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Network And System Administrator Jobs (NOW HIRING)

MANTECH

Network System Administrator

El Segundo, CA

$74K - $100K/yr

The Network/System Administrator (NSA) -III will leverage their strong technical background and knowledge to support Special Access Programs (SAPs) and other classified networks supporting SSC ...

MANTECH

Network System Administrator

El Segundo, CA

$74K - $100K/yr

The Network/System Administrator (NSA) -III will leverage their strong technical background and knowledge to support Special Access Programs (SAPs) and other classified networks supporting SSC ...

ManTech

Network System Administrator

El Segundo, CA · On-site

$107K - $179K/yr

The Network/System Administrator (NSA) -III will leverage their strong technical background and knowledge to support Special Access Programs (SAPs) and other classified networks supporting SSC ...

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How much do network and system administrator jobs pay per year?

As of Jun 12, 2026, the average yearly pay for network and system administrator in the United States is $83,055.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,000.00 and $94,500.00 per year, depending on experience, location, and employer.

What is a typical sysadmin salary?

The average salary for a network and system administrator in the United States ranges from $60,000 to $90,000 annually, depending on experience, certifications, and location. Entry-level positions may start lower, while experienced sysadmins with certifications like CompTIA or Cisco can earn higher salaries, especially in larger organizations or tech hubs.

What are Network and System Administrators?

Network and System Administrators are IT professionals responsible for managing, maintaining, and supporting an organization's computer networks and systems. They ensure the smooth operation, security, and reliability of servers, network devices, and related infrastructure. Their duties typically include installing and configuring hardware and software, monitoring system performance, troubleshooting issues, and implementing security measures. These administrators play a critical role in keeping businesses connected and minimizing downtime. They may also provide technical support and guidance to other staff within the organization.

Is sysadmin entry level?

A network and system administrator role is typically not entry-level; it usually requires several years of experience, technical skills, and knowledge of operating systems, networking, and security. Entry-level positions in IT may be labeled as help desk or support technician, with advancement to sysadmin roles as skills develop and certifications like CompTIA Network+ or Cisco CCNA are obtained.

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

To thrive as a Network and System Administrator, you need a solid understanding of networking protocols, operating systems, server management, and a degree in computer science or a related field. Familiarity with tools like Cisco routers, Windows/Linux servers, network monitoring software, and certifications such as CompTIA Network+, CCNA, or Microsoft Certified: Windows Server are highly valued. Strong problem-solving abilities, attention to detail, and effective communication are crucial soft skills in this role. These competencies ensure secure, efficient, and reliable IT infrastructure that supports organizational goals and minimizes downtime.

What is the difference between Network And System Administrator vs Network Engineer?

AspectNetwork And System AdministratorNetwork Engineer
CertificationsCompTIA Network+, Cisco CCNA, Microsoft certificationsCCNA, CCNP, Cisco certifications
Work EnvironmentManage and maintain existing network and system infrastructureDesign, implement, and optimize network solutions
Employer & Industry UsageIT departments across various industries, focusing on daily operationsNetworking design firms, large enterprises, focusing on network development

Network And System Administrators focus on maintaining and supporting existing network and system infrastructure, ensuring smooth daily operations. Network Engineers, on the other hand, primarily design and implement new network solutions. While both roles require similar certifications and work environments, their core responsibilities differ, with administrators managing ongoing operations and engineers focusing on network development and optimization.

Can I become a sysadmin without a degree?

Network and system administrators can often enter the field without a formal degree by gaining relevant certifications such as CompTIA Network+ or Cisco CCNA, and developing practical skills through hands-on experience with operating systems, networking, and security tools. Employers may prioritize skills and certifications over formal education, especially for entry-level positions.

What does a network and systems administrator do?

A network and systems administrator manages and maintains an organization’s computer networks, servers, and systems to ensure reliable operation and security. They configure hardware and software, troubleshoot issues, implement security measures, and often use tools like network monitoring software and command-line interfaces. Certifications such as CompTIA Network+ or Cisco CCNA can enhance their qualifications.

