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Senior Systems Administrator Jobs (NOW HIRING)

World View

Senior Systems Administrator

Tucson, AZ · On-site

$90K - $110K/yr

$90,000 - $110,000 a year Senior Systems Administrator Tucson, AZ Company Overview Ondas Holdings Inc (NASDAQ:ONDS) is building a new kind of intelligence company, one designed for a world where speed ...

Addison Group

Senior Systems Administrator

Dallas, TX · On-site

$90K - $110K/yr

Senior Systems Administrator Location: Dallas, TX Salary Range: $90K-$110K Benefits: Medical, Dental, Vision, 401(k) We are looking to bring on a Senior Systems Administrator to our growing team.

Addison Group

Senior Systems Administrator

Dallas, TX · On-site

$90K - $110K/yr

Senior Systems Administrator Location: Dallas, TX Salary Range: $90K-$110K Benefits: Medical, Dental, Vision, 401(k) We are looking to bring on a Senior Systems Administrator to our growing team.

MANTECH

Senior Systems Administrator

Chantilly, VA · On-site

$88K - $119K/yr

As a Senior Systems Administrator you will be responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities, as well as coordinating and/or supervising a ...

MANTECH

Senior Systems Administrator

Chantilly, VA · On-site

$88K - $120K/yr

As a Senior Systems Administrator you will be responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities, as well as coordinating and/or supervising a ...

MANTECH

Senior Systems Administrator

Chantilly, VA · On-site

$88K - $120K/yr

As a Senior Systems Administrator you will be responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities, as well as coordinating and/or supervising a ...

SAIC

Senior Systems Administrator

Huntsville, AL

$84K - $114K/yr

ORA_ON_SITE Description SAIC is seeking a Senior Systems Administrator located in Huntsville, AL to support USPACOM to enhance and upgrade a myriad of applications and services, in an enterprise ...

STEPS TALENT, LLC

Senior Systems Administrator

Tallahassee, FL · On-site

$74K - $101K/yr

Position: Sr. Systems Administrator - Windows, AWS & Azure Location: Tallahassee, FL Duration: 10+ Months [Extension Possible] Summary: We are seeking an experienced Senior Systems Administrator to ...

World View

Senior Systems Administrator

Tucson, AZ · On-site

$90K - $110K/yr

$90,000 - $110,000 a year Senior Systems Administrator Tucson, AZ Company Overview Ondas Holdings Inc (NASDAQ:ONDS) is building a new kind of intelligence company, one designed for a world where speed ...

World View

Senior Systems Administrator

Tucson, AZ

$90K - $110K/yr

Senior Systems Administrator Tucson, AZ Company Overview Ondas Holdings Inc (NASDAQ:ONDS) is building a new kind of intelligence company, one designed for a world where speed, autonomy, and decision ...

Leidos

Sr. Systems Administrator

Gaithersburg, MD · On-site

$92K - $166K/yr

Leidos is seeking a Senior Systems Administrator to join the Maru Program on a high-performing team supporting an Intelligence Community customer on a fast-paced Agile program. In this role, you'll ...

New

ASMGi

Senior Systems Administrator

Cleveland, OH

$65K - $85K/yr

Senior Systems Administrator - ASMGi The focus of the Senior Systems Administrator is on producing high quality, detailed work based on established standards, guidelines and procedures. Precise ...

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Senior Systems Administrator information

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$49K

$102.2K

$143.5K

How much do senior systems administrator jobs pay per year?

As of Aug 10, 2026, the average yearly pay for senior systems administrator in the United States is $102,229.00, according to ZipRecruiter salary data. Most workers in this role earn between $86,000.00 and $116,500.00 per year, depending on experience, location, and employer.

How much does a senior systems administrator make in the US?

A senior systems administrator in the US typically earns between $80,000 and $120,000 annually, depending on experience, location, and industry. They often hold certifications like CompTIA Server+ or Microsoft Certified Solutions Expert (MCSE) and work with environments involving Windows, Linux, or cloud platforms.

What are some common challenges faced by senior systems administrators, and how can they be addressed?

Senior Systems Administrators often encounter challenges such as managing complex, multi-platform environments, ensuring uptime during upgrades or maintenance, and responding to unexpected technical incidents. Balancing proactive system improvements with urgent troubleshooting is a frequent demand. To address these challenges, it's important to prioritize clear documentation, automate routine tasks where possible, and foster strong communication with IT and non-IT teams. Staying current with industry best practices and security protocols also helps prevent many common issues before they arise.

What are the key skills and qualifications needed to thrive as a senior systems administrator, and why are they important?

To thrive as a Senior Systems Administrator, you need deep expertise in server management, network administration, and operating systems, typically backed by a bachelor’s degree in IT or a related field. Familiarity with tools like VMware, Active Directory, Linux/Windows Server, and certifications such as CompTIA Server+, Microsoft Certified Solutions Expert (MCSE), or Red Hat Certified Engineer (RHCE) are often required. Strong problem-solving abilities, attention to detail, and effective communication skills help you excel in troubleshooting and collaborating with IT teams. These competencies are crucial for maintaining system reliability, minimizing downtime, and supporting organizational technology needs.

What is the difference between Senior Systems Administrator vs Systems Engineer?

