Principal Linux Systems Administrator Jobs

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HPC System Administrator

Jacobs

Houston, Texas, USA

Full-time

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are exc

Senior Engineer, Systems Engineering

City National Bank

Atlanta, Georgia, USA

Full-time

Overview Job Purpose Intercontinental Exchange presents a unique opportunity for a full-time Senior Engineer to join a high-performance team of engineers responsible for the design, implementation, and support of mission-critical infrastructure. The Senior Engineer is responsible for ensuring high availability and performance across multiple latency-sensitive environments that support core ICE transaction businesses globally. This role involves collaborating with developers, operations teams, an

Systems Engineer

Robert Half

San Diego, California, USA

Full-time

Description We are looking for a highly skilled Systems Engineer to join our team in San Diego, California. This role requires expertise in designing, implementing, and managing complex enterprise infrastructures. The ideal candidate will have a proven ability to troubleshoot, optimize, and enhance system performance while collaborating with cross-functional teams. Responsibilities: Design and implement scalable enterprise storage networks to meet organizational needs. Develop and maintain auto

PostgreSQL Developer Need Local at Cincinnati, OH

GLOBAL VISSE INC

Cincinnati, Ohio, USA

Contract

PostgreSQL Developer Location: Cincinnati, OH - Need Local only Contract 12+ Months Job Title: PostgreSQL Developer Job Summary: We are seeking a highly skilled PostgreSQL Developer to join our team. The ideal candidate will be responsible for maintaining and optimizing our PostgreSQL databases, both on-premises and in the cloud (AWS RDS). This role requires a strong emphasis on query tuning and development, along with collaboration with development teams to ensure efficient and effective data

Director of Infrastructure Engineering (Direct Hire)

Brilliant Infotech Inc.

McKinney, Texas, USA

Full-time

Role Details Role: Director of Infrastructure Engineering Location: McKinney, TX Type of Employment: Direct Hire Required Experience: 15+ Years Job Description: We are seeking a seasoned infrastructure leader to drive the vision, buildout, and ongoing excellence of our multi-cloud and hybrid infrastructure. This is a hands-on leadership role perfect for someone who thrives at the intersection of strategy, technology, and team-building. If you're passionate about cutting-edge infrastructure, AI-

Cybersecurity DevOps Lead

Leidos

Huntsville, Alabama, USA

Full-time

The Leidos National Security Sector is seeking a highly skilled Cyber Defense Infrastructure Specialist to join our team in the Huntsville, AL area. This role will focus on providing critical data support to enhance and protect infrastructure and cybersecurity operations. The ideal candidate will be responsible for supporting the design, implementation, and optimization of data related components that underpin cyber defense initiatives. At Leidos, you'll join a team of innovators tackling some

UNIX/Wintel System Administrator

Celer Soft LLC

Plano, Texas, USA

Full-time, Part-time, Third Party, Contract

UNIX/Wintel System Administrator || Plano, TX || 10+ Years Main Skills, Technologies, and Methodologies: UNIX, Wintel, System Administration, Python, Perl, Shell Scripting, Operating Systems, Storage Management, Networking, TCP/IP, VLANs, UDP, Backup Procedures, Troubleshooting. About the Role: We are seeking a highly experienced UNIX/Wintel System Administrator to manage and maintain our critical systems. The ideal candidate will possess a strong background in both UNIX and Windows environments

Systems Engineer

CACI International, Inc.

Springfield, Virginia, USA

Full-time

Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: The TCS team is looking for a Systems Engineer to work on Enterprise Cross Domain Systems and associated projects. These systems provide reliable data transfers between domains for general users and programs. In this role, you will be responsible for the design, implementati

Senior Systems Engineer

SAIC

Aurora, Colorado, USA

Full-time

Job ID: 2505332 Location: AURORA, CO, US Date Posted: 2025-05-06 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is looking for a senior network engineer / systems administrator with background in configuring, maintaining, and troubleshooting networking equipment, servers and processing s

DevOps Engineer

Apolis

Vienna, Virginia, USA

Full-time, Contract

Job Title: DevOps Engineer Location: Hybrid - Vienna, VA Duration: 6+ Month Contract Industry: Banking / Financial ServicesJob Overview: We are seeking an experienced DevOps Engineer to design, implement, and optimize CI/CD pipelines and automation for distributed applications across WebSphere, Unix, Windows, and containerized platforms. The ideal candidate will drive automation across on-prem and cloud environments, mentor junior team members, and ensure compliance with industry best practices

