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Sr System Admin Jobs (NOW HIRING)

Sr. System Administrator

Chicago, IL ยท On-site

$100K - $120K/yr

We're looking for friendly, professional, and motivated Sr. Systems Administrator to join our ... Minimum of three years' experience in a Systems Admin role encompassing the following: * Experience ...

Senior System Administrator

Houston, TX ยท On-site

$82K - $111K/yr

The Senior System Administrator is responsible for designing, optimizing, and securing the ... Due to unrestricted privileged access (Domain Admin / Root) to critical intellectual property and ...

Senior System Administrator

Orange, CT ยท On-site

$45 - $50/hr

Senior System Administrator Location: Orange, CT Duration: 6+ months Compensation: $45.00 - $50.00/hr Work Requirements: US Citizen, GC Holders or Authorized to Work in the U.S. Senior System ...

Senior System Administrator

Seal Beach, CA ยท On-site

$146K - $197K/yr

Senior System Administrator Company: The Boeing Company Boeing Defense, Space & Security (BDS), Space Mission Systems Organization seeks an Senior System Administrator to support Proprietary Programs ...

Senior System Administrator

Seal Beach, CA ยท On-site

$146K - $197K/yr

Senior System Administrator Company: The Boeing Company Boeing Defense, Space & Security (BDS), Space Mission Systems Organization seeks an Senior System Administrator to support Proprietary Programs ...

Senior System Administrator Location: Arnold AFB, TN Job Family Code: P - IT/Cyber Security / Network Systems Function/Branch: Engineering/Infrastructure Directorate: Engineering & Tech Support ...

Senior System Administrator Location: Arnold AFB, TN Job Family Code: P - IT/Cyber Security / Network Systems Function/Branch: Engineering/Infrastructure Directorate: Engineering & Tech Support ...

Senior System Administrator Location: Arnold AFB, TN Job Family Code: P - IT/Cyber Security / Network Systems Function/Branch: Engineering/Infrastructure Directorate: Engineering & Tech Support ...

Senior System Administrator

Annapolis, MD ยท On-site

$85K - $115K/yr

Senior System Administrator Location: Annapolis Junction, MD Compensation Range: $190 -$210K *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the ...

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Sr System Admin information

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$49K

$102.2K

$143.5K

How much do sr system admin jobs pay per year?

As of Jun 10, 2026, the average yearly pay for sr system admin 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.

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

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.

What are Sr System Admins?

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.
More about Sr System Admin jobs
What cities are hiring for Sr System Admin jobs? Cities with the most Sr System Admin job openings:
What states have the most Sr System Admin jobs? States with the most job openings for Sr System Admin jobs include:
Infographic showing various Sr System Admin job openings in the United States as of June 2026, with employment types broken down into 1% As Needed, 98% Full Time, and 1% Part Time. Highlights an 78% Physical, 2% Hybrid, and 20% Remote job distribution, with an average salary of $102,229 per year, or $49.1 per hour.
Sr. System Administrator

Sr. System Administrator

HARRIS & HARRIS LTD

Chicago, IL โ€ข On-site

$100K - $120K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted yesterday


Job description

Harris & Harris has over 50 years of experience in customer care and revenue recovery, specializing in the utilities, government, and healthcare markets. Weโ€™re looking for friendly, professional, and motivated Sr. Systems Administrator to join our Information Technology team. If youโ€™re looking for a company that embraces the principles of respect, compassion and trust, please apply with us today!

Sr. Systems Administrator


The Sr. Systems Administrator will be responsible for monitoring and supporting all components of desktop technology

Schedule: Regular business hours are 8:00am to 5:00pm Monday through Friday

Additional Compensation and Benefits:

At Harris & Harris, we truly care about each employeeโ€™s health, wellness, financial stability, and education. We are proud to offer each employee the following benefits:

  • Medical, Dental, and Vision insurances from premium providers
  • 401K with matching
  • Company paid Accident and Disability Insurance, Long Term Disability Insurance, EAP, and Travel Assistance
  • Tuition Reimbursement
  • Paid Time Off, Wellness Days, and Sick Days
  • Additional benefits such as identity theft protection, flexible spending accounts, pre-tax commuter benefits, and more.

