Systems Administrator

Job Summary Responsible for the design, administration, maintenance, and optimization of enterprise servers, virtualization, and storage infrastructure. This role ensures the availability, performance, security, and resiliency of Windows and Linux systems hosted on VMware platforms, including underlying hardware and SAN storage. The position supports automation, patching, backup/recovery, and domain services while contributing to operational efficiency and infrastructure modernization. Primary Job Responsibilities Infrastructure & Virtualization Administer and support enterprise virtualization platforms (VMware vSphere/ESXi, vCenter). Manage physical server hardware, including installation, firmware upgrades, lifecycle management, and performance tuning. Provision, configure, and maintain Windows and Linux server environments in both virtual and physical deployments. Perform capacity planning and resource optimization across compute, memory, and storage layers. Storage & SAN Management Administer SAN/storage systems, including LUN provisioning, zoning, and performance monitoring. Manage storage allocations and ensure high availability and optimal performance for hosted workloads. Support fiber channel and/or iSCSI configurations. System Administration & Domain Services Administer Active Directory, including Group Policy, DNS, DHCP, and domain services. Manage identity, access, and system-level security configurations. Perform server builds, system hardening, and configuration according to security best practices. Patch Management & Security Develop and execute patch management processes for Windows and Linux systems. Harden systems based on industry and organizational security standards. Support vulnerability remediation efforts in coordination with security teams. Backup, Recovery & BCDR Manage enterprise backup solutions and ensure successful completion of backup jobs. Design, test, and maintain disaster recovery and failover procedures. Participate in Business Continuity and Disaster Recovery (BCDR) planning and execution. Monitoring, Performance & Incident Response Monitor system health, performance, and availability across infrastructure layers. Analyze trends and recommend improvements to system reliability and efficiency. Troubleshoot and resolve complex infrastructure issues and participate in root cause analysis. Database & Application Support (Minor) Provide basic administration support for database platforms (e.g., SQL Server), including monitoring, backups, and maintenance tasks. Collaborate with application teams to ensure infrastructure alignment with application requirements. Minimum Qualifications Position requires a bachelor’s degree in computer science, information systems, or a related field and a minimum of 3-5 years of experience administering enterprise infrastructure environments. Will accept an equivalent combination of education and experience. Required Technical Skills Virtualization: VMware vSphere, ESXi, vCenter administration Operating Systems: Windows Server (2016/2019/2022 or later), Linux (RHEL, Ubuntu, or equivalent) Storage: SAN platforms (Fiber Channel and/or iSCSI) Active Directory, Group Policy, DNS/DHCP Patch management and system hardening practices Backup and recovery solutions and concepts (BCDR) Preferred Qualifications VMware certifications (VCP or higher) Microsoft certifications (e.g., Windows Server, Azure-related) Experience with enterprise backup platforms (e.g., Veeam, Commvault, etc.) Familiarity with monitoring tools and logging platforms Basic database administration experience (SQL Server or equivalent) Additional Requirements Strong analytical and troubleshooting skills with the ability to resolve complex technical issues independently. Strong communication skills with both technical and non-technical stakeholders. Ability to participate in an on-call rotation (24/7 support as needed). Delta Dental of Kentucky is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, disability, or veteran status. #J-18808-Ljbffr Delta Dental of Kentucky