What are some common challenges Network and System Administrators face in balancing security and user accessibility?

Network and System Administrators often encounter the challenge of maintaining robust security measures while ensuring users can access the resources they need without unnecessary barriers. Striking this balance requires implementing strong authentication protocols, monitoring for vulnerabilities, and regularly updating permissions, all while educating users about best practices. Administrators must also routinely collaborate with other departments to understand workflow needs and adjust configurations accordingly. This ongoing process is essential for protecting sensitive data without hindering organizational productivity.
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Network And System Administrator jobs near you
Network System Administrator

Network System Administrator

MANTECH

El Segundo, CA

$74K - $100K/yr

Full-time

Posted 7 days ago

ManTech rating

8.8

Company rating: 8.8 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

32nd of 188 rated software companies

Job description

MANTECH seeks a motivated, career and customer-oriented Network/System Administrator (NSA) -III to join our team in El Segundo, CA .

The Network/System Administrator (NSA) -III will leverage their strong technical background and knowledge to support Special Access Programs (SAPs) and other classified networks supporting SSC Directorates and/or AFSPC Operational Units. This role supports day-to-day operations for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) activities in a five-day-a-week, in-office environment.

Responsibilities include but are not limited to:

  • Install, maintain, audit, and support a secure MS Windows network environment, file servers, firewalls, and network access while troubleshooting anomalies to ensure optimum performance.
  • Maintain internet applications and protocols including IP, TCP, HTTP, HTTPS, FTP, and SSL.
  • Interface directly with local customers and IT staff to provide technical guidance and quickly resolve network or desktop support issues.
  • Perform periodic system maintenance, hardware upgrades and replacements, firmware updates, and system configuration changes.
  • Manage the scheduled data backup library, including executing tape backups and arranging safe storage at customer locations or off-site facilities.
  • Prepare systems for operational use, support operational tests, and attend planning and requirements meetings with program managers and stakeholders.
  • Must meet position and certification requirements outlined in DoD Directive -M for Information Assurance Technician Level 2 (IAT Level II) within 6 months of hire (e.g., Security+ CE, CCNA, CySA+, CND).

Minimum Qualifications:

  • Bachelor’s degree in a related technical area; an additional 4 years of related experience might be substituted for a degree.
  • 6+ years of total related experience
  • 4+ years of relevant SCI or SAP experience.

Preferred Qualifications:

  • Thorough knowledge of Microsoft Windows Server (2000/2003/2007), Microsoft Exchange Server 2003, and Windows XP/Vista operating systems administration and associated hardware.
  • Applicable Windows professional certifications based on OS requirements for the supported organization.
  • Working knowledge of Local Area Network (LAN) and Wide Area Network (WAN) technologies, data backup systems, and communication security (COMSEC) integration.
  • Working knowledge of JAFAN 6/0, DCID/JAFAN 6/3, DCID/JAFAN 6/9, and Joint DODIIS/Cryptologic SCI Information Systems Security Standards, Common Criteria, and System Security Policy as they relate to C&A for legacy systems.
  • Experience with PL1 & PL2 systems, familiarity with PL3 & PL4 cross-domain solutions, and deep familiarity with security policies, manual ICDs, JAFANs, and DoD Manuals.

Clearance Requirements:

  • An active Top Secret clearance with SCI eligibility is required to start.
  • Applicants must be eligible for access to Special Access Programs (SAPs).
  • Must have a willingness to submit to a Counterintelligence polygraph examination.

Travel:

This role requires regular travel within the organizational Area of Responsibility, which may include both air and ground transportation.

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time in closed-area offices.
  • Must be able to lift up to 50 pounds.
  • Need to occasionally move about inside and outside the office to access files, cabinets, or safes, and to install or remove computer-related equipment.

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