8,239 Network Administrator jobs in the United States

• At least two years of college education or 1-2 years of experience in the IT field.
• Familiarity with desktop support for Windows, Linux, and Unix systems.
• Eagerness to grow into systems and network administration responsibilities.
• Experience in installing, configuring, and maintaining operating systems, software, and hardware.
• Ability to monitor system performance and troubleshoot issues effectively.
• Basic knowledge of network infrastructure and system security principles.
• Strong problem-solving and analytical skills.
• Effective collaboration skills for working with senior engineers on system design and implementation.
• Ability to document system configurations and procedures accurately.
• Technical support experience, resolving system-related issues for end-users.

• Bachelor's degree in Information Technology, Computer Science, or a related field.
• Certifications such as CompTIA A+/Network+/Cloud+/Linux+ or Microsoft Associate-level certifications.
• Understanding of networking, operating systems (Windows, Linux), and server management.
• Skills in troubleshooting hardware, software, and network issues.
• Familiarity with scripting languages (e.g., PowerShell, Bash).
• Knowledge of virtualization technologies (e.g., VMware, Hyper-V).
• Experience with cloud services (e.g., AWS, Azure).
• Awareness of cybersecurity principles and best practices.
• Programming or scripting skills (a plus).

• Flexibility to work varying shifts (e.g., 6 AM-2 PM, 7 AM-3 PM, 2 PM-10 PM, etc.).

Job Description

Are you ready to apply cutting-edge technologies to solve real world problems? Do you thrive in an environment where people leverage technology and processes to build innovative and sustainable solutions? You might just be a perfect fit for the CDO team. Since 1995, CDO Technologies has delivered the best solutions for unique business problems in the commercial and federal sectors ranging from Asset Management to IT Services. CDO employees demonstrate integrity, embrace teamwork, and embody a Can Do attitude in the delivery of superior customer service.

Position Summary:

CDO Technologies is looking for a skilled Senior System/Network Administrator to join our team, leading internal IT operations and supporting Managed Services for our commercial sector clients. The Senior System/Network Administrator is responsible for directing all internal Information Technology (IT) related activities of the organization and for oversight, deployment, and support of Managed Services for the commercial sector. This includes managing and maintaining corporate systems and network for both internal and external customers, managing all desktop, laptop and other related hardware and software support activities in a corporate environment, and ensuring continuity of computer and telephony services throughout the organization through planning, technical leadership, and project coordination. Most work is completed during regular business hours, but must have availability to be on call and work outside of normal duty hours as customers may require emergency assistance.

Primary Duties/Responsibilities:

• Responsible for the day-to-day operation.
• Responsible for leading, organizing tasks into manageable activities, and daily tasking of team members.
• Organize, install, and support the organization’s computer systems, including local area networks (LANs), wide area networks (WANs), network segments, intranets, and other data communication systems, as required.
• Install network hardware and software and make needed upgrades and repairs
• Maintain network and computer system security and ensure that all systems are operating correctly
• Collect data in order to evaluate and optimize network or system performance
• Ensure that email and data storage networks work properly.
• Determine and maintain goals of IT within broad outlines provided by the executive management and contribute to the continuity of IT services by providing necessary technical leadership and project coordination.
• Enforce company policies, procedures, and processes as related to IT and Managed Service activities.
• Forecast costs, equipment and personnel needs for projects and programs as required and related to IT and Managed Service operations.
• Prepare long and short range plans for application selection, systems development and acquisition of the resources needed to support them. Assure responsiveness of long-range plans to corporate objectives.
• Establish and maintain professional relationships with contractors and vendors.
• Management of help desk and ensure that all Service Level Agreements (SLA’s) are being met.
• Maintain communication with all Managed Service customers to ensure optimal customer satisfaction
• Monitor hour usage and forecast monthly invoices of Managed Service customers.

• Maintain depth and coverage for all areas of IT staff responsibility.
• Resolve issues related to client relations and project quality, risk, and safety
• Ensure proper documentation and configuration management required of products, network, and projects are complete and accurate.

• Research, understand, and recommend new technologies.

• Takes initiative to learn new technologies and skills through formal and informal means.

• Other duties as assigned.

Qualifications/Skill and Knowledge:

Minimum Qualifications:

• 7 years’ hands-on experience in related duties.
• Leadership experience.
• Sound understanding of current applications and trends in IT.
• Ability to analyze information related to computer technology to assist in directing company management in the selection of software and hardware to meet the needs of the organization.
• Strong inter-personal skills, good judgment and ability to communicate effectively with a diverse range of technical and non-technical individuals.
• Ability to effectively prioritize and manage multiple tasks.
• Able to set priorities and adapt to change.

