Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities. At Lumen, you'll work on infrastructure customers rely on today and build for what's next, where performance, security, and resilience matter. This is a high accountability environment where bold ideas drive r…

Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities. At Lumen, you'll work on infrastructure customers rely on today and build for what's next, where performance, security, and resilience matter. This is a high accountability environment where bold ideas drive r…

Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities. At Lumen, you'll work on infrastructure customers rely on today and build for what's next, where performance, security, and resilience matter. This is a high accountability environment where bold ideas drive r…

Cohere Technology Group LLC SE Linux Based MLS SME Linux Administrator Springfield, VA - Full Time Location: Springfield, VA Clearance: Must have active TS/SCI with CI Poly to apply Program Description: Cohere Technology provides Red Hat Enterprise Linux (RHEL) based High Performance Computing (HPC) services through the HPC lifecycle for computational requirements, architecture, acquisition, and operations to federal government customers. Our employees embrace automation, innovation, and are co…

Job ID: 2616382 Location: Princeton, NJ, US Date Posted: 2026-09-01 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: ORA_ON_SITE Description SAIC is recruiting for a Senior Linux Systems Administrator to join our program as a general technologist to support our NOAA GFDL program in Princeton, NJ serving the NOAA GFDL lab in…

Job Number: R0234433 Linux System Administrator, Senior The Opportunity: Install systems on dedicated infrastructure, ensure the infrastructure is functional and available, and update and patch critical systems. Provide customers with insight into their network through monitoring and performance management. Identify problem areas and opportunities for improvement in a mission-critical network. Accomplish work without considerable direction. Join us. The world can't wait. You Have: 5 years of ex…

We have partnered with a financial company in the Radnor, PA area to provide them with a Linux Administrator. Please review the below description and let us know if you are interested. Be part of a technology team responsible for managing a network of 600 Linux workstations and servers in an environment utilizing the latest hardware and software. Work closely with developers and quantitative researchers to maintain and optimize the real-time trading systems in a fast-paced and demanding environ…

Description Linux Administrator Install, configure, and maintain Linux operating systems both SuSE Linux Enterprise Server 12x (SLES) and Ubuntu Server 20x LTS. This role involves server-side operations and troubleshooting tasks that support business-critical and development activities. Essential Duties: The Linux Admin will perform the following key functions: Provide recommendations for system improvements, optimization, and deployment plans. Perform implementation, maintenance and troublesho…

Linux Administrator for a long-term consulting engagement. Duties : Participate in the management of Linux integration with a master data management platform. Manage core Linux Database, application, web and additional servers maintaining and updating all documentation. Create and maintain the operating system hardware and software configuration database/library of all documentation. Investigate and resolve problems involving complex system integration. Skills/Experience : 8-10 years of experie…

LT Consulting is seeking a Linux Administrator who will assist in the installation, configuration and deployment of a COTS tool implementation. Clearance Required: TS/SCI w/ Polygraph Responsibilities: Linux Systems Engineering / Administration (SA) working with virtual servers and associated technologies. Install and administer PeopleSoft applications and updates. Identify and implement application and server-level patches. Analyze, troubleshoot, and optimize system performance. Design, docume…

Company Overview: At ValidaTek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-talent employees, ValidaTek puts people first, empowering them to exceed expectations and transform government organizations. Our success starts and ends with our people, so we built a company where great people can do great things, with the resources and autonomy to make decisions that transform organ…

San Antonio, Texas Top Secret w/ SCI On-site only Information Technology Overview GovCIO is seeking a self-motivated Linux Administrator to support Linux servers and services for the 616th Operations Center (616 OC). The administrator will perform routine sustainment and troubleshooting independently, follow approved procedures for security and change control, and coordinate complex changes and incidents with senior engineers and mission partners. The environment includes Red Hat Enterprise Lin…

Description The organization is looking for an experienced Systems Administrator with strong Linux, virtualization, and storage experience to support a primarily on prem infrastructure environment. This role maintains the reliability, availability, and security of Windows, Linux, virtual machines, and core infrastructure that supports 24/7 operations. The environment includes modern Windows Server builds, RedHat Linux, and a large VMware footprint. ________________________________________ Key R…

About Level Up Level Up, LLC, a wholly-owned subsidiary of AVIAN, represents a fusion of innovation, reliability, and top-tier cyber security and IT solutions. As a Virginia-based small business with over 150 years of collective experience, we pride ourselves on providing industry-leading expertise, big data analytics, and all-source research and analysis. Our technical capabilities directly bolster our customers' objectives, from mission centers to forward-deployed operations. In 2021, we join…

About Resolve Tech Solutions: At Resolve Tech Solutions, we deliver innovative IT services and infrastructure support that power business operations across industries. We pride ourselves on creating scalable, secure, and high-performing environments for our clients, and we’re looking for passionate professionals to join our growing team. Position Overview: We are seeking a skilled and proactive Linux/Windows System Administrator to manage, maintain, and enhance both Linux and Windows server env…

AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Engineering & Analysis, Test & Evaluation, and Training. Maintain DoW STIG Compliant images Provide Tier II engineering, development, testing, and production environment support Responsible for full Life Cycle support of AWS GovCloud and On-Premised hosted Systems/Applications. Review, evaluate, and fine-tunes system pe…

Title - Sr. Systems Engineer - Linux Location - San Diego, CA Mode of work : Onsite We are seeking an experienced Senior Systems Engineer to join our team. You will be responsible for managing and automating enterprise Linux/Unix platforms across VMware-based on-prem and hybrid environments. Ensures high availability, security compliance, and operational stability of mission-critical banking applications. You will also act as an L2/L3 System Engineer resource, working across IT Infrastructure t…

Junior Linux System Administrator (Recruiting for Axellio) Axellio ( www.Axellio.com ), headquartered in Colorado Springs, Colorado, is an innovator in advanced high-speed streaming data capture, storage, and distribution, high-performance networking, RF technologies, and innovative cyber solutions. We design and deliver cutting-edge platforms that enable customers to process, retain, distribute, analyze, and move massive amounts of data at the edge—where speed, reliability, and performance mat…

What company will I be working for? You will be working for a national security services firm, providing cutting-edge services across DoD and other agencies. At Inflow, we believe in making it matter for every employee, every customer, and every mission we support. That means that we put employees first, providing both innovative benefits and great technology. Check out https://inflow-ns.com/inflowees to learn more about what it’s like to be an Inflowee. Who will I be working with? In support o…

Requirements: * Must have the ability to provide support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems, including ongoing operational support. * Must possess the ability to manage daily configuration and operation activities for IT systems while optimizing system operations, resource utilization, and performing system capacity analysis and planning. * Must be capable of configuring and managing Linux operating systems, including loading and inst…