System Administrator (Tier 2) – ESS / LENEL Systems

Company Description

Taurean ensures the security and efficiency of information management for organizations, focusing on Program Management, Logistics, Unified Process Innovation, and Security. We are committed to creating meaningful work opportunities and positively influencing our clients and communities. As a Service-Disabled Veteran-Owned Small Business (SDVOSB) and ISO 9001 Certified company, we strive to deliver exceptional services. Follow us on Twitter at @TaureanCyber or find us on Facebook at Taurean Cyber to learn more.

System Administrator (Tier 2) – ESS / LENEL Systems

Location:
 USSOUTHCOM (On-site)

Clearance:
 Active Top Secret (TS/SCI) required

Employment Type:
 Full-Time

Company:
 Taurean

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Position Overview

We are hiring a System Administrator (Tier 2) to support Electronic Security Systems (ESS) and LENEL platformsin a high-security DoD environment.

This role sits at the core of day-to-day system operations—owning administration, troubleshooting, monitoring, and sustainment of mission-critical infrastructure. You’ll bridge Tier 1 and Tier 3, resolving advanced issues while escalating only when necessary.

If you’re someone who thrives in operational environments where uptime, security, and responsiveness matter, this is that role.

Key Responsibilities

LENEL & ESS System Administration

• Operate and administer LENEL access control systems and supporting ESS infrastructure
• Perform day-to-day system administration, configuration, and maintenance
• Integrate ESS hardware with network infrastructure (switches, servers, fiber, power systems)

Tier 2 Technical Support

• Provide Tier 2 support, resolving advanced technical issues escalated from Tier 1
• Troubleshoot application, database, and system-level issues
• Collect and analyze diagnostic data (applications, APIs, databases)
• Escalate complex issues to Tier 3 when required

Core Infrastructure & Services

• Support and maintain:
• DNS (IPv4 primary/secondary services)
• Active Directory (AD), Group Policy, DHCP, Certificates
• AAA (Authentication, Authorization, Accounting) and access control systems

Security & Monitoring

• Configure and manage log collection and SIEM integration
• Monitor, analyze, and respond to security alerts and system events
• Tune SIEM rule sets to reduce false positives and improve detection
• Conduct monthly vulnerability scans and recommend remediation actions

Systems, Storage & Virtualization

• Manage and troubleshoot:
• Storage Area Networks (SAN)
• Virtualized environments and system provisioning
• Support backup and recovery operations, including testing and validation

System Operations & Maintenance

• Perform:
• System imaging, patching, and upgrades (including STIG compliance)
• Performance monitoring, tuning, and capacity planning
• Application deployment and lifecycle support
• Configure system resources (CPU, memory, disk) for optimal performance

End-User & Device Support

• Support end-user systems and devices, including:
• Provisioning/de-provisioning
• Thin/zero client environments
• Application virtualization

Reporting & Compliance

• Produce daily, weekly, and monthly system health reports (deliverables)
• Develop and maintain:
• Preventative maintenance plans (within 30 days of award)
• Maintenance tracking for vendor systems (Lenel, SolarWinds, NetApp, etc.)
• Ensure compliance with DoD policies, CYBERCON, and security procedures

Incident Response & On-Call Support

• Participate in on-call rotation, responding to critical outages within 2 hours
• Support after-hours, weekend, and holiday operations as required

Physical Security & Field Support

• Assist with ESS and CCTV infrastructure sustainment and troubleshooting
• Support physical security systems (e.g., screening equipment, access control devices)
• May require use of lifts or similar equipment for infrastructure support

Training & Advisory

• Train end users on system operation and maintenance
• Provide technical recommendations for system improvements and procurements

Required Qualifications

Certifications (Required)

• CompTIA Security+ (Security+) or equivalent (DoD 8570/8140 compliant)
• Cisco Certified Network Associate (CCNA) or equivalent

Clearance

• Active Top Secret (TS/SCI) clearance (required)

Experience

• 3–5+ years of experience in:
• System administration within DoD or secure enterprise environments
• Tier 2 technical support and troubleshooting
• Hands-on experience with:
• Active Directory and enterprise infrastructure services
• SIEM/log management tools
• System patching, STIGs, and vulnerability remediation

Preferred Qualifications

• Experience with:
• LENEL access control systems
• VxRail, NetApp, SolarWinds, Thales environments
• Familiarity with:
• CMMC, NIST 800-171, RMF frameworks
• Experience supporting ESS / physical security systems

What Success Looks Like

• Issues get resolved before they impact operations
• Systems stay patched, compliant, and stable
• You reduce noise (false positives) and increase signal (real threats)
• You operate like an owner of the environment—not just support

Why Taurean

At Taurean, we don’t hand off problems—we own execution.

You’ll be part of a team working in real environments, with real stakes, where performance matters.

If it doesn’t run, it doesn’t matter.