Senior System Engineer

Confidential Company

Managing Windows and Linux server environments, including installation, patching, hardening, monitoring, and troubleshooting. Administering Active Directory, Group Policy, DNS, DHCP, file servers, user access controls, and privileged accounts. Managing storage infrastructure including SAN/NAS, iSCSI, RAID, redundancy, performance monitoring, and backup integration for clinical systems. Supporting backup, disaster recovery, and data protection activities, including scheduled backups, EMR/database restoration testing, backup verification, and DR documentation. Managing PKI and certificate services, including internal certificates, OpenSSL certificate creation, SSL renewal, RADIUS authentication, and certificate lifecycle management. Supporting enterprise Wi-Fi infrastructure, including WPA2/WPA3 Enterprise, RADIUS authentication, certificate-based access, VLAN assignment, and secure wireless access controls. Managing network infrastructure including switches, VLANs, trunk/access ports, STP/RSTP, loop prevention, redundant uplinks, firewall connectivity, VPN, and failover testing. Monitoring IT systems and responding to incidents, alerts, security issues, system failures, and performance problems. Maintaining IT documentation, asset inventory, network diagrams, backup reports, restoration test evidence, and audit compliance records.