthcare organizations, financial services firms, legal practices, first responders, government entities, and growing mid market businesses that depend on secure, reliable, and scalable technology environments. Our technical team is built around accountability, ownership, continuous improvement, and customer experience. We pride ourselves on delivering enterprise level technical expertise with a responsive, relationship driven approach. Position Overview The Windows Support team provides industry leading support to HI-TEX Solutions customers as part of a collaborative service organization supporting diverse environments across the United States. Our team works across small business, mid market, and enterprise customer environments supporting modern Microsoft infrastructure, virtualization platforms, cloud services, cybersecurity initiatives, and compliance driven technology operations. The Windows Systems Administrator Level 3 serves as a senior technical resource responsible for advanced troubleshooting, infrastructure engineering, cloud administration, systems security, automation, and technical leadership. This role is responsible for resolving complex technical escalations, leading infrastructure projects, mentoring junior engineers, and helping standardize and improve technical operations across customer environments. The ideal candidate is highly experienced with Microsoft technologies, hybrid cloud infrastructure, virtualization, automation, cybersecurity, and compliance focused environments. Key Responsibilities Advanced Technical Support & Escalation Serve as the senior escalation point for advanced infrastructure and systems related incidents Diagnose and resolve complex Windows server, networking, virtualization, cloud, and application issues Troubleshoot performance bottlenecks, authentication issues, replication problems, storage concerns, and infrastructure instability Provide root cause analysis and long term remediation recommendations Maintain ownership and communication throughout the incident lifecycle Microsoft Infrastructure Administration Administer and maintain Windows Server environments across customer infrastructures Manage Active Directory, Group Policy, DNS, DHCP, file services, print services, and Microsoft core infrastructure services Support and optimize hybrid identity environments utilizing Active Directory and Microsoft Entra ID Configure and manage Microsoft 365 platforms including Exchange Online, Teams, SharePoint, and security integrations Implement and maintain Microsoft Intune, Conditional Access, endpoint security policies, and device compliance standards Deploy, maintain, and troubleshoot Hyper V and VMware environments Support Azure infrastructure, AWS infrastructure, cloud migrations, and hybrid cloud environments Assist with infrastructure modernization initiatives including server migrations, virtualization projects, storage upgrades, and tenant consolidations Support business continuity, disaster recovery, and backup validation processes Assist in maintaining secure and scalable infrastructure standards across managed environments Security & Compliance Participate in cybersecurity hardening initiatives and compliance related projects Support customer environments subject to frameworks such as SOC 2, HIPAA, CJIS, and security best practices Assist with implementation and management of endpoint security, MFA, Conditional Access, and security monitoring solutions Participate in remediation of vulnerabilities, security incidents, and audit findings Contribute to maintaining secure operational standards across client environments Automation & Process Improvement Develop and maintain PowerShell scripts and automation workflows Contribute to proactive maintenance and operational efficiency initiatives Create and maintain technical documentation, standards, and implementation procedures Identify opportunities for automation and standardization across customer environments Mentor and support Level 1 and Level 2 administrators Participate in technical training initiatives and knowledge sharing Collaborate with project teams, account management, security teams, and leadership Contribute to continuous improvement initiatives across service delivery operations Support a culture of accountability, professionalism, and customer success Required Skills & Experience Advanced experience administering Windows Server environments Strong knowledge of Active Directory, Group Policy, DNS, DHCP, and Microsoft server technologies Experience managing Microsoft 365, Microsoft Entra ID, Intune, Conditional Access, and endpoint management solutions Advanced troubleshooting skills across infrastructure, networking, and cloud environments Experience supporting virtualization platforms including Hyper V and VMware Strong PowerShell scripting and automation experience Experience supporting SQL Server environments and related troubleshooting Strong understanding of networking concepts including VLANs, VPNs, routing, switching, and firewall fundamentals Experience supporting backup, disaster recovery, and business continuity solutions Experience working within managed services or multi tenant support environments Excellent verbal and written communication skills Strong customer service mindset and professional communication skills Ability to prioritize workload and manage multiple technical issues simultaneously Strong ownership mentality and follow through Ability to mentor junior technical staff and contribute to team development Preferred Qualifications Microsoft certifications such as MCSA, MCSE, Azure Administrator, Microsoft 365 Administrator, or Security certifications Experience with Azure cloud environments and hybrid infrastructure Familiarity with ConnectWise Manage, ConnectWise Automate, PRTG, Trend Micro Vision One, or similar platforms Experience with cybersecurity focused operational environments Familiarity with infrastructure monitoring and RMM platforms Amazon Web Services experience is a plus Experience working with healthcare, financial, legal, public safety, or government organizations is a plus What Success Looks Like Delivering timely and accurate resolution of advanced technical issues Maintaining high customer satisfaction and strong communication standards Successfully leading or contributing to infrastructure projects and migrations Improving operational efficiency through scripting, automation, and process improvement Supporting infrastructure security, stability, and standardization Mentoring junior team members and contributing to technical growth across the organization Maintaining professionalism and accountability in fast paced customer environments Why Join HI-TEX Solutions At HI-TEX Solutions, you will work alongside experienced engineers supporting a wide range of technologies, industries, and security focused environments. Our team is deeply involved in modern cloud infrastructure, cybersecurity, compliance initiatives, automation, and enterprise technology operations. We believe in investing in our people, developing technical expertise, and building long term career opportunities for driven professionals who want to solve meaningful technical challenges. You will have the opportunity to: Work on diverse and technically challenging environments Gain exposure to cybersecurity and compliance focused operations Participate in cloud modernization and infrastructure transformation projects Collaborate with experienced technical and leadership teams Continue developing technical and professional skills Make a direct impact on customer success and operational stability If you are passionate about infrastructure engineering, cybersecurity, cloud technologies, and solving complex technical problems, we encourage you to apply. #J-18808-Ljbffr Hi-Tex Solutions