The Windows Administrator is responsible for the design, operation, security, and optimization of Windows-based infrastructure across on-premises and AWS EC2 environments. The role exists to ensure highly available, secure, and cost-effective Windows systems that support business-critical workloads in a hybrid cloud model.
Responsibilities & Duties Administer, configure, and support Windows Server environments across on-prem and AWS EC2, including OS deployment, patching, performance tuning, and lifecycle management. Provide hands‑on operational support for AWS EC2 Windows workloads, including instance provisioning, AMI creation and maintenance, right‑sizing, cost optimization, and availability design. Manage Active Directory, Group Policy, DNS, DHCP, and identity integration across hybrid environments, ensuring secure authentication and authorization. Monitor system health, availability, and performance across Windows and AWS EC2 platforms; troubleshoot incidents, perform root‑cause analysis, and implement permanent fixes. Implement and maintain security hardening, patching standards,



vulnerability remediation, and compliance controls for Windows systems in AWS and on‑prem. Develop and maintain technical documentation, standards, automation scripts, and operational runbooks. Position Requirements Bachelor’s degree in Computer Science, Information Systems, or equivalent professional experience 5+ years of experience as a Windows or Systems Administrator 3+ years of hands‑on AWS EC2 support experience for Windows‑based workloads Strong expertise with Windows Server 2016/2019/2022 Deep experience with Active Directory, Group Policy, DNS, and DHCP in hybrid environments Preferred Experience supporting production workloads in AWS at scale AWS certifications (AWS Sys Ops Administrator – Associate or higher) Microsoft certifications related to Windows Server or cloud platforms Experience with Power Shell automation and infrastructure‑as‑code concepts Experience with Infra

📌 Windows administrator (México)
🏢 CRH Talento en IT
📍 México