Jobs in United States

Linux System Administrator in United States

217 active opportunities · Updated October 2026

Explore current linux system administrator jobs across United States. Filter by work mode, employment type, experience, department, date posted and distance.

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📍 Alexandria, United States
✓ High-confidence listingExact matchCompany trend +500%
Quick readExact title match for your search

Linux System Administrator Alexandria, VA Secret clearance or higher The Test and Training Enabling Architecture (TENA) program at Leidos is looking to add a Linux System Administrator . Our mission is to develop tools for the United States Department of Defense test and training communities, to increase the speed of the development cycle, to get capabilities to the warfighter more rapidly. The Linux System Administrator will work within a team engineers, developers and system administrators, adding new capabilities to our enclaves, as well as ensuring the existing systems are secure and performing as intended. This position is required to work on-site in our Alexandria, VA office. Primary Responsibilities: Provide support for installing and maintaining Linux servers. Provide technical leadership for migrating on premise infrastructure to hybrid cloud solution. Provide support for troubleshooting from OS to application-level issues. Manage networking equipment including switches, routers and firewalls. Manage configuration and maintenance of core enclave infrastructure services including DCHP, DNS, e-mail, Apache Web Servers, Tomcat application servers, Atlassian applications, MariaDB database servers. Configure and monitor security tools required for DoD networks. Participate and contribute to design discussions related to improving the capabilities, performance and security posture of new and existing services. Basic Qualifications: US Citizen with at least an active Secret clearance. Bachelor’s degree with 4+ years of experience or a Master’s degree with 2+ years of experience. Additional experience may be considered in lieu of a degree. 4+ years of experience providing System Administration to DoD IT systems. DoD 8570 IAT level I

B
📍 Berkeley, United States
✓ High-confidence listingCompany trend +515.8%
Quick readStrong listing-quality and freshness signals

Associate Systems Engineering Support Analyst Company: The Boeing Company Boeing Defense, Space & Security (BDS has an exciting opportunity for an Associate Systems Engineering Analyst (Level 2) for Flight Simulation Labs , located in Berkeley, MO . The Flight Simulation Labs organization has expertise supporting marketing, design, development, integration, test and training objectives for Boeing military aircraft. As a Systems Engineering Analyst, you will be responsible for researching, analyzing, and compiling technical data to optimize system performance throughout the program lifecycle. You will apply systems engineering processes, methodologies, and tools to develop and refine system architectures, functional requirements, and product designs for programs such as T-7, F-15, F-18, and MQ-25. Position Responsibilities Apply systems engineering methodologies to design, develop, and maintain systems, tools, and new product solutions Serves as system administrator for Engineering tools in the Flight Simulation Labs organization Identifies opportunities and implements data analysis and automation including dashboard and reporting for the organization Derives and develops basic architecture, functional requirements, and product designs, ensuring alignment with project objectives Collaborates with cross functional project teams including engineering, IT, cyber, networking, software, customers, and suppliers to achieve organizational goals Engages in continuous improvement initiatives for all Flight Simulation Labs processes and tools This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government re

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📍 Austin, Texas, United States· Full-time
✓ High-confidence listing
Quick readStrong listing-quality and freshness signals

About us Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone. Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives, spanning AI research specialists, silicon designers, software engineers and systems architects. Job Summary We are looking for an experienced Principal Engineer to join our System Management team and help lead the development of critical interfaces used by internal and external customers to manage system state. You will provide technical leadership within assigned areas of System Management, guide architecture and implementation choices, mentor engineers and translate broader technical direction into effective execution. This is a hands-on engineering role for someone who can lead complex technical work, improve reliability and operational readiness, and collaborate effectively across multiple engineering disciplines. The Team The System Management team sits within the Software Platform group and helps build Graphcore products into large-scale AI solutions for our customers. The team is responsible for developing the interfaces between hardware, AI software and frameworks, as well as providing interfaces for public and private cloud environments. This includes system management capabilities that abstract complex hardware administration and enable reliable deployment and operation at scale. As one of the first teams to work with new hardware and software, we regularly solve complex system-level problems

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📍 United States· Full-time
✓ High-confidence listingCompany trend -93.7%

