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System Administrator Level 3 Jobs (NOW HIRING)

EOA Technologies LLC

Job Type Full-time Description EOA Technologies is seeking a Systems Administrator on one of our ... IAT Level 2 Certification * AWS cloud resources, including EC2, S3, VPC, IAM, and other core ...

GRVTY

Systems Administrator Level 3

Fort George G Meade, MD · On-site

$139K - $149K/yr

The System Administrator will provide High Performance Computing (HPC) services in the form of HPC ... DoD 8570 IAT II level certification * B.S. in a technical discipline and 10 years' experience as a ...

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How much do system administrator level 3 jobs pay per year?

As of Jul 7, 2026, the average yearly pay for system administrator level 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.

What is a system administrator III?

A System Administrator Level 3 is a senior IT professional responsible for managing and maintaining complex computer systems, networks, and servers. They often handle advanced troubleshooting, system upgrades, security, and may oversee junior staff, requiring strong technical skills and relevant certifications like CompTIA Server+ or Cisco CCNA.

What is a System Administrator Level 3 job?

A System Administrator Level 3 is a senior IT professional responsible for managing, troubleshooting, and optimizing an organization's IT infrastructure. They handle advanced system configurations, security protocols, and network administration while also mentoring junior administrators. Their duties often include server maintenance, cloud integration, disaster recovery planning, and ensuring system availability. Strong expertise in operating systems, scripting, virtualization, and cybersecurity is required.

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 system management, troubleshooting, and supporting complex IT environments, often requiring expertise in networking, scripting, and security tools.

What are the key skills and qualifications needed to thrive in the System Administrator Level 3 position, and why are they important?

A System Administrator Level 3 requires advanced expertise in operating systems (Windows, Linux), networking, server hardware, virtualization, and scripting, usually backed by a bachelor's degree and several years of professional experience. Familiarity with tools like VMware, Active Directory, PowerShell, cloud platforms (AWS, Azure), and certifications such as Microsoft Certified: Azure Administrator or CompTIA Server+ are highly valued. Strong problem-solving abilities, effective communication, and the capacity to manage high-pressure situations distinguish top performers. These competencies ensure critical systems remain available, secure, and scalable to support business operations.

Will AI replace sysadmin jobs?

AI is unlikely to fully replace System Administrator Level 3 roles, as these jobs require complex problem-solving, system configuration, and security management that currently depend on human expertise. AI tools can assist with automation and routine tasks, allowing sysadmins to focus on more strategic responsibilities, but human oversight remains essential for critical decision-making and troubleshooting. Continuous learning and certification in emerging technologies help sysadmins stay relevant in an evolving automation landscape.

What are some typical daily responsibilities for a System Administrator Level 3?

As a System Administrator Level 3, your daily tasks often include configuring and maintaining servers, monitoring system performance, troubleshooting complex technical issues, and deploying system updates or security patches. You will frequently collaborate with IT teams to architect new solutions and ensure high system availability and data integrity. Additionally, you'll handle escalated support tickets that demand advanced troubleshooting skills and may mentor junior administrators. This role requires both hands-on technical work and strategic planning to maintain a secure and efficient IT environment.

Is sysadmin a stressful job?

System administrators at level 3 often face stressful situations due to the critical nature of maintaining network security, uptime, and resolving complex technical issues quickly. The role can involve long hours, on-call responsibilities, and high-pressure problem-solving, especially during system outages or security breaches. However, stress levels vary depending on the work environment, support systems, and individual skills.
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System Administrator Level 3 jobs near you
Infographic showing various System Administrator Level 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.

SYSTEMS ADMINISTRATOR LEVEL 3

EOA Technologies LLC

Fort George G Meade, MD

Other

Re-posted 6 days ago

Job description

Description

EOA Technologies is seeking a Systems Administrator on one of our subcontracts. This is a full-time position offering the opportunity to support a U.S. Government customer. You will be responsible for:

  • Provide administration and support for Windows Server 2019 and 2022 environments, including Active Directory, DNS, Certificate Authorities and manage Windows 10/11 client systems.
  • Administer and troubleshoot various Linux distributions (e.g., RHEL8/9, AmazonLinux 2023) within AWS.
  • Deploy, and maintain robust cloud environments, primarily within AWS, while also supporting existing on-premises server infrastructure.
  • Develop, implement and maintain automation scripts and configurations using SaltStack, Ansible, Bash and Python to streamline infrastructure provisioning, configuration management and deployment processes

Requirements

To be considered for this position you must have the following:

  • Possess an active TS/SCI with Polygraph security clearance
  • IAT Level 2 Certification
  • AWS cloud resources, including EC2, S3, VPC, IAM, and other core services
  • SaltStack, Ansible, Bash and Python 
  • Windows Server 2019 and 2022 environments
  • Linux distributions (e.g., RHEL8/9, Amazon Linux 2023) within AWS
  • Fifteen (15) years' experience as a SA in programs and contracts of similar scope, type, and complexity is required
  • Bachelor's degree in a technical discipline from an accredited college or university is required, or, Five (5) years of SA experience may be substituted for a bachelor's degree. 

Employment decisions are based solely on qualifications, merit, and business needs - not on any protected characteristic. EOA Technologies, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, ancestry, marital status, religious affiliation, hairstyle, or any other characteristic protected by federal, state or local laws. EOA is committed to providing reasonable accommodations when feasible to individuals with disabilities.

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