System Administrator Windows

Computer World Services Corp (CWS) is seeking a detail‑oriented and results‑driven System Administrator – Windows who is responsible for the daily configuration, operation, monitoring, and maintenance of enterprise Windows server environments supporting NIEHS mission‑critical systems. This role ensures stable, secure, and efficient system performance across physical and virtual infrastructure.

• Perform daily configuration and operation of Windows Server systems in a client/server enterprise environment
• Install, configure, patch, and maintain Windows Server operating systems and associated services
• Support Active Directory, Group Policy, DNS, DHCP, and enterprise identity services
• Ensure system stability, availability, and compliance with organizational standards

• Participate in system engineering activities including deployment, configuration, and integration of Windows‑based infrastructure
• Assist in optimizing system performance and resource utilization across server environments
• Support system capacity analysis and planning for growth, scalability, and workload distribution
• Assist in implementation of system upgrades, patches, and infrastructure enhancements

• Monitor system health, performance, availability, and utilization across Windows environments
• Respond to alerts and incidents to ensure timely resolution of system issues
• Perform root cause analysis for recurring system problems and implement corrective actions
• Support continuous system improvement through proactive monitoring and tuning

• Support Windows Server workloads hosted in VMware vCenter environments
• Assist in provisioning, managing, and maintaining virtual machines
• Monitor virtual resource utilization (CPU, memory, storage) and performance metrics
• Support virtualization troubleshooting and coordination with infrastructure teams

• Support enterprise backup and recovery operations for Windows‑based systems
• Ensure successful execution of scheduled backups in accordance with policies and SLAs
• Assist in system restoration and recovery testing, including file‑level and system‑level recovery
• Support validation of backup integrity and adherence to Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO)

• Provide assistance to users in accessing and utilizing Windows‑based business systems
• Troubleshoot login, access, and application‑related issues
• Support identity and access management processes in coordination with enterprise teams
• Ensure reliable delivery of services to end users across the enterprise environment

• Participate in system maintenance activities including patching, upgrades, and configuration changes
• Coordinate with VMware, storage, backup, and network teams for integrated infrastructure support
• Assist in documentation of system configurations, procedures, and changes
• Support implementation of operational standards and best practices

• Windows Server administration (2016/2019/2022 or equivalent)
• Active Directory, Group Policy, DNS, and DHCP management
• VMware vSphere / vCenter environments
• Enterprise backup and recovery systems (e.g., Veeam, Commvault, or equivalent)
• System monitoring and performance analysis tools
• Basic system capacity planning and resource optimization
• Troubleshooting enterprise Windows infrastructure issues

• Experience supporting Federal or NIH environments
• Familiarity with Red Hat/Linux interoperability in enterprise environments
• Experience with storage systems (SAN, NAS, DASD)
• Experience with Power Shell scripting and automation
• ITIL Foundation certification or IT service management experience
• Familiarity with hybrid cloud environments (e.g., Azure integration)

• Strong technical troubleshooting and analytical skills
• Ability to operate in high‑availability enterprise environments
• Effective communication and collaboration across technical teams
• Attention to detail and operational discipline
• Ability to prioritize and resolve multiple concurrent…