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.
The Windows System Administrator supports engineering, monitoring, backup, and VMware-based virtualization environments while assisting users in accessing and utilizing enterprise business systems.
Key Tasks & Responsibilities
Windows System Administration
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
System Engineering & Optimization
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
Monitoring & Operational Support
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
VMware Virtualization Support
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
Backup & Recovery Support
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)
User Support & System Access
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
Infrastructure Maintenance & Coordination
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
Required Technical Skills
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
Preferred Skills
Experience supporting Federal or NIH environments
Familiarity with Red Hat/Linux interoperability in enterprise environments
Experience with storage systems (SAN, NAS, DASD)
Experience with PowerShell scripting and automation
ITIL Foundation certification or IT service management experience
Familiarity with hybrid cloud environments (e.g., Azure integration)
Key Competencies
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 issues
Strong focus on system reliability and user support
Education & Experience
Education
Bachelor’s degree in Computer Science, Information Systems, Engineering, or related field
Experience
5+ years of experience in Windows system administration in enterprise environments
Experience supporting VMware virtualized environments
Experience with enterprise backup and monitoring systems
Certifications
Windows Server Hybrid Administrator Associate
VMware VCP-DCV
Security+
Azure Administrator Associate
VMCE or equivalent
Certifications such as CompTIA A+, Network+, or Microsoft certifications
ITIL certification preferred
Security Clearance
Applicants must be able to obtain a Public Trust clearance
Computer World Services is an affirmative action and equal employment opportunity employer. Current employees and/or qualified applicants will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, disability, protected veteran status, genetic information or any other characteristic protected by local, state, or federal laws, rules, or regulations.
Computer World Services is committed to the full inclusion of all qualified individuals. As part of this commitment, Computer World Services will ensure that individuals with disabilities (IWD) are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact Human Resources at hr@cwsc.com.