AspectSenior Systems AdministratorSystems Engineer
CredentialsTypically requires certifications like CompTIA Server+, Microsoft Certified: Windows Server, or Cisco CCNAOften requires similar certifications, with additional focus on network design and engineering
Work EnvironmentPrimarily manages and maintains existing IT infrastructure within organizationsDesigns, develops, and implements new systems and network solutions
Employer & Industry UsageCommon in IT departments across various industries, focusing on operational stabilityFound in organizations needing system design and integration, often in tech and engineering sectors

While both roles require strong technical skills and certifications, Senior Systems Administrators focus on maintaining and supporting existing systems, whereas Systems Engineers are more involved in designing and implementing new systems and solutions.

What is a senior systems administrator?

Senior Systems Administrators are IT professionals responsible for managing and maintaining an organization's computer systems, servers, and networks. They oversee system performance, ensure security, troubleshoot complex issues, and often mentor junior administrators. Their work is critical for minimizing downtime, implementing upgrades, and ensuring the reliability and security of IT infrastructure. Senior Systems Administrators typically have years of experience and deep technical knowledge in areas like operating systems, networking, and cloud platforms.

What does a senior systems administrator do?

A senior systems administrator is an IT professional who manages the network and computer system infrastructure for a company or organization. Your responsibilities may vary depending on your employer; at a large company, you may be in a management position in which you oversee a team or department to design and implement network and database solutions for an organization, perform software programming to expand technological capabilities, or troubleshoot network issues and devise solutions. In a smaller company, you may more directly engage with these duties, supported by a small technical staff.

Do senior systems administrators make good money?

Senior systems administrators typically earn a competitive salary that reflects their experience, technical skills, and certifications such as CompTIA or Cisco. Their compensation often includes benefits and opportunities for advancement, with salaries varying by industry and location. They are also responsible for managing complex IT infrastructure and ensuring system security and reliability.
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Senior Systems Administrator jobs near you
Infographic showing various Senior Systems Administrator job openings in the United States as of August 2026, with employment types broken down into 85% Full Time, 9% Part Time, 5% Contract, and 1% Nights. Highlights an 90% Physical, 2% Hybrid, and 8% Remote job distribution, with an average salary of $102,229 per year, or $49.1 per hour.

Senior Systems Administrator

Arizona Humane Society

Phoenix, AZ

$85K - $115K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 10 days ago

Job description

Senior Systems Administrator

The Arizona Humane Society is seeking a full-time Senior Systems Administrator to help power the technology that supports life-saving work for thousands of animals each year. If you're a proactive problem solver who thrives in a collaborative, mission-driven environment, we'd love to hear from you!

Paws Up For Great Benefits!

  • Competitive salary
  • Generous PTO program
  • Up to 8 paid holidays per year
  • 401(k) with employer contribution
  • Medical, Dental and Vision Plans
  • Got student loans? Employment with AHS may qualify you for the Public Service Loan Forgiveness (PSLF) program!
  • Discounts on veterinary services and other pet perks!

Day in the Life:

As the Senior Systems Administrator, you will play a key role in maintaining and enhancing the technology infrastructure that supports the Arizona Humane Society's life-saving mission. You will be responsible for planning, installing, upgrading, monitoring, and maintaining servers, virtualization, storage, networking, Microsoft 365, VoIP, security systems, backups, and business applications to ensure reliable, secure, and efficient operations across the organization.

In this role, you'll provide advanced technical support by troubleshooting hardware and software issues, managing security updates and disaster recovery processes, maintaining IT documentation and asset inventories, and supporting end users across multiple campuses. You'll also participate in an on-call rotation for after-hours emergencies, assist with infrastructure projects, and help implement technology solutions that keep our teams connected and our mission moving forward.

Job Requirements:

  • Associates or Bachelor's Degree in an information technology area or equivalent experience required.
  • Relevant IT certifications (e.g. Security+, Network+, CCNA, etc.) preferred.
  • CCNA or CompTIA Network+ preferred.
  • 5 years of systems administration and network administration experience.
  • Advanced knowledge of Windows server and desktop operating systems.
  • Active Directory/LDAP user and group policy administration.
  • Managing servers' virtualization technologies like VMWare, Microsoft Hyper-V, or AZURE.
  • Strong knowledge of LAN/WAN Routing and Switching administration, configuration, and troubleshooting.
  • 1-2 years of Microsoft O365 administration and configuration experience.
  • Experience with VOIP phone systems.
  • 1-2 years of AZURE administration experience preferred.
  • Must possess good communication skills and can relate well with employees at all levels.
  • Windows PowerShell scripting experience helpful.

Physical Demands/Work Environment:

While performing the duties of this job, the employee is frequently required to stand, walk, sit, use hands to finger, handle, or feel objects, tools or controls, reach with hands and arms, climb stairs, balance, stoop, kneel, crouch or crawl. The employee must occasionally lift and/or move up to 25 pounds. The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

There will be exposure to dust, heat, cold and temperature changes; occasional wet floors, and animal noises, odors and dander. Most time will be spent in a typical air conditioned and heated office environment.

Additional Information

The Arizona Humane Society is an Equal Opportunity Employer and a participant in the E-Verify program.

Ready to Join our team and make a difference every day?

Explore all of our current career opportunities here: Careers - Arizona Humane Society


Pre-employment background check is required.

Apply