CrawlJobs Logo

Filters

Location
Salary
Clear all filters

System Administrator Jobs (On-site work)

90 Job Offers

Linux System Administrator
Save Icon
Join Geon Technologies as a Linux System Administrator in Columbia, MD. This role requires 10+ years of experience, an active security clearance, and expertise in Linux/Unix, Kubernetes, and configuration management (e.g., Ansible). You will provide Tier 1/2 support, manage IT systems, and enjoy ...
Location Icon
Location
United States , Columbia
Salary Icon
Salary
175000.00 - 250000.00 USD / Year
geontech.com Logo
Geon Technologies
Expiration Date
Until further notice
Jr. System Administrator
Save Icon
Launch your IT career at Lake Superior State University as a Jr. System Administrator. This role involves developing and maintaining applications for the Ellucian Banner system using Oracle PL/SQL and Java. You'll gain valuable experience in a collaborative higher-ed environment located in Sault ...
Location Icon
Location
United States , Sault Ste. Marie
Salary Icon
Salary
Not provided
lssu.edu Logo
Lake Superior State University
Expiration Date
Until further notice
Specialist, ETS Helpdesk (System Administrator II)
Save Icon
Join our IT team in Bangsar South as an ETS Helpdesk Specialist. You will provide end-to-end technical support for Windows & MacOS workstations and endpoint devices. Key areas include JIRA, Active Directory, and Google Workspace administration. We seek a certified, customer-focused professional w...
Location Icon
Location
Malaysia , Bangsar South
Salary Icon
Salary
Not provided
deliveryhero.com Logo
Delivery Hero
Expiration Date
Until further notice
Azure System Administrator
Save Icon
Join our team in Pleasanton, CA, as an Azure System Administrator. This contract-to-permanent role requires 3-5 years of experience managing Azure, Windows Server, and VMware. You will oversee cloud infrastructure, migrations, and security while providing Tier 2 support. We offer competitive bene...
Location Icon
Location
United States , Pleasanton
Salary Icon
Salary
Not provided
https://www.roberthalf.com Logo
Robert Half
Expiration Date
Until further notice
System Administrator Level 2
Save Icon
Seeking an experienced System Administrator Level 2 in Annapolis Junction. This role involves managing IT infrastructure, providing Tier 1/2 support for client/server/storage/network systems, and configuring UNIX/Windows OS. Requires 10 years' SA experience, a security clearance, and DOD 8570 cer...
Location Icon
Location
United States , Annapolis Junction
Salary Icon
Salary
Not provided
ctp-web.com Logo
Columbia Technology Partners
Expiration Date
Until further notice
System Administrator
Save Icon
Seeking a System Administrator to lead IT operations at Andersen AFB, Guam. This role requires a Bachelor's degree, 10+ years' experience, and Security+ certification. You will manage hardware/software systems and ensure compliance, requiring a Top Secret clearance. We offer full benefits includi...
Location Icon
Location
United States , Andersen AFB, Yigo
Salary Icon
Salary
Not provided
tdxcorp.com Logo
TDX
Expiration Date
Until further notice
System Administrator
Save Icon
Seeking a seasoned System Administrator to secure and modernize IT infrastructure within a regulated U.S. Defense environment. This Tampa-based role requires 7+ years' experience, expertise in Windows enterprise systems, and compliance knowledge (NIST/CMMC). U.S. citizenship and the ability to ob...
Location Icon
Location
United States , Tampa
Salary Icon
Salary
Not provided
aerosimulation.com Logo
Aero Simulation, Inc. (ASI)
Expiration Date
Until further notice
Senior Linux System Administrator - Support Engineer
Save Icon
Join our Canberra-based team as a Senior Linux System Administrator - Support Engineer. You will design, maintain, and optimize mission-critical Linux infrastructure and HPC clusters, ensuring high availability and performance. This on-site role requires 5+ years of Linux/HPC expertise, strong sc...
Location Icon
Location
Australia , Canberra
Salary Icon
Salary
Not provided
https://www.hpe.com/ Logo
Hewlett Packard Enterprise
Expiration Date
Until further notice
IT System Administrator
Save Icon
Seeking an IT System Administrator in Bonita Springs to manage and optimize our Yardi Voyager ERP and financial systems. You'll ensure data integrity, handle user access, and support integrations. Requires 3-5 years of ERP experience, SQL knowledge, and strong problem-solving skills. We offer a c...
Location Icon
Location
United States , Bonita Springs
Salary Icon
Salary
80000.00 USD / Year
rittenhousevillages.com Logo
Rittenhouse Village At Michigan City
Expiration Date
Until further notice
System Administrator, Senior
Save Icon
Seeking a Senior System Administrator in Columbia, MD, to design and maintain critical Cross Domain Solutions. Requires TS/SCI clearance, 5+ years' experience with Linux (RHEL/CentOS), VMware, and networking. This role offers competitive benefits and the chance to support vital national cybersecu...
Location Icon
Location
United States , Columbia
Salary Icon
Salary
77600.00 - 176000.00 USD / Year
boozallen.com Logo
Booz Allen Hamilton
Expiration Date
Until further notice

