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Role description

Senior Systems Administrator [Full Scope Polygraph]

Modern Technology Solutions Inc logoModern Technology Solutions, Inc. (MTSI)
TypeFull-time
WorkplaceOn-site
SenioritySenior
Salary$125,000–$180,000
LocationAnnapolis Junction, MD
Posted9/21/2026
Other

Modern Technology Solutions, Inc. (MTSI)
is hiring a
Senior Systems Administrator
in
Annapolis Junction, Maryland.
Qualified candidates must be U.S. citizens with a
TS/SCI clearance and Full Scope Polygraph.
Responsibilities

  • Provide support for implementation, troubleshooting and maintenance of IT systems.
  • Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
  • Manage the daily activities of configuration and operation of IT systems.
  • Provide assistance to users in accessing and using IT systems.
  • Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
  • Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc.
  • Provide support for the escalation and communication of status to agency management and internal customers.
  • Optimize system operations and resource utilization and perform system capacity analysis and planning.
  • Provide in-depth experience in trouble-shooting IT systems.
  • Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
  • Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
  • Configure and manage UNIX and Windows (or other applicable) operating systems and install/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
  • Support the design of systems, mission architecture and associated hardware
  • Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA).
  • Analyze and resolve complex problems associated with server hardware, applications and software integration

Qualifications Required

  • Fifteen (15) years experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity.

Education Requirements

  • Bachelor’s degree in technical discipline from an accredited college or university. Five (5) years of additional Systems Administration experience may be substituted for a bachelor’s degree.

Clearance Requirements

  • TS/SCI clearance with Full Scope Polygraph.

The pay range for this position is $125,000 to $180,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled.

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Company info

Modern Technology Solutions Inc logo

Modern Technology Solutions Inc

MTSI is hiring and adding new positions on a regular basis across the country!

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of global importance in the critical mission areas of missile defense, cyber security, intelligence, unmanned/autonomous systems, aviation, space, and homeland security. The MTSI mission is to make important and lasting contributions to the nation's defense and security by providing leadership and best- value solutions to solve America's most technically challenging strategic problems. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide. For more information about MTSI, please visit www.mtsi-va.com. For current MTSI job openings, please visit www.mtsi-va.com/careers.

Private company
Founded1993
HQ
Unlock human wisdom
ThesisTermsPrivacy
Alexandria, US
Size1001-5000 employees
IndustrySpace Research and Technology
Tech stackbootstrap, amazon-sqs, bridge, serverless, power-bi, snort, elasticsearch, microsoft-windows-os, ml-flow, solidworks-pdm

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