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Systems Administrator 3 Jobs (NOW HIRING)

NAES

Systems Administrator III

Houston, TX · On-site

The Systems Administrator III will manage and secure computer systems across physical and virtual environments, maintain core enterprise systems, and ensure compliance with IT best practices and ...

System One

Systems Administrator III

Indianapolis, IN · On-site

$38.47 - $40.50/hr

Systems Administrator Location: Indianapolis, IN (on-site) Type: Contract Compensation: $38.47/HR ... Bachelor's degree in information systems or relevant field and 3+ years practical experience

Arcfield

Systems Administrator III

Colorado Springs, CO · On-site

Responsibilities The Systems Administrator will work closely with the system administrator team ... Qualifications Required Skills: • BS 5-7 Years, MS 3-5, PhD 0-2 • Must possess the required DoD ...

EMCO Technologies

Systems Administrator 3

Hampton, VA · On-site

EMCO is seeking Systems Administrator to support the Engineering Directorate at the NASA Langley Research Center in Hampton, Virginia. The role is responsible for performing IT systems support in ...

Robert Half

Systems Administrator III

Indianapolis, IN · On-site

$30 - $35/hr

Systems Administrator - Microsoft Intune (PUBLIC TRUST CLEARNANCE) Location: Indianapolis, IN ... Ability to obtain and maintain a Public Trust background investigation. * 3+ years of experience ...

EMCO Technologies

Systems Administrator 3

Norfolk, VA · On-site

EMCO is seeking Systems Administrator to support the Engineering Directorate at the NASA Langley Research Center in Hampton, Virginia. The role is responsible for performing IT systems support in ...

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Systems Administrator 3 information

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$41K

$88.9K

$137.5K

How much do systems administrator 3 jobs pay per year?

As of Jul 14, 2026, the average yearly pay for systems 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.

What is the difference between Systems Administrator 3 vs Systems Administrator 2?

AspectSystems Administrator 3Systems Administrator 2
CertificationsCompTIA Network+, Microsoft Certified: Windows Server FundamentalsCompTIA Network+, Microsoft Certified: Windows Server Fundamentals
Work EnvironmentMid-level IT support, server management, network troubleshootingEntry to mid-level IT support, basic network and server tasks
ResponsibilitiesAdvanced server configuration, network security, scriptingBasic server maintenance, user support, hardware troubleshooting

Systems Administrator 3 typically handles more complex server and network tasks compared to Systems Administrator 2, requiring similar certifications but with increased responsibilities and technical expertise. They often work in environments demanding advanced troubleshooting and configuration, whereas Systems Administrator 2 roles focus on foundational support and maintenance.

What are some common challenges a Systems Administrator 3 might face when managing complex IT infrastructures?

As a Systems Administrator 3, you’ll often be responsible for overseeing a diverse environment with multiple servers, platforms, and cloud integrations. Common challenges include troubleshooting advanced system issues, balancing routine maintenance with urgent escalations, and ensuring high system availability while implementing security best practices. Collaboration with network engineers, security teams, and end-users is frequent, requiring strong communication and problem-solving skills. Staying current with emerging technologies and adapting to evolving organizational needs is also crucial for success in this senior-level role.

What are Systems Administrator 3 roles and responsibilities?

A Systems Administrator 3 is a senior-level IT professional responsible for managing and maintaining an organization's computer systems, servers, and networks. They handle advanced troubleshooting, system upgrades, security configurations, and performance tuning. Additionally, they often lead projects, mentor junior administrators, and ensure systems are reliable, secure, and compliant with organizational policies. Their expertise typically covers complex environments, virtualization, cloud integration, and disaster recovery planning.

What are system administrator jobs?

System administrator jobs involve managing and maintaining an organization’s computer systems, networks, and servers to ensure they run efficiently and securely. These roles typically require skills in troubleshooting, configuring hardware and software, and often involve working with tools like operating systems, network protocols, and security measures. Certifications such as CompTIA Server+ or Microsoft Certified: Windows Server are often beneficial for these positions.

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

To thrive as a Systems Administrator 3, you need advanced knowledge of system architecture, network administration, security protocols, and relevant IT certifications such as CompTIA, Microsoft, or Cisco. Expertise in operating systems (Windows, Linux), virtualization platforms, scripting languages, and monitoring tools is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills help you excel in troubleshooting and collaborating across teams. These skills ensure system reliability, security, and optimal performance in complex IT environments.

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 skills in scripting and familiarity with enterprise tools.

What is a system administrator III?