Data Back UP/Compatability Test Engineer/Linux

Case Interactive

Colorado Springs, Colorado, USA

Full-time, Third Party

Job Detail: Senior Quality Assurance Engineer Role Overview: This individual will perform IT related quality assurance functions by testing the Company Linux software application and its Java Graphical User Interface regarding their working with various software backup applications (Dell Avamar, PPDM, Networker; Veritas NetBackup, IBM Spectrum, Commvault Simpana) and their agents. The backup applications are used to save and restore virtual machines (VMware and Microsoft Hypervisor), file system

Linux System Admin Jnr./Mid

NuAxis LLC

New Orleans, Louisiana, USA

Full-time

We are a federal IT company on a mission to make customer experience (CX) the center of every government solution. Technology is our Passion. People are our Purpose. Grow with us! As a growing business, every NuAxis Innovations employee impacts the success and direction of this company. We all share a true passion for technology and enjoy working together to develop solutions, share ideas, and exchange knowledge. At NuAxis Innovations, we celebrate diversity and the unique perspective each tea

Unified Communications Tier 2 / System Administrator

General Dynamics

Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Network Security, System Administration, Unified Communications Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Overview - Unified Communications Work as a team to resolve UC Tier 2 Help Desk issues. The individual rev

PRINCIPAL SYSTEMS ENGINEER - MANASSAS VA - TOP SECRET - RQ199250

ASD, Inc.

Manassas, Virginia, USA

Contract

Seeking a Principal Systems Engineer who will be a key part of a team that designs, builds, and supports an enterprise Government high value asset system using cutting edge products and tools. The position is located at a modern, data center facility located in Manassas, VA. The Systems Engineer will be responsible for all aspects of system operation and maintenance. The ideal candidate will have multiple years of experience with: Red Hat Linux Administration 8+ years of demonstrable experience

Cybersecurity Analyst

Solomons International

Atlanta, Georgia, USA

Contract, Third Party

*REQUIRED CERTIFICATIONS MUST BE UPLOADED* The Office of Information Technology is the office within DHS that provides computing, applications management, IT procurement, network and telecommunications services to all DHS divisions and offices. Responsibilities Proven experience in cybersecurity operations with hands-on expertise in monitoring and managing multiple security tools, including vulnerability scanning platforms such as Tenable (Nessus, Tenable.sc, or Tenable.io). Continuously monito

Principal Software Engineer-Storage Products

Dell Technologies

Round Rock, Texas, USA

Full-time

Principal Software Engineer-Storage Products The Software Engineering team delivers next-generation application enhancements and new products for a changing world. Working at the cutting edge, we design and develop software/firmware for platforms, peripherals, applications and diagnostics - all with the most advanced technologies, tools, software engineering methodologies and the collaboration of internal and external partners. Join us to do the best work of your career and make a profound soc

Red Hat Enterprise Linux (RHEL) Administrator - Security Clearance Required

Maximus

Maryland, USA

Full-time

General information Job Posting Title Red Hat Enterprise Linux (RHEL) Administrator Date Friday, April 4, 2025 City Annapolis Junction State MD Country United States Working time Full-time Description & Requirements Maximus is seeking an accomplished Red Hat Enterprise Linux Administrator to provide expertise in managing and optimizing assets for our federal client's critical operations. As a Red Hat Enterprise Linux Admin, you will be responsible for managing and maintaining the RHEL infrastruc

Red Hat Enterprise Linux (RHEL) Administrator - Secret Clearance Required

Maximus

Maryland, USA

Full-time

General information Job Posting Title Red Hat Enterprise Linux (RHEL) Administrator Date Friday, April 4, 2025 City Annapolis Junction State MD Country United States Working time Full-time Description & Requirements Maximus is seeking an accomplished Red Hat Enterprise Linux Administrator to provide expertise in managing and optimizing assets for our federal client's critical operations. As a Red Hat Enterprise Linux Admin, you will be responsible for managing and maintaining the RHEL infrastruc

Senior System Administrator- Remote!

American Systems Corporation

Remote

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities As an IT Systems Administrator you will have the opportunity to do the following:Work with a small team to maintain the health and compliance of several systems including Windows and Linux supporting web applica

Cybersecurity Analyst

Lucid Technologies

Atlanta, Georgia, USA

Contract, Third Party

Role/Title: Cybersecurity AnalystHybrid - Atlanta GAAgency Interview Type: Web Cam *REQUIRED CERTIFICATIONS MUST BE UPLOADED* ResponsibilitiesProven experience in cybersecurity operations with hands-on expertise in monitoring and managing multiple security tools, including vulnerability scanning platforms such as Tenable (Nessus, Tenable.sc, or Tenable.io).Continuously monitor security tools and systems (e.g., SIEM, IDS/IPS, CrowdStrike EDR, DLP, Tenable vulnerability scanners) to detect, inve