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From the employer's careers site First seen 1 Nov 2026

Senior System/Network Administrator – Systems Integration

Leidos Laurel, MD senior full-time

Salary

$116,350 - $210,325 per year

Apply on Leidos

Description

Leidos is seeking a highly experienced Senior System/Network Administrator – Systems Integration to support the implementation, operation, troubleshooting, and maintenance of complex IT systems and infrastructure.

You will administer Linux, UNIX, and Windows environments; build and maintain virtual and storage environments; configure network components; resolve complex technical problems; and support reliable day-to-day infrastructure operations. At this level, you will also contribute to system and mission-architecture design, understand system-administration interdependencies within Service-Oriented Architecture (SOA) environments, and resolve complex integration issues spanning server hardware, applications, and software.

Responsibilities

Systems, Network & Infrastructure Administration

  • Manage daily configuration and operation of IT systems.
  • Support implementation, troubleshooting, and maintenance of IT systems and associated infrastructure.
  • Monitor and support day-to-day operations across client/server, storage, network, mobile, and related devices.
  • Configure and manage Linux, UNIX, Windows, and other applicable operating systems.
  • Install and load operating-system software, troubleshoot system issues, and maintain system integrity.
  • Configure network components and implement operating-system enhancements to improve reliability and performance.
  • Build, configure, monitor, and maintain virtual environments.
  • Build, configure, monitor, and maintain storage environments.
  • Optimize system operations and resource utilization and perform system-capacity analysis and planning.

Advanced Troubleshooting & User Support

  • Provide in-depth troubleshooting of IT systems.
  • Assist users in accessing and using IT systems.
  • Provide Tier 1 Help Desk and Tier 2 escalation support for problem identification, diagnosis, and resolution.
  • Support dispatch-system and hardware problems and remain engaged through resolution.
  • Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
  • Communicate system status, technical issues, and resolution progress to agency management and internal customers.

Systems Integration & Mission Architecture

  • Support the design of systems, mission architecture, and associated hardware.
  • Apply working knowledge of system-administration interdependencies within Service-Oriented Architecture (SOA) environments.
  • Analyze and resolve complex problems involving server hardware, applications, and software integration.

Requirements

  • Active TS/SCI with Polygraph, at time of Application.
  • Fifteen (15) years of System/Network Administration experience supporting programs and contracts of similar scope, type, and complexity.
  • Bachelor's degree in a technical discipline from an accredited college or university.
  • Five (5) additional years of System/Network Administration experience may be substituted for the bachelor's degree.

Benefits

  • Pay Range $116,350.00 - $210,325.00

Skills

Required

Apply on Leidos