ZipRecruiter

Log In

1

System Administrator Iii Jobs (NOW HIRING)

next page

Showing results 1-20

All JobsSystem Administrator Iii Jobs

System Administrator Iii information

See salary details

$41K

$88.9K

$137.5K

How much do system administrator iii jobs pay per year?

As of Jul 14, 2026, the average yearly pay for system administrator iii in the United States is $88,927.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,000.00 and $104,000.00 per year, depending on experience, location, and employer.

What are System Administrator III roles and responsibilities?

A System Administrator III is a senior-level IT professional responsible for managing and maintaining an organization’s computer systems, servers, and network infrastructure. Their duties typically include installing, configuring, and troubleshooting hardware and software, ensuring system security, performing backups, and monitoring system performance. They may also mentor junior administrators, handle escalated technical issues, and contribute to IT policy and planning. System Administrator IIIs play a critical role in ensuring the reliability, security, and efficiency of IT operations within an organization.

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

To thrive as a System Administrator III, you need advanced knowledge of operating systems, networking, server management, and typically a bachelor's degree in computer science or a related field. Experience with virtualization platforms, scripting languages (such as PowerShell or Bash), and certifications like CompTIA Server+, Microsoft Certified: Windows Server, or Red Hat Certified Engineer are highly valued. Strong problem-solving, communication, and organizational skills help distinguish top professionals in this role. These abilities are crucial for ensuring system reliability, efficient troubleshooting, and secure, seamless IT operations.

What is the difference between System Administrator Iii vs Network Administrator?

AspectSystem Administrator IiiNetwork Administrator
CertificationsCompTIA Network+, Microsoft Certified Solutions Expert (MCSE)CompTIA Network+, Cisco CCNA
Work EnvironmentData centers, server rooms, enterprise IT environmentsNetwork operations centers, office networks, infrastructure setups
ResponsibilitiesServer management, system updates, security, troubleshootingNetwork configuration, monitoring, troubleshooting, security

The System Administrator Iii and Network Administrator roles share certifications and work environments related to IT infrastructure. However, the System Administrator Iii typically manages servers and enterprise systems, while the Network Administrator focuses on network infrastructure and connectivity. Both roles are essential in maintaining organizational IT operations, but their core responsibilities differ based on system versus network management.

How does a System Administrator III typically collaborate with other IT teams to ensure system reliability?

As a System Administrator III, you will often work closely with network engineers, security analysts, and application support teams to maintain and improve system reliability. This collaboration may involve jointly diagnosing complex issues, coordinating software updates, and implementing new security protocols. You’ll attend regular cross-departmental meetings to align on infrastructure changes and may lead troubleshooting sessions during critical incidents. Effective communication and documentation skills are essential, as you’ll serve as a bridge between technical teams and management, ensuring seamless operations.
More about System Administrator Iii jobs
What cities are hiring for System Administrator Iii jobs? Cities with the most System Administrator Iii job openings:
What states have the most System Administrator Iii jobs? States with the most job openings for System Administrator Iii jobs include:
What job categories do people searching System Administrator Iii jobs look for? The top searched job categories for System Administrator Iii jobs are:
System Administrator Iii jobs near you
Infographic showing various System Administrator Iii job openings in the United States as of July 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, 1% Temporary, and 2% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution, with an average salary of $88,927 per year, or $42.8 per hour.
System Administrator III - Linux

System Administrator III - Linux

GAMA-1 Technologies

Key Biscayne, FL • On-site

Full-time

Medical, Life, Retirement, PTO

Posted 4 days ago

New

Job description

About the Opportunity

The Systems Administrator III - Linux administers, secures, and optimizes enterprise Red Hat Enterprise Linux (RHEL) environments across on-premises, virtual, and cloud-based infrastructures in a remote and on-site work environment. This role supports system reliability, performance, automation, patch management, vulnerability remediation, and identity management integration while ensuring the security and availability of mission-critical systems. Working closely with cross-functional teams, the Linux Systems Administrator supports secure, scalable infrastructure operations and cloud migration initiatives.

Success in this role is demonstrated through maintaining secure, highly available Linux environments, implementing automation and security improvements, resolving complex technical issues, ensuring compliance with federal and organizational requirements, and collaborating effectively to support mission and business objectives.

What You Will Do in This Role

The Systems Administrator III - Linux administers, secures, maintains, and optimizes enterprise Red Hat Enterprise Linux (RHEL) environments across physical, virtual, and cloud infrastructures, ensuring secure, highly available, and scalable systems through automation, patching, vulnerability management, identity integration, and cross-functional collaboration.


