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 **************
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 SysOps Administrator – Associate or higher)
Microsoft certifications related to Windows Server or cloud platforms
Experience with PowerShell automation and infrastructure‐as‐code concepts
Experience with Infrastructure‐as‐Code (IaC) (Terraform, Ansible, CloudFormation)
Experience with scripting/automation in Bash, Python, or PowerShell
Physical Abilities / Demands
Ability to support after‐hours maintenance windows and possible on‐call rotations
Ability to work extended periods at a computer and respond to incidents as required
Knowledge & Competencies
Ability to make operational and technical decisions related to system configuration, migration readiness, troubleshooting, and cloud resource optimization
Capable to plan and execute work independently, coordinate with network, cloud, application, and security teams, and escalates risks appropriately, providing technical guidance to peers or project teams.
Must be able to troubleshoot both routine operational issues and complex migration‐related problems involving OS behavior, cloud infrastructure, and application dependencies.
Requiring disciplined troubleshooting, adaptability, and a bias toward automation and long‐term operational improvement rather than one‐off fixes.
We Offer
Protegido de gastos medicos mayores familiar, Seguro de vida, fondo de ahorro, vales de despensa, vales de restaurante, bono anual, apoyo deportivo, prima vacacional del 100%, 15 días de vacaciones, 30 días de aguinaldo y estacionamiento.
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📌 Windows Administrator (Xico)
🏢 CRH Talento en IT
📍 Xico