ZipRecruiter

Log In

1

System Administrator 3 Jobs (NOW HIRING)

CHSGa

System Administrator III

Macon, GA · On-site

Microsoft Azure Administrator * CompTIA A+ * CompTIA Network+ * CompTIA Security+ * Strong working knowledge of Microsoft Office Suite and Windows desktop operating systems across computing platforms ...

CHSGa

System Administrator III

Macon, GA · On-site +1

Microsoft Azure Administrator * CompTIA A+ * CompTIA Network+ * CompTIA Security+ * Strong working knowledge of Microsoft Office Suite and Windows desktop operating systems across computing platforms ...

Pae

System Administrator 3

Annapolis, MD · On-site

Amentum is seeking a System Administrator 3 to provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems. Provides support for the escalation and ...

Unisity LLC

System Administrator 3

Annapolis Junction, MD · On-site

$205K - $215K/yr

The Level 3 System Administrator (SA) must possess the following capabilities: * Provide support for implementation, troubleshooting and maintenance of IT systems * Provide Tier 1 (Help Desk) problem ...

Amentum

System Administrator 3

Annapolis, MD · On-site

Amentum is seeking a System Administrator 3 to provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems. Provides support for the escalation and ...

Unisity, LLC

System Administrator 3

Annapolis Junction, MD · On-site

$205K - $215K/yr

The Level 3 System Administrator (SA) must possess the following capabilities: * Provide support for implementation, troubleshooting and maintenance of IT systems * Provide Tier 1 (Help Desk) problem ...

VSolvit

SYSTEM ADMINISTRATOR 3

Ventura, CA · On-site

$120K - $140K/yr

... Information Systems Agency (DISA) servers. * Manage the functional requirements, processes, and workflows. * Administer Secure Cloud Computing Architecture (SCCA) services, including Microsoft ...

next page

Showing results 1-20

All JobsSystem Administrator 3 Jobs

System Administrator 3 information

See salary details

$41K

$88.9K

$137.5K

How much do system administrator 3 jobs pay per year?

As of Jul 11, 2026, the average yearly pay for system administrator 3 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.

How much does a Tier 3 system administrator make?

A Tier 3 system administrator typically earns between $70,000 and $100,000 annually, depending on experience, certifications, and location. They are responsible for advanced troubleshooting, system upgrades, and supporting complex IT environments, often requiring specialized skills and certifications such as CompTIA Server+ or Cisco CCNA.

What is the difference between System Administrator 3 vs Network Administrator?

AspectSystem Administrator 3Network Administrator
CertificationsCompTIA Server+, Cisco CCNA, Microsoft CertifiedCompTIA Network+, Cisco CCNA, Juniper JNCIA
Work EnvironmentData centers, server rooms, enterprise ITNetwork operations centers, office networks, infrastructure
Primary ResponsibilitiesServer management, system updates, troubleshootingNetwork setup, routing, switching, security
Industry UsageIT departments across various industriesTelecommunications, enterprise IT, service providers

The main difference between a System Administrator 3 and a Network Administrator lies in their focus areas. System Administrators primarily manage servers and enterprise systems, while Network Administrators focus on network infrastructure and connectivity. Both roles require similar certifications and often work in overlapping environments, but their core responsibilities differ based on their specialization.

What are system administrator jobs?

System administrator jobs involve managing and maintaining an organization’s computer systems, servers, and networks to ensure they run efficiently and securely. These roles typically require skills in troubleshooting, system configuration, and knowledge of operating systems like Windows or Linux, often supported by certifications such as CompTIA Server+ or Microsoft Certified Systems Administrator (MCSA).

What are some common challenges faced by a System Administrator 3, and how can they be effectively managed?

System Administrator 3 professionals often encounter challenges such as managing complex network infrastructures, ensuring system security, and minimizing downtime. They are typically responsible for advanced troubleshooting and must stay updated on the latest technologies and security threats. Effective management of these challenges involves proactive monitoring, implementing robust backup and disaster recovery plans, and maintaining clear documentation. Collaboration with IT teams and end-users is also key to quickly resolving issues and optimizing system performance.

What are System Administrator 3s?

A System Administrator 3 is a senior-level IT professional responsible for managing, maintaining, and troubleshooting complex computer systems and networks within an organization. They oversee server environments, ensure system security and reliability, and may lead junior administrators or IT teams. Their role often includes planning system upgrades, implementing best practices, and responding to advanced technical issues. Typically, a System Administrator 3 has several years of experience and deep technical expertise in areas such as Windows, Linux, virtualization, and cloud environments.