DAY TO DAY

  • Responsible for monitoring and supporting all components of desktop technology
  • Responsible for the operation and maintenance of the hardware and the OS of all Windows-based workstations and servers
  • Responsible for Infrastructure Support Tickets and as an escalation resource for the Help Desk Analysts
  • Creates, maintains, and makes ongoing revisions to desktop-related processes, procedures, and documentation on software and hardware deployments, account administration, and helpdesk tasks
  • Develops and maintains a comprehensive set of Windows workstation and laptop images as well as thin client images to be used throughout all sites
  • Develops and maintains scripts and utilizes desktop management solutions to create a more efficient environment
  • Deploys, administers, and performance tunes workstation group policies related to system hardening procedures and policies
  • Evaluates and recommends technologies that can improve and streamline existing processes
  • Troubleshoots and provides solutions to hardware and software problems
  • Installs, upgrades, repairs, and removes hardware and software as necessary
  • Provides training and mentorship for desktop technicians on technologies of multiple disciplines
  • Manages VDI images, testing and rollout of new images and application related upgrades or updates
  • Acts as project lead in large-scale enterprise-wide hardware and software rollout/migration projects. Plans the analysis, evaluation, testing, implementation, integration, and migration strategy for deployment. Defines and implements complicated technical solutions that satisfy business requirements and align with corporate, project, and budgetary objectives
  • Leads large, complex projects over long time frames, which may extend 6 to 18 months in length
  • Monitors and supports application, database, and server backups
  • Performs monthly application releases, updates and patching
  • Troubleshoots and provides solutions to hardware and software problems and upgrade computer hardware and software as needed
  • Maintains server operating systems and functional differences between operating system vendors and versions
  • Administers, monitors, and maintains system for the Company in all environments
  • Assists system administration team with server provisioning using VMware virtual machine templates
  • Supports the planning of and performance of disaster recovery
  • Assists in projects as assigned by IT management
  • Complies with policies and procedures as required by compliance standards
  • Performance tunes and reviews systems as appropriate

WHAT YOU MUST POSSESS

Must Have:

  • High School Diploma required. Some college, preferred
  • Certifications including: CompTIA A+, Server+, Security+, Network +
  • Minimum of three yearsโ€™ experience in a Systems Admin role encompassing the following:
    • Experience in a helpdesk or service desk environment supporting over 500 users: IT administration with Microsoft Windows 10.
    • PC imaging and hardware deployment, group policy, workstation setup, remote assistance, Microsoft Active Directory and DNS preferred.
    • Active Directory
      • DNS/DHCP in a multi-site environment
      • Creation and administration of group policies to adhere to security standards and insurance of compliance standards
      • Role Based Access Control
    • VMware
      • Horizon VDI, VDEM and AppVolume
    • Networking
      • General understanding of IP network and routing technologies
    • Security Standards
      • CIS/DISA, PCI-DSS, SOC, HIPAA


  • At least one year of experience with Windows 2012R2 or above

Additional Skills:

  • Ability to demonstrate a high level of professionalism and an ability to work well with a diverse workforce
  • Strong ability to prioritize work appropriately, be flexible and well organized
  • Exceptional analytical and problem-solving skills
  • Ability to think out of the box and implement smart solutions to ever changing company needs
  • Excellent verbal and written communication skills
  • Excellent customer service skills

WHY HARRIS & HARRIS?

Harris & Harris is a premier, full-service revenue recovery firm headquartered and founded in Chicago, IL. Founded in 1968, we have been in business for more than 50 years, and we specialize in the utilities, government, and healthcare markets.

The family business Sam Harris started is now a firm of more than 500 hundred employees including collections professionals and customer care representatives who employ the latest technology and best ethical practices to help businesses recover revenue and provide world class customer service.

We take pride in knowing what it takes to turn a call from "average" to "excellent." We have been delighting clients and customers for decades thanks to our outstanding employees. They make the difference every day, shift, and call and transform challenges into victories.

At Harris & Harris, weโ€™re proud to be an organization where everyone is welcome and can be their authentic selves at work. Weโ€™re passionate about celebrating the differences that make each of us unique. Our culture focuses on our employees and we look for opportunities to recognize and celebrate together. We are an organization that cares about our people. From monthly activities, bonuses and contests, to competitive wages and benefits, we foster an environment where we employees feel valued.

We also are an organization that believes in the power of giving back. Our internal cross functional committee, Harris Cares, guides our philanthropic activities. We have partnered with organizations such as One Warm Coat, Greater Chicago Food Depository, American Cancer Society, Bright Pink, The Heat and Warmth Fund (THAW), and Operation Stars and Stripes. Most recently we have partnered with local schools and charitable organizations to give back to our communities including the American Heart Association, Habitat for Humanity, A Just Harvest, and R. Nathaniel Dett Elementary School.

At Harris & Harris, everyone is important, and one person can make a difference for their colleagues, for our clients, and for our company. We look forward to hearing from you!

Harris & Harris is an equal opportunity employer. Applicants will not be discriminated against based on race, color, creed, sex, sexual orientation, gender identity or expression, age, religion, national origin, disability, ancestry, marital status, veteran status, medical condition or any protected category prohibited by local, state or federal laws.