About the System Administrator role

Explore a world of opportunity in system administrator jobs, the backbone of modern IT infrastructure. System administrators are the essential technicians who ensure an organization's computer systems—from servers and networks to software and security—run reliably, securely, and efficiently. This critical profession sits at the intersection of technology and operations, demanding a blend of deep technical expertise, proactive problem-solving, and clear communication. Professionals in this field are responsible for the day-to-day health of IT environments, making them indispensable in virtually every industry, from finance and healthcare to education and government.

The core responsibilities of a system administrator are vast and varied, typically encompassing system installation, configuration, and maintenance. This includes setting up hardware and software, managing user accounts and access permissions, and performing regular system updates and patches. A significant portion of the role involves monitoring system performance and network activity to preempt issues and ensure optimal uptime. System administrators are also the first line of defense for cybersecurity, implementing firewalls, intrusion detection systems, and backup/disaster recovery plans to protect sensitive data. Furthermore, they provide crucial technical support to colleagues, diagnosing and resolving hardware, software, and network problems to minimize disruption. Automating repetitive tasks through scripting is a common practice to enhance efficiency and consistency across the IT landscape.

To thrive in system administrator jobs, individuals must possess a strong foundational skill set. Proficiency in operating systems is paramount, with deep knowledge of environments like Linux (e.g., Red Hat, Ubuntu) and/or Microsoft Windows Server being highly common. Understanding networking fundamentals—such as TCP/IP, DNS, DHCP, and VPNs—is non-negotiable. Experience with virtualization platforms like VMware or Hyper-V, along with cloud services from providers such as AWS, Azure, or Google Cloud, is increasingly essential. Scripting skills in Bash, PowerShell, or Python are highly valued for automation. Beyond technical prowess, successful system administrators exhibit excellent analytical and problem-solving abilities, meticulous attention to detail, and the capacity to manage multiple priorities in a high-pressure environment. Strong written and verbal communication skills are critical for documenting procedures, creating user guides, and explaining complex technical concepts to non-technical stakeholders.

Typical requirements for these roles often include a bachelor’s degree in computer science, information technology, or a related field, although substantial relevant experience can sometimes substitute for formal education. Professional certifications, such as CompTIA Security+, Linux+, Microsoft Certified: Azure Administrator, or Red Hat Certified System Administrator (RHCSA), are frequently sought by employers and can significantly enhance a candidate's profile. A commitment to continuous learning is vital due to the rapid evolution of technology. For those with a passion for building, maintaining, and securing the digital frameworks that power businesses, system administrator jobs offer a challenging, stable, and rewarding career path with endless avenues for specialization and advancement.