System Administrator

CLEARANCE REQUIREMENT:This position requires an active, adjudicated Top Secret clearance with SCI eligibility — currently in hand.

Candidates who do not hold this clearance will not be considered and need not apply.No clearance sponsorship is available. U.S. Citizenship is required. Clearance will be verified prior to offer.

About Taurean

TAUREAN

Taurean is a mission-driven defensive cyber operations firm delivering security engineering, risk management, and compliance execution for federal and regulated environments. Our teams protect operational systems, sensitive data, and high-assurance environments through disciplined engineering, structured compliance frameworks, and operational rigor.

Guided by our vision — Find Relevant Work. Create Meaningful Jobs. Transform Lives — for the Glory of God! — we build teams grounded in accountability, professional growth, and purposeful contribution. Our culture emphasizes strong leadership, family-first principles, and continuous development within a collaborative, performance-focused environment.

This is a Key Personnel position. The resume submitted for this role will be evaluated as part of the proposal. A minimum of five (5) years of experience specifically related to System Administrator functions is required. Resume must not exceed 3 pages including certifications.

Taurean is hiring a Physical Security System Administrator to operate and administer the LENEL ESS system and provide Tier 2 IT support for the client's Physical Security program on-site in Doral, Florida. This role is the primary LENEL system administrator and technical escalation point between end users and the Tier 3 Network Engineer — responsible for day-to-day system health, user support, vulnerability management, and infrastructure sustainment.

• Operate the LENEL access control system and perform all System Administrator functions; serve as the primary LENEL technical point of contact for the Physical Security program
• Provide IT Tier 2 service: in-depth technical troubleshooting; investigate elevated issues and seek known solutions; elevate to Tier 3 (Network Engineer) when issues exceed scope or permissions
• Train users on equipment operation; generate and dispense user codes; provide end-user training documentation; retain copies for one (1) year
• Integrate ESS hardware with network infrastructure — switches, servers, fiber transfer systems, battery backup — to successfully operate the ESS

• Provide systems operations services including imaging, patching, application deployment, system monitoring, and service operations
• Apply OS patches and STIGs on a regular basis; upgrade administrative tools and utilities; configure and add new services as needed
• Perform periodic performance tuning, hardware upgrades, and resource optimization; configure CPU, memory, and disk partitions as required
• Manage, update, and troubleshoot all SAN and storage technology devices across the client's Security ESS network
• Provide services for virtualized platforms including automated system provisioning, deployment, and servicing of physical and virtual enclaves
• Manage AD services including DNS, DHCP, group policy, and certificates
• Engineer, install, operate, and maintain end-user devices including thin/zero client services, imaging, monitoring, patching, and application virtualization
• Engineer, install, operate, and maintain a password management system; contractor is responsible for implementation (no Government-provided solution in place)

• Configure and maintain all network equipment for log collection and retention; configure, maintain, analyze, and monitor SIEM data to detect and respond to threats…