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Sr System Admin Jobs in Arizona (NOW HIRING)

Raytheon

Senior System Administrator

Tucson, AZ

$81K - $110K/yr

Provide IT systems administration in a heterogeneous Microsoft Windows environment supporting SIPR and other information systems. * Work as a team member in a fast ...

Raytheon Technologies

Senior System Administrator

Tucson, AZ · On-site

$81K - $110K/yr

Provide IT systems administration in a heterogeneous Microsoft Windows environment supporting SIPR and other information systems. * Work as a team member in a fast-paced technological environment.

krg technology inc

Sr.System Administrator

Tempe, AZ

$82K - $111K/yr

SCCM/SCOM Managing/Leading a team of other SA's Work experience in financial services Experience in Monitoring Systems. Additional Information Mandatory Skills: Active Directory, Microsoft Exchange ...

World View

Senior Systems Administrator

Tucson, AZ

$81K - $110K/yr

Senior Systems Administrator Tucson, AZ Company Overview Ondas Holdings Inc (NASDAQ:ONDS) is ... Perform system patching, vulnerability remediation, and security hardening across server and ...

World View

Senior Systems Administrator

Tucson, AZ · On-site

$90K - $110K/yr

Perform system patching, vulnerability remediation, and security hardening across server and ... What We Offer As Senior Systems Administrator, you will help strengthen the core technology ...

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Sr System Admin information

What is a Sr System Admin?

Sr System Admins, or Senior System Administrators, are IT professionals responsible for managing and maintaining an organization's computer systems, servers, and network infrastructure. They oversee system performance, troubleshoot issues, implement security measures, and ensure data integrity and availability. Sr System Admins often lead projects, mentor junior staff, and play a critical role in planning and executing IT strategies to support business operations.

What are the key skills and qualifications needed to thrive as a Sr System Admin?

To thrive as a Sr System Admin, you need advanced knowledge of operating systems, network infrastructure, security protocols, and typically a degree in computer science or related field. Proficiency with server virtualization tools, cloud platforms (like AWS or Azure), and certifications such as Microsoft Certified: Windows Server or CompTIA Server+ are highly valuable. Strong problem-solving skills, effective communication, and the ability to work independently or lead a team set exceptional candidates apart. These skills and qualifications are crucial to ensure reliable system performance, security, and efficient IT operations in complex enterprise environments.

What are some common challenges Sr System Admins face when managing complex IT infrastructures?

Sr System Admins often encounter challenges such as integrating legacy systems with modern technologies, maintaining high system uptime, and responding quickly to security threats. Balancing proactive maintenance with urgent troubleshooting can be demanding, especially in large, distributed environments. Effective communication and collaboration with network, security, and development teams is essential to ensure seamless operations and swift issue resolution. Staying current with evolving technologies and best practices is also key to successfully managing these challenges.

Do senior system administrators make good money?

Senior system administrators typically earn higher salaries due to their experience, technical skills, and certifications such as CompTIA or Cisco. Their compensation can vary based on industry, location, and company size but generally reflects their advanced responsibilities managing complex IT infrastructure. They often receive benefits like bonuses, overtime, and opportunities for career advancement.

What does a senior system administrator do?

A senior system administrator manages and maintains an organization’s IT infrastructure, including servers, networks, and security systems. They troubleshoot issues, implement updates, and ensure system reliability, often using tools like scripting and monitoring software. They also provide guidance to junior staff and may hold certifications such as CompTIA Server+ or Microsoft Certified Solutions Expert.

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For Sr System Admin jobs in Arizona, the most frequently searched job titles are:

What job categories do people searching Sr System Admin jobs in Arizona look for?

The top searched job categories for Sr System Admin jobs in Arizona are:

What cities in Arizona are hiring for Sr System Admin jobs?

Cities in Arizona with the most Sr System Admin job openings:

Sr System Admin jobs near you
Infographic showing various Sr System Admin job openings in Arizona as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 12% Part Time, and 3% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

Senior System Administrator Secret Clearance ( onsite weekends )

Tucson, AZ • On-site

3M HEALTHCARE
10K+ employees
Learn more about 3M HEALTHCAREexternal

$82K - $112K/yr

Full-time

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Raytheon Technologies' Digital Technology organization in Tucson, AZ seeks a Senior System Administrator to support classified security systems. An active Secret clearance is required. The role is full-time and onsite with a 9-shift weekend schedule and 12-hour rotations, including shift differentials. You will administer Windows and RHEL systems, manage AD, VMware, backups, and coordinate with cybersecurity to uphold DoD RMF requirements. Travel up to 10% may be required.

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