• Ability to work independently or with minimal supervision.
• Experience with or demonstrated knowledge of backup systems.
• Demonstrated experience in Windows Server systems.
• Demonstrated experience with MS Exchange.
• Demonstrated experience in window operating systems.
• Experience with or demonstrated knowledge of Cisco access points, switches, routers, and firewalls, SonicWall firewalls, and Barracuda spam and web filter appliances.
• Experience with Two-Factor Authentication, Active Directory, and Certificate Services.
• Experience with or demonstrated knowledge of Virtualization, primarily Hyper-V with some VMware support.
• Experience with Cisco’s IOS and ability to stand up/support Cisco networking equipment.
• Hands-on technology support experience including desktops, laptops, mobile devices, printers, and peripherals, in a corporate environment.
• Must be able to lift 50 pounds.
• Climb a ladder and install equipment.
• Work in small and/or confined spaces.
• Requires bending down and working under desks.

Desired Qualifications:

• Bachelor’s degree in IT, engineering, or other technical discipline.
• Experience with or demonstrated knowledge of the Cybersecurity Maturity Model Certification (CMMC) assessment framework and assessor certification program.
• Experience with Veeam software.

What a CDO employee can expect:

At CDO Technologies, we believe in taking care of our employees with a comprehensive benefits package. Our health and welfare benefits include two medical plan options along with a LiveHealth program to see a doctor online anytime day or night. CDO offers dental, vision, and a Flexible Spending Account for medical or childcare. Employees may also enroll in a 401(k) plan with their first paycheck. Full-time employees also receive company paid short- and long-term disability and life insurance. We also provide tuition reimbursement, professional development, and certification reimbursements. Finally, CDO also offers employees a generous leave program including paid holidays, vacation, and sick leave.

CDO's total compensation for each position is set within an established range. The final compensation will be determined by demonstrated skills and experience.

CDO is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender identity, sexual orientation, national origin, disability, or veteran status.

A client of Innova Solutions is immediately hiring for a System and Network Administrator.

Position Type: Full-Time Contract
Duration: 12 months
Location: El Segundo, CA

As a System and Network Administrator you will:

• Provides Factory Floor support to multiple Programs, defining & documenting Test setups, Deploying Test Software & Configurations, Troubleshooting, communicating/coordinating program requests, and supporting requests from the team to improve effectiveness, efficiency, productivity
• Develops, implements, and sustains tools that enable product security requirements
• Utilizes agile methodologies to plan, execute, and track product security statement of work
• Develops and enhances system requirements and architectures for product security to meet all applicable certification and customer requirements
• Configures and ensures security of facilities, equipment, tools, data, networks, and resources used for product: design, development, build, test, storage, delivery, operations, and support

• Bachelor's degree from an accredited course of study, in engineering, computer science, mathematics, physics or chemistry, or equivalent experience.
• Current CompTIA Security+ certification
• Current CompTIA Network+ certification
• Experience in Operating Systems: Windows Server, RedHat Enterprise Linux, Oracle Enterprise Linux, and Cisco IOS
• Experience in VMWare Virtualization
• Experience in Enterprise Storage

• ITIL 4 certification
• Cisco Certified Network Associate (CCNA) certification
• Experience in Satellite Test and STE Operations Readiness
• Experience in Cyber Security
• Experience in Redhat and Oracle Linux servers, Windows XP - Windows 7,10, 11 OS and network-based storage system
• Experience in certifying PTEX (Payload Test Executive) and MTEX (Modular Test Executive) Test Servers
• Experience in certifying Automated Test Controller (ATC) Server and Client

• Named One of America's Best Employers for New Grads by Forbes (2024)
• Named One of the Best Companies to Work for by U.S. News & World Report (Private Companies List, 2024-2025)
• One of the Largest IT Staffing Firms in the US - Ranked #3 by Staffing Industry Analysts (SIA, 2024)
• One of the Largest Staffing Firms in the US - Ranked #13 by Staffing Industry Analysts (SIA, 2024; includes Innova Solutions, Volt, & HireGenics)
• Named One of the Top Ten Private Companies in Atlanta by the Atlanta Business Chronicle (2023)
• One of the Largest Certified Minority Business Enterprises (MBEs) in the United States (NMSDC, 2024)
• AWS Advanced Tier Services Partner with 100+ certifications

Zachary Piper Solutions is seeking a Mid-Level System and Network Administrator to join a Space Systems Verification and Test team in El Segundo, CA. This 100% onsite role supports 24/7 test operations, including setup, deployment, and readiness of Special Test Equipment in factory and launch environments.

