Senior Systems Administrator Jobs

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Linux/Windows Senior Systems Administrator

Lockheed Martin Corporation

San Diego, California, USA

Full-time

Job Description WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreakin

Senior Systems Administrator

Iridium Satellite LLC

Grand Forks Air Force Base, North Dakota, USA

Full-time

Company Overview Iridium is an award-winning and innovative satellite communications company with bragging rights to the only network that offers voice and data connectivity anywhere in the world. For over 20 years, Iridium's unique network and services have supported critical communications needs for individuals, businesses, and the evolving Internet of Things. At Iridium, we understand the importance of staying connected and the limitations of traditional communications networks. People across

Senior Systems Administrator (Linux/Windows)

Ledgent Technology

Fremont, California, USA

Full-time

We are seeking a highly skilled Senior System Administrator to join our client's enterprise IT team, which is onsite in Fremont, CA. We are unable to consider 3rd party candidates. In this role, you will be responsible for maintaining, securing, and optimizing mission-critical systems and infrastructure across a complex, multi-site environment. You will take initiatives to improve performance, reliability, scalability, and security, including cloud services, servers, storage, virtualization, s

Senior Systems Administrator

Iridium Satellite LLC

Redstone Arsenal, Alabama, USA

Full-time

Company Overview Iridium is an award-winning and innovative satellite communications company with bragging rights to the only network that offers voice and data connectivity anywhere in the world. For over 20 years, Iridium's unique network and services have supported critical communications needs for individuals, businesses, and the evolving Internet of Things. At Iridium, we understand the importance of staying connected and the limitations of traditional communications networks. People acros

Senior Systems Administrator - Clearance Required

Lockheed Martin Corporation

Dahlgren, Virginia, USA

Full-time

Job Description At the dawn of a new space age, Lockheed Martin a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every day we use our outstanding skills and experiences to create, craft and build solutions to some of the worlds' hardest engineering problems. Our culture supports employees to dream big, perform with excellence and create incredible products. We provide the resources, encouragement and focus and if you have the p

Senior Systems Administrator, Classified IT

Aduril Industries

Washington, District of Columbia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Senior Systems Administrator

Booz Allen Hamilton

Washington, District of Columbia, USA

Full-time

Job Number: R0221565 Systems Administrator, Senior The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working within classified environments supporting agencies with a solid background in windows operating systems to help u

Senior Systems Administrator

Booz Allen Hamilton

Arlington, Virginia, USA

Full-time

Job Number: R0221552 Systems Administrator, Senior The Opportunity: Your combination of people skills and te chn ical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the te chn ology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working within classified environments supporting agencies with a solid background in windows operating systems to he

Sr. Systems Administrator

Arena Technical Resources

Redstone Arsenal, Alabama, USA

Full-time

Job DescriptionJob Title: Sr Systems Administrator Job Location: Redstone Arsenal, Alabama Eligibility/Clearance: Secret Clearance is required. This position supports a government contract Job Description: We are seeking a Systems Administrator that will work within a cohesive team environment and is responsible for the effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. This role is critical for ensuring

Senior Systems Administrator-Web Systems

Penske Truck Leasing

Reading, Pennsylvania, USA

Full-time

You may know Penske for our big yellow trucks. But did you know we're an industry-leading technology innovation company? At Penske we have a 50-year history of leading the transportation and supply-chain industry, delivering world-class and award-winning technology solutions. And, it starts with our associates. No matter what your skills or technology stack, our IT team is for you. You'll work and grow alongside great people and on really cool projects. We inspire our IT experts to push the boun

Senior Systems Administrator

Robert Half

Des Moines, Iowa, USA

Full-time

Description Location: Hybrid position (remote with limited on-site work as needed - must reside in Iowa). Salary: $115,000 - $125,000 We are seeking a Senior Systems Administrator to join our premier client's dynamic IT team! This critical role involves providing advanced support for on-premises and cloud-based solutions, ensuring systems operate securely, reliably, and efficiently. As the Senior Systems Administrator you'll play a key role in managing infrastructure, monitoring performance, a

Senior Systems Administrator (Onsite)

Two95 International

Dallas, Texas, USA

Contract

Title Senior Systems Administrator Position Contract to Hire Location Dallas, TX Rate- $Open(Best Possible) Job Description: They are seeking a generalist who has 7 years of experience. This person must have automation experience, they believe any Sr. Sys Admin would be automating processes via Power Automate, PowerShell or Python. Someone who has experience with data migrations, acquisitions, and/or integrations. Google ecosystem Expertise in email routing, DNS configuration, SPF/DKIM/DMARC, Go

Senior Systems Administrator

IDR Inc.

