System Administrator (2026-0235)

About the role

Acclaim Technical Services (ATS), founded in 2000, is a premier provider of tech-enabled solutions and operational services to a broad range of U.S. Federal agencies. As an Employee Stock Ownership Plan (ESOP) company—an uncommon advantage in our sector—we foster a culture of ownership, accountability, and shared success. This commitment to our people shows: ATS is consistently recognized as a top workplace in the DC area and continues to experience strong, strategic growth. We are actively hiring a System Administrator with TS/SCI w/ Poly to join our team working in Chantilly, VA. The System Administrator will manage and maintain enterprise infrastructure systems including storage, virtualization, and cloud environments. This position requires hands-on technical expertise in NetApp and VMWare platforms, combined with automation and scripting capabilities to support patching, configuration management, and system accreditation processes. The administrator must be proficient in managing complex infrastructure environments while implementing automation solutions to enhance operational efficiency and security compliance.

Responsibilities

• Administer and maintain NetApp storage systems to ensure optimal performance and availability
• Manage VMWare virtualization infrastructure including vSphere/ESXi environments
• Execute hardware patching procedures across enterprise systems to maintain security and stability
• Develop and maintain Ansible scripts for configuration management and automation workflows
• Create and optimize Bash scripts for system administration tasks and operational efficiency
• Implement automation solutions for routine patching and maintenance of operating systems
• Support cloud infrastructure patching with automated processes and tools
• Manage PKI infrastructure and x509 certificate lifecycle across enterprise systems
• Administer LDAP directory services and authentication mechanisms
• Support system accreditation processes including documentation and compliance validation
• Monitor system performance and proactively address potential issues before they impact operations
• Coordinate and execute planned maintenance windows with minimal disruption to services