From $90K/yr

Quick readStrong listing-quality and freshness signals

MongoDB Atlas is the premier multi-cloud database-as-a-service built and operated by the makers of MongoDB. The Cloud Operations Engineering team at MongoDB is a worldwide team responsible for the consistent operational success of every MongoDB Atlas customer. As a Cloud Operations Engineer, you will help ensure the success of our Atlas customers, whether they are early startups or large multinational companies, cloud-native or just getting started with a digital transformation to the cloud. You are excited about the core mission of MongoDB, and the opportunity to join the team responsible for operating Atlas, the fastest-growing multi-cloud database-as-a-service in the world. You are prepared to be one of the founding members of a 24/7/365 global cloud operations team. Cloud Operations Engineers will be responsible for day-to-day duties such as creating and monitoring systems alert dashboards, reviewing critical event and system logs, accessing customer instances that underpin their production databases and performing server administration duties including performance troubleshooting. Applicants must be critical thinkers who are quick to detect, resolve, or escalate issues that are sometimes broad in scope and difficult to trace. FedRamp engineers are specifically tasked with supporting our government customers in our FedRamp Atlas environment. This includes SLED (State and Local Government and Education), various federal agencies, and other customers that leverage FedRamp. At MongoDB you will grow your career and skills, wear multiple hats, and be part of an operations team that works at the frontier of Cloud services and database systems. This role will be based remotely in Colorado. Responsibilities Successfully coordinate with a global team of Cloud Operations Engineers who are tasked with ensuring our uptime guarantees to our Atlas customer base Help scale the worldwide Cloud Operations Engineering team with the strategic implementation of new processes and to

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📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -79.2%

About the Team This team builds and operates the systems that enable OpenAI researchers to run reliable, scalable, and efficient research workflows. The team sits close to research and works across infrastructure, systems, and automation to make sure researchers have the tools and environments they need to move quickly. The work spans software engineering, infrastructure, systems administration, cluster operations, and reliability engineering. As OpenAI’s infrastructure evolves from bespoke bare-metal systems toward more standard, scalable platforms, the team needs engineers who can understand how systems work end-to-end and build the right abstractions without reinventing the wheel. About the Role As a Software Engineer on this team, you will build and operate the infrastructure that supports frontier research and critical research-facing systems. You will work on systems that sit close to the metal, but the role is not limited to classic operations or sysadmin work. We are looking for someone who can reason about networking, bootstrapping, Kubernetes, scalability, automation, and reliability - while also writing software to make these systems better over time. This role is a strong fit for an independent, high-ownership engineer who enjoys reliability-heavy infrastructure work but still wants to build. You do not need to come in as a kernel expert or highly algorithmic optimization engineer, but you should be deeply curious about infrastructure, comfortable debugging complex systems, and excited to support researchers doing novel work. We expect you to: Build and operate reliable infrastructure for research workloads and research-facing services. Support and improve systems across data infrastructure, processing, crawl and ingest, caching, search, observability, and clusterwide services. Improve cluster bootstrapping, provisioning, automation, and deployment workflows. Debug issues across networking, compute, storage, orchestration, and service reliability layers.

AWSKubernetesCI/CDGit
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📍 Austin, Texas, United States· Full-time
✓ High-confidence listing
Quick readStrong listing-quality and freshness signals

About Graphcore Graphcore is a global leader in artificial intelligence computing systems. We design advanced semiconductors and data center hardware that deliver the specialized processing power needed to advance AI while improving the efficiency required for broad adoption. As part of SoftBank Group, Graphcore belongs to a family of companies developing some of the world's most transformative technologies. Our AI Engineering Campus in Austin plays an important role in building the future of AI computing. The Opportunity As Technical Services Director, you will lead the teams that operate and evolve Graphcore's engineering labs, high-performance computing (HPC) platforms, and data center environments globally. You will be accountable for reliable, secure, cost-effective infrastructure that supports demanding engineering, AI, silicon-development, and validation workloads. This role combines people leadership, infrastructure strategy, operational excellence, capacity and financial planning, procurement, and program delivery. You will partner with Engineering, Information Technology, Security, Finance, Facilities, Supply Chain, customers, and external suppliers. The position is based onsite in Austin and requires travel to company facilities, data centers, and supplier locations, including international travel. What You'll Do Lead, recruit, mentor, and develop the systems administration, lab operations, and technical services teams responsible for the facility supporting global Engineering and Research and Development. Own the reliability, efficiency, protection, safety, supportability, and continuous improvement of engineering labs, HPC systems, and infrastructure facilities. Establish service levels, operating standards, escalation paths, performance measures, monitoring, observability, automation, ticketing, and configuration-management practices. Translate engineering and customer requirements into infrastructure roadmaps, capacity p