Key Responsibilities:

• Support factory floor test operations and deploy test software/configurations.
• Troubleshoot and improve system effectiveness and efficiency.
• Develop tools and ensure security for test environments.
• Use agile methods to manage product security requirements.
• Participate in system hardening and readiness for satellite testing.

• Bachelor's in engineering, computer science, or related field.
• CompTIA Security+ and Network+ certifications.
• Experience with Windows Server, RedHat/Oracle Linux, Cisco IOS, VMware, and enterprise storage.

• ITIL 4, CCNA, and experience in satellite test operations and cybersecurity.
• Familiarity with PTEX, MTEX, and ATC test systems.

• Location: El Segundo, CA
• Travel: Possible 5-10%
• Compensation: $120,000- $135,000 ( based on experience)/ Paid Holidays/PTO/Medical Benefits/401k

A client of Innova Solutions is immediately hiring for a System and Network Administrator.

Position Type: Full-Time Contract
Duration: 12 months
Location: El Segundo, CA

As a System and Network Administrator you will:

• Provides Factory Floor support to multiple Programs, defining & documenting Test setups, Deploying Test Software & Configurations, Troubleshooting, communicating/coordinating program requests, and supporting requests from the team to improve effectiveness, efficiency, productivity
• Develops, implements, and sustains tools that enable product security requirements
• Utilizes agile methodologies to plan, execute, and track product security statement of work
• Develops and enhances system requirements and architectures for product security to meet all applicable certification and customer requirements
• Configures and ensures security of facilities, equipment, tools, data, networks, and resources used for product: design, development, build, test, storage, delivery, operations, and support

• Bachelor's degree from an accredited course of study, in engineering, computer science, mathematics, physics or chemistry, or equivalent experience.
• Current CompTIA Security+ certification
• Current CompTIA Network+ certification
• Experience in Operating Systems: Windows Server, RedHat Enterprise Linux, Oracle Enterprise Linux, and Cisco IOS
• Experience in VMWare Virtualization
• Experience in Enterprise Storage

• ITIL 4 certification
• Cisco Certified Network Associate (CCNA) certification
• Experience in Satellite Test and STE Operations Readiness
• Experience in Cyber Security
• Experience in Redhat and Oracle Linux servers, Windows XP - Windows 7,10, 11 OS and network-based storage system
• Experience in certifying PTEX (Payload Test Executive) and MTEX (Modular Test Executive) Test Servers
• Experience in certifying Automated Test Controller (ATC) Server and Client

• Named One of America's Best Employers for New Grads by Forbes (2024)
• Named One of the Best Companies to Work for by U.S. News & World Report (Private Companies List, 2024-2025)
• One of the Largest IT Staffing Firms in the US - Ranked #3 by Staffing Industry Analysts (SIA, 2024)
• One of the Largest Staffing Firms in the US - Ranked #13 by Staffing Industry Analysts (SIA, 2024; includes Innova Solutions, Volt, & HireGenics)
• Named One of the Top Ten Private Companies in Atlanta by the Atlanta Business Chronicle (2023)
• One of the Largest Certified Minority Business Enterprises (MBEs) in the United States (NMSDC, 2024)
• AWS Advanced Tier Services Partner with 100+ certifications

• Provide hands-on support for factory floor test operations across multiple programs.
• Define and document test setups, deploy test software/configurations, and troubleshoot system issues.
• Coordinate with program teams to fulfill requests and enhance operational efficiency.
• Develop and implement tools to meet product security requirements.
• Apply agile methodologies to manage and track product security tasks.
• Configure and secure facilities, tools, networks, and data used in the design, development, testing, and delivery of space systems.

• Active Top Secret Security Clearance
• Bachelor's degree in Engineering, Computer Science, Mathematics, Physics, Chemistry, or equivalent experience.
• Active CompTIA Security+ and Network+ certifications.
• Proficiency in:
  • Windows Server, RedHat Enterprise Linux, Oracle Enterprise Linux, Cisco IOS
  • VMware Virtualization
  • Enterprise Storage systems
• Strong communication, analytical, and decision-making skills.
• Ability to support 24/7 test operations.

• ITIL 4 and/or CCNA certification.
• Experience with:
  • Satellite Test and STE Operations Readiness
  • Cybersecurity practices and compliance
  • RedHat/Oracle Linux, Windows XP-11, and network-based storage
  • Certifying PTEX and MTEX Test Servers
  • Certifying Automated Test Controller (ATC) Server and Client

• Bachelor's degree with 2+ years of relevant experience, or
• Master's degree with relevant experience in an engineering classification.

