Job specifications are intended to present a descriptive list of the range of duties performed by employees. Specifications are not intended to reflect all duties performed within the job. SUMMARY: The Senior Systems Administrator shall demonstrate experience in systems administration in the following operating systems: UNIX, Linux, or Windows. The specialized experience includes Linux system administration of Redhat and security setup and updates (IAVA's); UNIX system administration of Solaris…

At Bloom Energy, our vision for a world powered by clean, reliable, and affordable energy is more than just a dream—we’re making it reality. For over two decades, we’ve been at the forefront of the global energy transition, pioneering solutions that empower critical industries to thrive in a rapidly digitizing, energy-intensive world. From revolutionizing power for AI-driven data centers to ensuring resilience for hospitals, electric grids, manufacturing facilities, and utilities, our solid oxi…

The Systems Integrator provides senior-level systems engineering and integration support for complex simulation systems, with responsibility for coordinating, designing, integrating, testing, and sustaining hardware and software components within a unified simulation environment. This position combines advanced systems engineering skills with a strong software development background to ensure simulation systems, applications, interfaces, data flows, and supporting infrastructure operate togethe…

Only applicants with an Active TS/SCI and poly need apply. Azusa Solutions is seeking a System Administrator to join our team of talented consultants. This is an exciting opportunity to join a growing company comprised of highly qualified, highly impactful, and multi-talented individuals. The ideal candidate will have strong experience managing enterprise Solaris and Linux environments and supporting storage, backup, security, and patching systems. This role requires hands-on expertise with Sol…

System Administrator – Linux / HPC Infrastructure Locations: Annapolis Junction, MD and Bluffdale, UT Work Arrangement: 100% On-site Employment Type: Full-time Salary Range: $100,000–$200,000 annually, subject to approval Position Overview: We are seeking experienced System Administrators to support complex Linux-based infrastructure and mission-critical computing environments. Opportunities are available for professionals specializing in Linux platform administration, networking, storage, and …

Date Posted: 2026-09-10 Country: United States of America Location: US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: TS/SCI with CI Poly - Current Security Clearance Status: Active and ex…

Amentum is seeking a Systems Administrator (Linux) for a position on Kauai, HI. Provides Red Hat Enterprise Linux (RHEL) system administration for all Clients and Servers connected to the Pacific Missile Range Facility (PMRF) classified and unclassified networks. Deploys Cyber Security mandated system upgrades, system patches, and system security lockdown requirements. Performs system wide troubleshooting and problem resolution in a live mission environment. Responsibilities Administer and main…

Job Title: System Administrator (Linux) Location: Huntsville, AL Description: Crossflow Technologies is seeking applicants for an experienced Systems Administrator providing direct-user support in both Linux and Windows environments. The selected applicant will provide full systems administration and user support to local and remote users performing business administration and advanced software development environments. The selected candidate will manage users, groups and accounts; administer t…

We solve difficult business, IT, and analytic problems by addressing the whole problem – not just the symptoms – using interdisciplinary approaches that are both practical and innovative. We provide fresh alternatives to ordinary, mainstream consulting firms through small, highly skilled, and hand-picked teams that can meet clients' needs in any industry. Our broad interdisciplinary understanding allows us to provide the right solution, even if it is from outside the industry or traditionally d…

Seeking a Systems Administrator to support a high-power defense technology company in a primarily Linux-focused infrastructure environment. This role provides Level 2 support across Linux and Windows systems , manages servers, virtualization, networking, and overall IT infrastructure, while also contributing heavily to cybersecurity operations . The ideal candidate has strong Linux administration experience, networking knowledge, and an interest in security, vulnerability management, and system…

SciTec, a Firefly Aerospace Company, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For the past forty-five plus years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance; space domain awareness; and aircraft sur…

Amentum is seeking a Systems Administrator 2 (Linux) PART-TIME for a position on Kauai, HI. Provides Red Hat Enterprise Linux (RHEL) system administration for all Clients and Servers connected to the Pacific Missile Range Facility (PMRF) classified and unclassified networks. Deploys Cyber Security mandated system upgrades, system patches, and system security lockdown requirements. Performs system wide troubleshooting and problem resolution in a live mission environment. Responsibilities Admini…

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …

Constellation Energy seeks a Sr. Operational Technology Systems Administrator to manage and secure OT systems that support energy generation and delivery. In this role you will administer critical control systems, SCADA and related networks, implement cybersecurity and patching, and ensure high availability and compliance in a regulated utility environment. You’ll partner with operations, engineering, and security teams to design resilient solutions, respond to incidents, and support upgrades. …