LinuxAIGoExcel
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📍 Boston, Massachusetts, United States· Full-time
✓ High-confidence listingCompany trend -83.5%

From $80K/yr

Quick readStrong listing-quality and freshness signals

Datadog Sales Engineers help qualify and close opportunities with customers and partners. You will provide technical expertise through sales presentations, product demonstrations, and supporting technical evaluations (POCs). Sales Engineers have a voice with the product team to help prioritize features based on input from customers, competitors, and partners. Additionally, you will work with various teams to resolve customer concerns, escalate bug issues, and serve as an ambassador for our brand. If you want to join a friendly, passionate team with limitless potential, we’d love to meet you! At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Partner with the sales team to articulate the overall Datadog value proposition, vision and strategy to customers Continually learn new technology to build competitive knowledge, technical skill, and credibility Deliver product and technical presentations with potential clients Have a direct line of communication with the product team to collaborate on feature requests Help clients onboard the product and assist when they run into roadblocks. Think creatively about a wide variety of technical challenges during the pre-sales life cycle Who You Are: Knowledgeable and experienced with DevOps monitoring or architecture tools. Comfortable and confident in delivering technical presentations/demos to either external customers or internal teams Able to think creatively about a wide variety of challenges. You're going to find new things every day Previously experienced in systems administrations: Windows or Linux Able to sit up to 4 hours, traveling to and from client sites Able to travel via auto, train or air up to 25% of the time Datadog values people from all walks of life. We understand not everyone

LinuxAIGoRust
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📍 Denver, Colorado, United States· Full-time
✓ High-confidence listingCompany trend -83.5%

From $80K/yr

Quick readStrong listing-quality and freshness signals

Datadog Sales Engineers help qualify and close opportunities with customers and partners. You will provide technical expertise through sales presentations, product demonstrations, and supporting technical evaluations (POCs). Sales Engineers have a voice with the product team to help prioritize features based on input from customers, competitors, and partners. Additionally, you will work with various teams to resolve customer concerns, escalate bug issues, and serve as an ambassador for our brand. If you want to join a friendly, passionate team with limitless potential, we’d love to meet you! At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Partner with the sales team to articulate the overall Datadog value proposition, vision and strategy to customers Continually learn new technology to build competitive knowledge, technical skill, and credibility Deliver product and technical presentations with potential clients Have a direct line of communication with the product team to collaborate on feature requests Help clients onboard the product and assist when they run into roadblocks. Think creatively about a wide variety of technical challenges during the pre-sales life cycle Who You Are: Knowledgeable and experienced with DevOps monitoring or architecture tools. Comfortable and confident in delivering technical presentations/demos to either external customers or internal teams Able to think creatively about a wide variety of challenges. You're going to find new things every day Previously experienced in systems administrations: Windows or Linux Able to sit up to 4 hours, traveling to and from client sites Able to travel via auto, train or air up to 25% of the time Datadog values people from all walks of life. We understand not everyone

LinuxAIGoRust
B
📍 Berkeley, United States
✓ High-confidence listingCompany trend +515.8%
Quick readStrong listing-quality and freshness signals