 
  • Administer, configure, maintain, and optimize enterprise Linux environments, with a primary focus on Red Hat Enterprise Linux (RHEL) systems across physical, virtual, and cloud infrastructures, supporting secure, scalable, and highly available IT services.
  • Develop and maintain Linux operating system configurations, enterprise architecture solutions, standards, and detailed documentation covering system architecture, configurations, automation processes, procedures, and troubleshooting activities.
  • Implement and maintain Linux configuration management, patch management, system hardening, security controls, and vulnerability remediation in accordance with organizational and federal requirements.
  • Integrate Linux systems with enterprise identity and access management solutions, including Microsoft Active Directory and Microsoft Entra ID.
  • Monitor system performance, troubleshoot complex technical issues, conduct root cause analysis, and implement corrective actions to ensure system reliability and availability.
  • Conduct vulnerability assessments, evaluate security findings, coordinate remediation efforts, and support compliance audits and regulatory requirements.
  • Support infrastructure automation initiatives and develop/maintain automation solutions using Infrastructure as Code (IaC) tools such as Terraform and Ansible, and scripting languages including Python, PowerShell, Bash, and others.
  • Support and optimize virtualized and cloud-hosted environments, including VMware, Microsoft Azure, and AWS, while evaluating and recommending technologies that improve performance, security, scalability, and operational efficiency.
  • Collaborate with network, cloud, cybersecurity, application, and end-user support teams, and provide technical reporting and status updates to the onsite Federal IT Lead and stakeholders.

What You Will Bring

  • Bachelor’s degree in Computer Science, Information Technology, or related field, or equivalent combination of education and experience.
  • 8+ years of Linux systems administration experience.
  • 5+ years of experience supporting Red Hat Enterprise Linux (RHEL) environments.
  • Experience integrating Linux systems with Active Directory, Microsoft Entra ID, or enterprise Identity and Access Management (IAM)/Identity, Credential, and Access Management (ICAM) platforms.
  • Experience working within federal compliance frameworks, including NIST and FISMA, and supporting vulnerability management and security control requirements.
  • Experience with Infrastructure as Code (IaC) and automation tools, including Terraform, Ansible, Python, and PowerShell.
  • Experience supporting cloud environments, including Microsoft Azure and Amazon Web Services (AWS), in production environments.

Work authorization/security clearance requirements

  • Ability to obtain a security clearance.

Work Environment

  • This work is normally completed in a remote and on-site environment.

Physical Demands

  • Prolonged periods of sitting at a desk and working on a computer.
  • Must be able to access and navigate each department at the organization's and client facilities.

Travel Required

  • Travel may be required on an as-needed basis. 

Proficiency Requirement

  • The employee is expected to demonstrate proficiency in all essential job functions, tools, and processes related to this position within the first 90 days of employment. This includes acquiring a thorough understanding of job-specific responsibilities, systems, and workflows as outlined during onboarding and training. Failure to meet this requirement may result in additional training, reassessment, or other actions as deemed necessary by management.

GAMA-1 also offers a variety of benefits, including health insurance coverage, life and disability insurance, 401(k) savings plan, training and career development opportunities, paid holidays and paid time off (PTO - to cover vacation, illness or disability, appointments, emergencies or other situations that require time off from work). For more information click here.

ABOUT GAMA-1

GAMA-1 is a rapidly growing technology business that is based in Greenbelt, Maryland. GAMA-1 Technologies provides strategic information assurance, information security, and business enterprise and networking solutions to the Federal Government. Our success is based on the utilization of industry and agency standards, establishment of standardized processes, and IT Services expertise. At GAMA-1, we believe employees should grow, achieve, and develop just as the company grows, achieves, and develops. GAMA-1 is committed to providing our employees with opportunities for career advancement throughout their employment. For more information, visit www.gama1tech.com

GAMA-1 is an Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to: veteran status, uniformed servicemember status, race, color, religion, sex, sexual orientation, gender identity, age, pregnancy (including childbirth, lactation and related medical conditions), national origin or ancestry, citizenship or immigration status, physical or mental disability, genetic information (including testing and characteristics), domestic violence victims, political orientation, status as a smoker or tobacco user, hairstyle, use of a service animal, education status, familial status, HIV/AIDS status, height, weight, reproductive healthcare decisions or any other category protected by federal, state or local law.