Will AI replace sysadmin jobs?

AI is unlikely to fully replace system administrators, as their role involves complex problem-solving, system design, and oversight that require human judgment. Instead, AI tools are increasingly used to automate routine tasks, allowing sysadmins to focus on more strategic and advanced responsibilities. Maintaining skills in scripting, cybersecurity, and cloud management remains important for the role.

What is a system administrator III?

A System Administrator III is a senior-level IT professional responsible for managing and maintaining complex computer systems, networks, and servers. They often have advanced skills in scripting, troubleshooting, and security, and may oversee junior staff or projects. Certifications like CompTIA Server+ or Cisco CCNA are common for this role.

What are the key skills and qualifications needed to thrive as a System Administrator 3, and why are they important?

To thrive as a System Administrator 3, you need advanced knowledge of system architecture, operating systems (such as Windows and Linux), networking, and a relevant degree or certifications like CompTIA Server+, Microsoft Certified: Windows Server, or Red Hat Certified System Administrator (RHCSA). Expertise in tools such as VMware, Active Directory, scripting languages (like PowerShell or Bash), and monitoring systems is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills make someone stand out in this role. These skills ensure the reliability, security, and efficiency of IT infrastructure, supporting critical business operations.
More about System Administrator 3 jobs
What cities are hiring for System Administrator 3 jobs? Cities with the most System Administrator 3 job openings:
What job categories do people searching System Administrator 3 jobs look for? The top searched job categories for System Administrator 3 jobs are:
System Administrator 3 jobs near you
Infographic showing various System Administrator 3 job openings in the United States as of July 2026, with employment types broken down into 1% As Needed, 70% Full Time, 25% Part Time, 1% Temporary, and 3% Contract. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $88,927 per year, or $42.8 per hour.

Senior System Administrator III

Varada Consulting

Linthicum Heights, MD • On-site

$84K - $114K/yr

Full-time

Medical, Retirement

Re-posted 3 days ago

Job description

Senior System Administrator III

Job Location-Linthicum, MD

Overview:

Varada Defense is seeking an experienced Sr. Systems Administrator to support mission-critical systems within the Intelligence Community.

As a collaborative member of a small and mostly autonomous team, this position directly supports secure enclave development networks.

Responsibilities:

  • Conduct functional and connectivity testing to ensure continuing operability.
  • Develop and document systems administration standard operating procedures.
  • Maintain baseline system security according to organizational policies.
  • Manage accounts, network rights, and access to systems and equipment.
  • Plan, execute, and verify data redundancy and system recovery procedures.
  • Install, update, and troubleshoot systems and servers.
  • Comply with organization systems administration standard operating procedures.
  • Implement and enforce local network usage policies and procedures.
  • Manage system and server resources including performance, capacity, availability, serviceability, and recoverability.
  • Monitor and maintain system and server configurations.
  • Perform repairs on faulty system and server hardware.
  • Troubleshoot hardware/software interface and interoperability problems.

Required Experience:

  • Bachelor’s degree in a technical discipline and 15 years’ experience as a System Administrator, OR High school diploma and 20 years’ experience as a System Administrator
  • Experience with Windows Sever Administration, Active Directory, and Group Policy
  • Experience with Linux Server Administration
  • Experience with Broadcom VMware/ESXi, Broadcom VMWare Virtual Networking, and Broadcom VMware vCenter
  • Networking Switching and Router Management
  • Storage Management (NetApp)
  • Hardware and Operating System troubleshooting
  • System hardening
  • Security Compliance Scanning (Nessus, ACAS)
  • Understanding of project design within the scope of security (RMF) requirements
  • Active DoD IAT Level II certification (Security+ )
  • Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.
  • Active TS/SCI with Polygraph, CI poly current under 6 yrs

Preferred Qualifications:

  • Experience leading the implementation and support of Broadcom VMware virtualized systems and infrastructure
  • PowerCLI
  • Broadcom VMware Aria Suite, formerly called vRealize Suite
  • Broadcom VMware Cloud Foundation (VCF)
  • Broadcom VMware Certified Professional or other relevant VMware certification.

Join an Award – Winning Team! Voted as the Most Innovative and Fastest Growing Company, Varada Defense offers turnkey solutions in the areas of advanced automation, artificial intelligence, and autonomous technology for DoW and FedCiv space in support of the mission objectives of the federal government. Varada provides competitive compensation and benefits packages, including 100% employer-paid healthcare premiums, matching 401(k), and unlimited education/training.

Varada Defense is an Equal Employment Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status