Experienced Engineering Technical Specialist Company: The Boeing Company Boeing Defense, Space & Security (BDS) is seeking Experienced Engineering Technical Specialists (Level 3) to join the team in Berkeley, MO. This position supports Risk Managed Framework compliance across multiple avionics test labs as well as the administration of embedded PCs and host PCs on avionics test benches. The Lab Infrastructure team is responsible for the design, modification, and troubleshooting of all test benches used in the avionics' lab to support systems integration testing on the F-15. Position Responsibilities Build and configure embedded PCs and host PCs on test benches Support RHEL 9 Installation, configuration, patching and maintenance of Linux server environments Support containerization Provide active directory management and file server management Troubleshoot user problems related to hardware, software, or processes Conduct monthly OS patching and anti-virus updates Create user accounts and reset passwords Run backups on workstations and servers Maintain compliance with Risk Managed Framework and NISPOM rules Keep facility signage up to date Maintain lab access list Travel may be required up to 10% of the time; domestically and/or internationally depending on business needs. This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active) Basic Qualifications (Required Skills/Experience) <ul

LinuxRecruitment
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📍 San Francisco, CA, United States· Full-time
✓ High-confidence listing

$960K – $1.4M/yr

Quick readStrong listing-quality and freshness signals

Position Overview As SingleStore’s IT Operations Engineer, you will help shape the IT toolset used by our end users. This is an active, hands-on position responsible for the planning, design, development, and Tier 1 support of several key technical areas at the SingleStore IT team, including end-user support, client engineering, executive support, and infrastructure application support. This is an incredible opportunity for someone to build upon their technical strengths and be a part of IT at SingleStore team . Roles and Responsibilities: Administering a wide variety of SaaS applications. Some main applications that need to be supported are OKTA (+ Workflows), Google Workspace, Slack, and Atlassian tools (JIRA + Confluence), MDM administration. Keep up to date with new features and new releases in these applications to identify opportunities for better automation or features that could be useful for our environment. Seize opportunities across the IT Operations team to eliminate manual work through tooling, integrations, and automation of IT workflows. Respond to tickets and execute new hire onboarding and user separation processes. Support members of the team with troubleshooting and resolution of complex issues. Design, architect, implement and maintain systems and solutions for various IT-related topics, including but not limited to staff computer hardware, operating systems, software applications, networking, videoconferencing, and printers. Partner and collaborate with all business units to help them evaluate hardware and software solutions. Able to communicate effectively and concisely with the entire company. Analyze existing processes, suggest and make improvements, and implement business processes where none exists. A desire to learn and expand your horizons; take on new challenges as the business scales Required Skills and Experience: Minimum 2 years of relevant experience Prior experience in implementing and administering Google Workspac

PythonSQLAWSGit
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📍 New York, new york, United States· Full-time
✓ Quality checkedCompany trend -63%

About Us: AI needs a new infrastructure layer. We're building it at Modal. Every era of computing brought new workloads that previous infrastructure couldn't support: mainframes, databases, and the cloud. Each time, the company that rebuilt the layer underneath defined the decade. AI is no different, except it touches everything instead of one slice, and the window to build the layer underneath it is open right now. Our customers include category-defining companies like Lovable , Ramp , Cognition, DoorDash, and Suno. They rely on Modal for instant GPU access, sub-second container starts, and native storage, so it's simple to serve low-latency inference, fine-tune models, and access production-ready sandboxes at scale. We recently raised a $355M Series C at a $4.65B valuation, led by General Catalyst and Redpoint Ventures. We've crossed $300M+ ARR and grown fivefold since September. Our team includes creators of popular open-source projects (e.g., Seaborn , Luig i ), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience. The Role: We are looking for strong engineers with experience and interest in designing, building, and maintaining the novel, high-performance systems that make up our serverless platform. Requirements: 5+ years of experience writing high-quality production code Experience building high-performance distributed systems at a large scale (the more battle scars, the better) Strong cloud skills Strong knowledge of low-level operating system foundations (Linux kernel, file systems, containers, etc.) Experience with performance engineering (tell us a story of when you shaved off a few milliseconds!) Ability to work in-person in our NYC or SF office. Prior experience with Rust is nice to have, but not required. Ability to participate in on-call rotation and respond to production incidents.

