IT SysAdmin
$79.8k - $155.2kGovernment Technical Services Corporation
" Annapolis Junction, United States | Posted on 06/10/2026
Salary $79,800-155,200 / year
City Annapolis Junction
State/Province Maryland
Country United States
Job Description GTSC seeks System Administrators (Level I, II, or III).
Location Hanover, MD (All work is on-site. This is not a hybrid or remote position.)
Mission GTSC seeking System Administrators at multiple experience levels (Level I-III) to support the implementation, troubleshooting, and maintenance of IT systems and infrastructure. Candidates will be responsible for managing system operations, supporting users, and ensuring the reliability, performance, and security of enterprise environments. Level placement will be determined based on experience, technical expertise, and demonstrated capabilities.
Clearance Active Top Secret SCI with polygraph.
Requirements Experience supporting IT systems in enterprise environments (level dependent):
Level I: ~5 years or equivalent experience/training
Level II: ~10 years
Level III: ~15 years
Requires bachelor's degree in a technical discipline (or equivalent experience)
Experience with Windows and/or UNIX/Linux system administration
Familiarity with system monitoring, troubleshooting, and performance tuning
Strong problem-solving and communication skills
Preferred Qualifications Experience with tools such as VMware, ELK Stack, Tripwire, or SELinux
Experience with virtualization, containers, and system security practices
Knowledge of infrastructure automation or scripting (e.g., Bash, PowerShell)
Experience in secure or regulated environments
May require participation in on-call rotation or shift work
Work performed in a team-oriented, mission-focused environment
Additional Information Level will be determined based on candidate qualifications and experience
Salary and responsibilities will align with the selected level
Key Responsibilities (All Levels) Provide support for implementation, troubleshooting, and maintenance of IT systems
Manage daily operations of systems including servers, storage, and network devices
Monitor system performance and ensure availability and reliability
Perform system configuration, patching, and upgrades for Windows and/or UNIX/Linux environments
Troubleshoot hardware, software, and network issues and provide timely resolution
Support users in accessing and utilizing IT systems
Document system configurations, processes, and issue resolutions
Support escalation processes and communicate status to stakeholders
Maintain system security and compliance with organizational standards
Additional Responsibilities by Level Level I (Entry/Intermediate) Provide Tier 1 and basic Tier 2 support for incident resolution
Perform routine system maintenance and monitoring
Follow established procedures and elevate complex issues
Level II (Mid-Level) Perform advanced troubleshooting and root cause analysis
Handle escalated incidents and provide detailed technical feedback
Optimize system performance and resource utilization
Support capacity planning and system improvements
Level III (Senior) Analyze and resolve complex, multi-system issues
Support system design, architecture, and integration efforts
Provide technical leadership and guidance to junior staff
Evaluate and implement system enhancements to improve reliability and performance
Understand and manage system interdependencies across enterprise environments
Benefits 11 paid holidays
Five weeks of PTO to start, accrued throughout the year
A variety of medical, dental, and vision plans
Company-paid life insurance and disability coverage options, including voluntary supplemental plans
Generous 401(k) employer match for all employees, along with the potential for an additional discretionary employer contribution
Flexible schedules designed to support both our employees and our clients
Hybrid work options available for eligible roles
Robust employee referral bonus program
Investment in your growth through training and tuition reimbursement
Equal Opportunity Employer GTSC-Talent Solutions is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.
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