| Location | Annapolis, MD |
Responsibilities: for the Windows/Linux System Administrator include: • Administer and support Avaya telephony systems, call recording platforms, and workforce management tools. • Install, configure, and maintain Windows and Linux server environments. • Manage VMware ESXi and vCenter infrastructure, including upgrades and troubleshooting. • Troubleshoot issues involving Active Directory, DNS, DHCP, LDAP, networking, and system integrations. • Apply operating system patches, perform preventive maintenance, and monitor system health. • Partner with security teams to remediate vulnerabilities and ensure compliance requirements are met. • Participate in a rotational on-call schedule supporting 24x7x365 operations. Qualifications: for the Windows/Linux System Administrator include: • Active Secret Security Clearance required. • 7+ years of experience supporting telephony systems in a Systems Administrator or Systems Engineer role. • Hands-on experience with Windows Server and Linux administration. • Experience supporting Avaya platforms, call recording solutions, and workforce management applications. • Strong VMware experience with ESXi, vCenter, and virtualization technologies. • Knowledge of Active Directory, Group Policy, IPv4/IPv6 networking, certificate management, and security remediation.