LinuxRestAIGo
M
📍 New York, new york, United States· Full-time
✓ Quality checkedCompany trend -63%

About Us: AI needs a new infrastructure layer. We're building it at Modal. Every era of computing brought new workloads that previous infrastructure couldn't support: mainframes, databases, and the cloud. Each time, the company that rebuilt the layer underneath defined the decade. AI is no different, except it touches everything instead of one slice, and the window to build the layer underneath it is open right now. Our customers include category-defining companies like Lovable , Ramp , Cognition, DoorDash, and Suno. They rely on Modal for instant GPU access, sub-second container starts, and native storage, so it's simple to serve low-latency inference, fine-tune models, and access production-ready sandboxes at scale. We recently raised a $355M Series C at a $4.65B valuation, led by General Catalyst and Redpoint Ventures. We've crossed $300M+ ARR and grown fivefold since September. Our team includes creators of popular open-source projects (e.g., Seaborn , Luig i ), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience. The Role: We are looking for strong engineers with experience in making ML systems performant at scale. If you are interested in contributing to open-source projects and Modal’s container runtime to push language and diffusion models towards higher throughput and lower latency, we’d love to hear from you! Requirements: 5+ years of experience writing high-quality, high-performance code. Experience working with torch, high-level ML frameworks, and inference engines (vLLM or TensorRT). Familiarity with Nvidia GPU architecture and CUDA. Experience with ML performance engineering (tell us a story about boosting GPU performance — debugging SM occupancy issues, rewriting an algorithm to be compute-bound, eliminating host overhead, etc). Nice-to-have: familiarity with low-level operating system foundations (Linux kernel, file systems, containers, etc).

LinuxRestAIGo
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📍 Santa Clara, United States
✓ High-confidence listingCompany trend -8%
Quick readStrong listing-quality and freshness signals

NVIDIA's invention of the GPU in 1999 sparked the growth of the PC gaming market, redefined modern computer graphics, and revolutionized parallel computing. More recently, GPU deep learning ignited modern AI — the next era of computing — with the GPU acting as the brain of computers, robots, and self-driving cars that can perceive and understand the world. Today, we are increasingly known as “the AI computing company”. We are looking to grow our company, and grow our teams with the smartest people in the world. What you’ll be doing: You will work with ground breaking technologies for the Tegra SoC and various NVIDIA embedded platforms Implement power and thermal management software features in Linux Kernel and user space Collaborate with power architects, hardware and software engineers on platform power estimation and optimization Optimize the software stack to improve performance, efficiency, and responsiveness for edge AI and robotics use cases. Focus on improving compute and memory utilization, reducing latency and power consumption, and tuning system-level performance to deliver reliable and scalable AI workloads across demanding real-world edge environments. What we need to see: MS in CS, CE, EE, Systems Engineering or related software/hardware engineering major, or equivalent experience 8&#43; years of software development experience with a significant focus on Linux Excellent C programming/debugging skills within Linux kernel and user space software Background with working on embedded systems and ARM processor specific System-level debugging experience and problem-solving skills Excellent communication skills Ways to stand out from the crowd: Understanding of the Linux power and thermal management features (schedule

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📍 Tinker Afb, OK, United States
✓ High-confidence listingCompany trend +515.8%
Quick readStrong listing-quality and freshness signals

Electronic & Electrical System Design Engineer (Associate or Mid-Level) Company: The Boeing Company The Boeing Test and Evaluation (BT&E) organization is seeking an Electronic & Electrical System Design Engineer for the B-1 Bomber Avionics Integrated Support Facility (AISF) at Tinker Air Force Base, OK . The AISF Laboratory Operations Team is responsible for maintaining, configuring, and upgrading avionics hardware and special test equipment used to support development and testing of operational flight software. Other areas of responsibility include engineering and hardware sustainment that extends to multiple air force bases and labs across the United States. The AISF lab team plays a key role supporting the B-1 platform requirements in areas of avionics and weapons integration, by making changes in the lab first to ensure the software and hardware design are ready prior to ground and flight test. This engineering position is part of a small highly collaborative design team working multiple lab changes to satisfy customer requirements and ultimately the airmen who use the weapon system. This position is part of the Laboratory Operations team, comprising engineers, technicians, and cybersecurity professionals. BT&E is currently hiring for a broad range of experience levels including Associate or Mid-Level Electronic & Electrical System Design Engineers. Travel: This position will require occasional domestic travel up to 10% to support program objectives. Position Responsibilities: Design lab changes for new test articles and integration that support platform upgrades Design lab changes to existing systems to reso

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