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Senior Systems Administrator Jobs in Decatur, GA

STR

Classified Systems Administrator

Atlanta, GA · On-site

$85K - $120K/yr

Supporting senior administrators in implementing, deploying, and maintaining Linux (Red Hat, CentOS, Ubuntu) and Windows operating systems in traditional and virtualized environments across a variety ...

TEKsystems

Systems Administrator

Atlanta, GA · On-site

$50 - $66/hr

Equivalent experience in systems management, infrastructure management, network systems engineering ... It is unlawful in Massachusetts to require or administer a lie detector test as a condition of ...

Brightstar Lottery

Systems Administrator II

Atlanta, GA · Hybrid

$40K - $115K/yr

Overview The Systems Administrator is part of the local operations team based in Atlanta, GA . This role combines 24x7 operational support for lottery and iLottery environments with responsibility ...

Brightstar Lottery

Systems Administrator II

Atlanta, GA · On-site

$40K - $115K/yr

Overview The Systems Administrator is part of the local operations team based in Atlanta, GA . This role combines 24x7 operational support for lottery and iLottery environments with responsibility ...

Brightstar Lottery

Systems Administrator II

Atlanta, GA · Hybrid

$40K - $115K/yr

Overview The Systems Administrator is part of the local operations team based in Atlanta, GA . This role combines 24x7 operational support for lottery and iLottery environments with responsibility ...

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All JobsSystems Administrator JobsSenior Systems Administrator JobsSenior Systems Administrator Jobs in Decatur, GA

Senior Systems Administrator information

See Decatur, GA salary details

$47.8K

$99.8K

$140.1K

How much do senior systems administrator jobs pay per year?

As of Sep 2, 2026, the average yearly pay for senior systems administrator in Decatur, GA is $99,810.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,000.00 and $113,700.00 per year, depending on experience, location, and employer.

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.

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 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 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.

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 responsible for managing complex IT infrastructure, which justifies higher pay compared to entry-level roles.

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

A senior systems administrator in the US typically earns between $80,000 and $130,000 annually, depending on experience, location, and industry. They often require strong skills in network management, server administration, and certifications such as CompTIA or Cisco. Salaries can vary based on the complexity of the environment and the size of the organization.

Is a senior systems administrator a high paying job?

A senior systems administrator typically earns a higher salary compared to entry-level roles due to their experience and technical skills in managing complex IT infrastructure. Salaries vary by industry, location, and certifications such as CompTIA or Cisco, but they are generally considered well-compensated within the IT field.
More about Senior Systems Administrator jobs

What are the most commonly searched types of Systems Administrator jobs in Decatur, GA?

The most popular types of Systems Administrator jobs in Decatur, GA are:

What job categories do people searching Senior Systems Administrator jobs in Decatur, GA look for?

The top searched job categories for Senior Systems Administrator jobs in Decatur, GA are:

What cities near Decatur, GA are hiring for Senior Systems Administrator jobs?

Cities near Decatur, GA with the most Senior Systems Administrator job openings:

Senior Systems Administrator jobs near you
Infographic showing various Senior Systems Administrator job openings in Decatur, GA as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, 3% Contract, and 1% Nights. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution, with an average salary of $99,810 per year, or $48 per hour.

Classified Systems Administrator

STR

Atlanta, GA • On-site

$85K - $120K/yr

Full-time

Posted 22 days ago

Job description

STR is hiring a Systems Administrator with an active Top-Secret clearance to support our Atlanta, GA
Responsibilities:
  • Supporting senior administrators in implementing, deploying, and maintaining Linux (Red Hat, CentOS, Ubuntu) and Windows operating systems in traditional and virtualized environments across a variety of hardware solutions
  • Supporting Information Systems Security Managers (ISSM), Information System Security Officers (ISSO), senior management, researchers and other team members supporting the customers' requirements
  • Running vulnerability and compliance scanning tools and have the knowledge to remediate the findings
  • Performing monthly patching of offline Windows and Linux assets
  • Researching and procuring necessary hardware and software components required to complete a task
  • Maintaining an accurate inventory of hardware and software licenses.
  • Performing hands-on diagnostics at the desktop level, including installing and upgrading software, implementing file backups, and configuring systems and applications.
  • Creating and/or maintaining end-user documentation for operating procedures
  • Configuring and maintaining NAS Storage, Networking, Firewall, and Directory Services such as MS Active Directory management and Group Policy administration
  • Performing performance monitoring, results analysis and enhancement, as well as process automation using PowerShell scripting and other available technologies
  • Providing daily lab support, systems maintenance, problem resolution, tracing and project support
  • Creating and maintaining installation and configuration Standard Operating Procedures (SOPs)
  • Maintaining current knowledge of DoD security, technical guidelines and organizational policies
  • Providing support for production and development environments
  • Assisting with requests in the ticketing system for Desktop Support Services including scanners, copies, printers, phones and phone services
  • Providing ad-hoc travel and after-hours support for our Information Systems' maintenance, patching and remediation

Requirements:
  • This position requires an active Top Secret /SCI security clearance, for which U.S. citizenship is needed by U.S. Government
  • Understanding of the basics of Linux (Red Hat, CentOS, Ubuntu) and Windows OS Administration
  • Experience with business and engineering applications (ex. Microsoft Office, MATLAB, Visual Studio, VMWare and other scientific/engineering applications)
  • Excellent problem solving, time management and organizational skills with the ability to prioritize work and meet customer demands and deadlines
  • Exceptional customer service, interpersonal skills, and desire to learn.
  • Self-motivated with strong analytical, diagnostic, and troubleshooting skills

Preferred:
  • Microsoft and/or Linux technical certifications
  • Active Directory including Group Policy, LDAP backend, and Replication
  • Enterprise Virtualization Tools
  • Multi-Factor Authentication and Public Key Infrastructure
  • Web Server management
  • Effective utilization of Security Technical Implementation Guidelines (STIGS) and Security Content Automation Protocol (SCAP) Content and Tools
  • Host Based Security System (HBSS) implementation and maintenance
  • Current knowledge of DoD Ports, Protocols, and Services (PPS)

The base salary range for this role is $85,000.00 - $120,000.00
STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.
STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.
STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info.
STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.
If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info.
Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

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