Systems Administrator, TS/SCI (DoD) — 12h Panama Schedule

Archer; Florida; On-site; USD 90,000 - 120,000; Full time

Job summary

Archer, in collaboration with MANTECH, seeks a Systems Administrator to support enterprise server infrastructure in Doral, FL. The role operates on a Panama Schedule with day and night shifts, including weekends and holidays.

You will manage Windows and Linux servers, Active Directory, patch management, and cross-team collaboration to maintain security and uptime. Responsibilities include configuring virtualization, documenting baselines, and driving improvements to IT operations.

Qualifications

• 7+ years of systems administration experience or 3+ years with a relevant degree.
• Experience with Windows, Linux, AD and virtualized enterprise environments.
• Proficient with patch management, baseline configuration, and hardware maintenance.
• Strong troubleshooting skills and ability to document complex IT details.

Responsibilities

• Install, configure, maintain, and troubleshoot enterprise server hardware and virtualization.
• Manage user accounts, permissions, AD structures, and group policies across networks.
• Perform routine maintenance, patching, upgrades, and security baselining.
• Monitor performance, storage, and services; resolve bottlenecks proactively.
• Collaborate with cross-functional teams to maintain high system availability.
• Maintain configuration management records and operational inventories.
• Recommend and implement process improvements in IT administration.

Skills

Windows & Linux server administration

Active Directory

Patch management

Documentation

Team collaboration

Education

High School Diploma + 7+ years experience

Bachelor's degree in CS/IT + 3+ years

Associate's degree + 5+ years

Tools

VMware

Patching tools

Job description

Archer, in collaboration with MANTECH, seeks a Systems Administrator to support enterprise server infrastructure in Doral, FL. The role operates on a Panama Schedule with day and night shifts, including weekends and holidays.

You will manage Windows and Linux servers, Active Directory, patch management, and cross-team collaboration to maintain security and uptime. Responsibilities include configuring virtualization, documenting baselines, and driving improvements to IT operations.