Mission-Critical Systems Support Lead (TS/SCI)

AMERICAN SYSTEMS; Colorado; On-site; USD 96,800 - 161,500; Full time

Job summary

AMERICAN SYSTEMS is seeking a Senior Systems Administrator to support mission systems in a TS/SCI environment at Cheyenne Mountain, Colorado. The role requires strong leadership, system administration, and oncall incident response skills to ensure operational readiness and data integrity.

Responsibilities include oncall support, troubleshooting, maintenance, and documentation to meet security and audit requirements.

Qualifications

• Active TS/SCI clearance required to start and maintain
• Bachelor’s degree or equivalent DoD training in a related technical discipline
• 7–10 years of systems or network administration experience in secure, mission-critical environments
• Strong leadership and cross-domain coordination to drive task success

Responsibilities

• Deliver onsite and oncall technical and operational support for mission systems
• Perform troubleshooting and corrective actions for hardware, software, network, and system performance issues
• Conduct preventive and corrective maintenance including patches, updates, and performance tuning
• Provide firstline user support and training for system access and basic operations
• Maintain logs, incident reports, and checklists per security standards
• Perform incident response including triage and escalation
• Execute backup and restore operations to ensure data integrity and availability
• Support system administration and database tasks as needed
• Ensure records and reports meet security and audit requirements
• Act as a technical resource for performance optimization and status reporting

Skills

Leadership

Project management

Documentation

Incident response

Troubleshooting

Communication

Security awareness

Education

Bachelor's degree in Information Technology, Cybersecurity, Computer Science, Information Systems, Data Science, Software Engineering, or related field

Equivalent DoD/Military training in systems administration, network operations, or related discipline

Tools

DoD 8140 certifications (e.g., Cloud+ or Security+)

Monitoring tools

Backup and restore tools

TS/SCI handling procedures

Job description

AMERICAN SYSTEMS is seeking a Senior Systems Administrator to support mission systems in a TS/SCI environment at Cheyenne Mountain, Colorado. The role requires strong leadership, system administration, and oncall incident response skills to ensure operational readiness and data integrity.

Responsibilities include oncall support, troubleshooting, maintenance, and documentation to meet security and audit requirements.