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# Senior Systems Administrator (GA-2/3)

- **Company:** Legato, LLC
- **Location:** United States
- **Experience:** Expert
- **Salary:** $190,000.0 - $240,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Amazon Web Services, Application Integration Architecture, Systems Engineering, Cloud Computing, Configuration Management, Software Documentation, Cyber Security, Computer Networks, Cursor, GeoServer, Network Troubleshooting, Lightweight Directory Access Protocols (LDAP), Link 16, Linux System Administration, Network Architecture, Network Administration, Service Pack, Software Engineering, Systems Architecture, Systems Integration, Software Vulnerability Management, Enterprise Software Applications, Okta, Apache Nifi, Hardware Infrastructure, Network Server
- **Published:** October 25, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=8db0ab1a4817f9e1

## About the Role

ten (10) years of experience as a Systems Administrator supporting complex enterprise systems and technical environments.

 * Strong Linux system administration and engineering experience.
 * Working knowledge of Windows operating systems.
 * Experience analyzing and resolving complex server hardware, software, and application integration issues.
 * Experience performing system hardening, security patching, configuration management, and system maintenance.
 * Experience diagnosing hardware and software failures, troubleshooting system performance issues, and replacing defective components.
 * Experience administering and maintaining computer networks, servers, and supporting infrastructure.
 * Experience supporting software development, system integration, verification, and testing activities.
 * Experience gathering and analyzing user requirements to identify and resolve system and network issues.
 * Experience developing and maintaining system documentation, technical procedures, and configuration records.
 * Ability to collaborate with multidisciplinary engineering teams and communicate technical information effectively.
 * Willingness to participate in a weekly rotating after-hours on-call schedule.

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

Desired Qualifications

 * Experience with cloud technologies, particularly Amazon Web Services (AWS).
 * Experience with Keycloak, LDAP, GeoServer, and Apache NiFi.
 * Knowledge of tactical data links and related technologies, including Link 16, Integrated Broadcast Service (IBS), and Cursor-on-Target (CoT).
 * Experience supporting Information Assurance activities, including system security, compliance, and vulnerability remediation.
 * Experience administering and supporting laboratory environments, specialized technical systems, and associated network infrastructure.
 * Strong analytical and problem-solving skills, with the ability to independently evaluate technical challenges and implement effective solutions.
 * Ability to work collaboratively across geographically distributed engineering and development teams.
 * Experience providing technical support, troubleshooting, and training to system users and engineering personnel.

## Description

The Senior Systems Administrator will support the administration, maintenance, security, and optimization of complex enterprise systems and network infrastructure. This role focuses on maintaining reliable and secure computing environments, resolving advanced technical issues, and supporting software development, system integration, and operational activities across multiple technical teams., The Senior Systems Administrator will analyze and resolve complex issues involving server hardware, operating systems, applications, and software integration. The Administrator will perform system hardening, patching, configuration management, and ongoing maintenance to ensure systems remain secure, reliable, and operational. Responsibilities also include administering Linux-based environments, supporting Windows operating systems, diagnosing hardware and software failures, and implementing solutions to improve system performance and availability.

This individual will also collaborate with software developers, systems engineers, testers, and other technical teams to support software development, system integration, verification, and testing activities. The position involves gathering and analyzing user requirements, evaluating system and network performance, maintaining system architecture and technical documentation, and ensuring the quality and integrity of technical deliverables. The successful candidate will provide advanced troubleshooting and technical support, assist with network administration, and participate in a rotating after-hours on-call schedule to support critical operational needs.