Implement and operate security tooling: endpoint detection & response (EDR), patch and vulnerability management, MFA and conditional access, email security, logging and monitoring with retention per DFARS 252.204-7012, and backup / disaster recovery. * Install and commission door access control panels and hardware — access panels/controllers (e.g., Lenel, UniFi Access), credential readers, electric strikes/locks, and door position devices — including hands-on low-voltage installation work.