E*Pro Consulting offers a range of services including contingent Staff Augmentation of IT professionals, Permanent Recruiting, and Temp-to-Hire solutions. Our expertise spans various industries such as financial services, Insurance, Telecom, Manufacturing, Technology, Media and Entertainment, Pharmaceutical, Healthcare, and Service industries, allowing us to tailor our services to meet specific client needs. For more information, please visit our website at . We have been retained to assist with recruiting for direct hire positions by a leading global organization in information technology consulting, services, and business process outsourcing. This organization pioneered flexible global business practices that enable companies to operate more efficiently and generate greater value. Job Description Title: Network Security Administrator/Engineer Location: McLean, VA Required Skills: Perform administration tasks managing Checkpoint/ASA Firewalls, F5 GTM/LTM, Bluecoat Proxy/Antivirus, IDS, IPS, Gigamon, Infoblox. Familiar with network troubleshooting using sniffer data. Strong troubleshooting abilities. All your information will be kept confidential in accordance with EEO guidelines. #J-18808-Ljbffr

ManTech seeks a motivated, career and customer-oriented Network System Administrator III to join our team in Los Angeles, CA.

The primary function is working with Special Access Program (SAPs) and other classified networks supporting SMC Directorates and/or AFSPC Operational Units. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Responsibilities include but are not limited to:

• Install, maintain, audit and support a secure MS Windows network environment and limited web/data application service.
• Maintain internet applications and protocols IP, TCP, HTTP, HTTPS, FTP, & SSL.
• Maintain file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required.
• Interface with local customers and provide IT related support to quickly resolve problems.
• Perform periodic maintenance, hardware upgrades and replacement, firmware updates and system configuration changes. Perform scheduled tape backups on systems as required.
• Manage data backup library to include storage of tapes, disks and other magnetic media at the customer’s location and off-site storage facilities as required.
• Attend planning and requirements meetings with IT staff, Program Managers and customers as required.
   

Minimum Qualifications:

• Bachelor’s degree in a related area or 4 additional years of experience may be accepted in lieu of degree.
• 6+ years total related experience. 
• 4+ years of relevant SCI experience.
• Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 2 such as CompTIA Security + CE, within 6 months of the date of hire.
• 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.
• Must be familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD Manuals and other guiding policy documents.
   

Preferred Qualifications:

• 2+ years of SAP-related experience highly desired.
• Ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners.
• Working knowledge of Microsoft Office (Word, PowerPoint, and Excel).
• Possess a high degree of originality, creativity, initiative requiring minimal supervision.
• Requires travel within the organizational Area of Responsibility (AOR) (note - could be extensive and will include both air and ground transportation).

Clearance Requirements:

• Current Top-Secret Clearance with SCI Eligibility.
• Eligibility for access to Special Access Program.
• Information Willingness to submit to a polygraph.
   

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
• Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

ManTech seeks a motivated, career and customer-oriented Network System Administrator III to join our team in Los Angeles, CA.

The primary function is working with Special Access Program (SAPs) and other classified networks supporting SMC Directorates and/or AFSPC Operational Units. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Responsibilities include but are not limited to:

• Install, maintain, audit and support a secure MS Windows network environment and limited web/data application service.
• Maintain internet applications and protocols IP, TCP, HTTP, HTTPS, FTP, & SSL.
• Maintain file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required.
• Interface with local customers and provide IT related support to quickly resolve problems.
• Perform periodic maintenance, hardware upgrades and replacement, firmware updates and system configuration changes. Perform scheduled tape backups on systems as required.
• Manage data backup library to include storage of tapes, disks and other magnetic media at the customer’s location and off-site storage facilities as required.
• Attend planning and requirements meetings with IT staff, Program Managers and customers as required.
   

Minimum Qualifications:

• Bachelor’s degree in a related area or 4 additional years of experience may be accepted in lieu of degree.
• 6+ years total related experience. 
• 4+ years of relevant SCI experience.
• Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 2 such as CompTIA Security + CE, within 6 months of the date of hire.
• 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.
• Must be familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD Manuals and other guiding policy documents.
   

Preferred Qualifications:

• 2+ years of SAP-related experience highly desired.
• Ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners.
• Working knowledge of Microsoft Office (Word, PowerPoint, and Excel).
• Possess a high degree of originality, creativity, initiative requiring minimal supervision.
• Requires travel within the organizational Area of Responsibility (AOR) (note - could be extensive and will include both air and ground transportation).

Clearance Requirements:

• Current Top-Secret Clearance with SCI Eligibility.
• Eligibility for access to Special Access Program.
• Information Willingness to submit to a polygraph.
   

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
• Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.