A Systems 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 may hold certifications like CompTIA Server+ or Cisco CCNA. This role typically involves overseeing system security, performance optimization, and supporting technical staff.

Will AI replace sysadmin jobs?

AI can automate certain tasks performed by systems administrators, such as monitoring, troubleshooting, and routine maintenance, but it is unlikely to fully replace the role. Systems administrators will continue to be essential for managing complex systems, implementing security, and making strategic decisions that require human judgment and expertise. Skills in scripting, automation tools, and cybersecurity remain valuable in this evolving environment.
More about Systems Administrator 3 jobs
What cities are hiring for Systems Administrator 3 jobs? Cities with the most Systems Administrator 3 job openings:
What states have the most Systems Administrator 3 jobs? States with the most job openings for Systems Administrator 3 jobs include:
What job categories do people searching Systems Administrator 3 jobs look for? The top searched job categories for Systems Administrator 3 jobs are:
Systems Administrator 3 jobs near you
Infographic showing various Systems 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.
Systems Administrator 3

Systems Administrator 3

iNovex Information Systems

Annapolis, MD • On-site

$192K - $222K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 7 days ago

Job description

Job Brief
Implementation support, IT systems maintenance and troubleshooting, optimizing system operations
Job Description
RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch industry professionals.
We are searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us!
Job Description:
Provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provides Tier I (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance.
The Level 3 System Administrator shall possess the following capabilities:
  • Provide support for implementation, troubleshooting and maintenance of IT systems.
  • Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
  • Manage the daily activities of configuration and operation of IT systems.
  • Provide assistance to users in accessing and using IT systems.
  • Provide Tier I (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
  • Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc.
  • Provide support for the escalation and communication of status to agency management and internal customers.
  • Optimize system operations and resource utilization and perform system capacity analysis and planning.
  • Provide in-depth experience in trouble-shooting IT systems.
  • Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
  • Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
  • Configure and manage UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
  • Support the design of systems, mission architecture and associated hardware.
  • Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA).
  • Analyze and resolve complex problems associated with server hardware applications and software integration.

Qualifications:
  • 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. Five (5) years of additional SA experience may be substituted for a bachelor's degree.

Position requires active Security Clearance with appropriate Polygraph
Pay Range: 192,000 - 222,000
The RealmOne pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Our approach to crafting offers considers various factors to establish an equitable and competitive compensation package. These considerations include, but are not limited to, the extent and intricacy of the role's responsibilities, the candidate's educational background, their work experience, and the specific competencies crucial for success in the role.
RealmOne Benefits:
  • Healthcare Coverage + Insurance: Medical: Three (3) rich healthcare options through CareFirst with 100% or majority company-paid premiums. Tax-advantaged health savings account available with generous employer contribution. Dental + Vision: 100% employer-paid for employees and family with buy-up option available.
  • Retirement + Savings: 401K - 10% TOTAL CONTRIBUTION - 5% safe harbor - 5% annual profit share. Immediate vested, no match required!
  • Paid Time Off + More: 4 weeks starting PTO - 11 federal holidays + 2 floating holidays - Paid hours for company-required training.
  • Career Growth + Development: Access to FREE 24/7 learning via Udemy - Opportunities to participate in tech councils, industry initiatives, etc. - $7,500 annual Educational & Professional Development Assistance.
  • MORE BENEFITS...FOR EVERY LIFESTYLE! - Paid parental leave - Adoption assistance - Annual swag drops - Flexible work schedules - -Generous referral bonus program - Employee appreciation + family-friendly corporate events ...and much more.

ABOUT US
  • RealmOne is a mid-sized science and technology company dedicated to solving our customers' toughest mission challenges.
  • Headquartered in Columbia, MD., RealmOne supplies advanced cybersecurity, data science and software engineering services and products to customers in the Government and commercial sectors.
  • RealmOne delivers encompassing mission assurance and critical systems support to government customers across various U.S. locations to include Colorado, Georgia, Hawaii, Texas, Utah, and Virginia.
  • RealmOne has earned numerous awards, including being named a Top Workplace by the Baltimore Sun. With more than 30+ active contracts, 12 of which are prime, RealmOne stands as a premier innovator supporting the Government and Department of Defense, with team members located nationwide.

Disclaimer: Benefits packages offered by RealmOne are subject to variation and may differ based on work location, clearance level, and other eligibility criteria. Specific eligibility, availability, and scope of benefits are not guaranteed, may differ from those generally described, and remain subject to modification at the sole discretion of the company.

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