Huntsville, Alabama, USA

Full-time

IDR is seeking a Senior Systems Administrator to join one of our top clients in Huntsville, AL. This role is perfect for a seasoned professional with a strong background in system administration, active directory, and scripting. If you are looking for an opportunity to join a large organization and work within a team-oriented culture, please apply today! Position Overview/Responsibilities for the Senior Systems Administrator: - Manage active directory, including user group management and group

Senior Systems Administrator

IO Associates

South Pasadena, Florida, USA

Full-time

Senior Systems Administrator - MacDill AFB (Tampa, FL) Join a fast-growing consulting firm delivering mission-critical IT infrastructure for the Department of Defense. Our client is seeking a Senior Systems Administrator to support operations at MacDill AFB. Requirements: Active Top Secret clearance (TS/SCI eligible) DoD 8570 certification (Security+ or equivalent) 4+ years of systems administration experience Proficient with Windows Server, Linux, virtualization, and cloud platforms (AWS,

Senior Systems Administrator - onsite

Beacon Hill

Independence, Ohio, USA

Contract

Our client on the West side of Cleveland is looking for a Senior IT Systems Administrator. This is a 6 month contract to hire position. **This position is on site 5 days a week** Our client wants someone who can get things done, improve their environment, make changes if needed, etc. They need to be confident in their skills. Position Summary: The Senior IT Systems Administrator will be responsible for maintaining our client's IT infrastructure, ensuring the stability, security, and efficien

Senior Systems Administrator

Booz Allen Hamilton

Huntsville, Alabama, USA

Full-time

Job Number: R0220402 Systems Administrator, Senior The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting law enforcement agencies? We're looking for a systems administrator who spe cia lizes in Windows to help us build solutions to help fight crime. As a systems administrator on our project, you'll ensure the current infrastructure is functiona

Sr Systems Administrator

SNI Technology

Orlando, Florida, USA

Contract

Job Details We're seeking a seasoned Systems Administrator with at least 5 years of experience managing Microsoft-based infrastructure, Azure IaaS environments, and Microsoft 365 services. The ideal candidate will ensure the reliability, security, and performance of both on-premise and cloud-based systems, while supporting collaboration tools and enabling infrastructure automation. Key Responsibilities: Manage and maintain Windows Server environments, including Active Directory, DNS, DHCP, and

Senior Systems Administrator

Golden Resources. Inc.

Dallas, Texas, USA

Full-time, Contract, Third Party

Our client is looking for a Senior Systems Administrator who can take initiative and solve problems effectively. This role will oversee and enhance IT infrastructure. This role involves leading technology projects, implementing automation solutions, and supporting the ongoing expansion of our systems. The ideal candidate will help maintain and improve the tools and platforms used by a large user base in a blended cloud and on-premises setup. Top skills you need to have: Experience leading Micro

Sr Systems Administrator

Irvine Technology Corporation (ITC)

Dallas, Texas, USA

Full-time

Sr. Systems Administrator We have an immediate need for a Sr. Systems Administrator to join our client for a full-time, direct hire position that is fully onsite in Dallas, NYC, Phoenix or Austin. This position will support a 90% virtualized environment within Azure and AWS. Location: Onsite in Dallas, NYC, Phoenix or Austin This job expects to pay about $110,000-130,000 benefits What You ll Do: Participate in on-call rotation, after-hours maintenance, and incident response to ensure system ava

Sr. Systems Administrator

MSITEK LLC

Herndon, Virginia, USA

Contract

- 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position - 4+ years with PowerShell scripting for automation, extremely fluent in PowerShell and command lines - Experience with Windows firewalls - Expert level Microsoft Azure Administrator - Expert level Windows admin skills (Active Directory, DNS, Group Policy) - Security Clearance or ability to get a Clearance Nice to Have Skills and Experience -Bachelors in Computer Science - Professional industry certifications