System Network Administrator

Leidos LLC; Maryland; On-site; USD 51,000 - 92,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with company match

Flexible schedules

Discounted Stock Purchase Plans

Technical Upskilling

Education and training support

Parental paid leave

Job summary

Leidos is seeking a System Network Administrator to support IT systems, including server, storage, network, and mobile devices. You will perform Tier I/II support, monitor operations, and help resolve technical issues while providing excellent customer service to internal users.

Responsibilities include on-site support, documentation of procedures, system updates, and coordination with agency management. A TS/SCI with Poly is required along with a technical degree and relevant certifications.

Qualifications

• Bachelor’s degree in a technical discipline from an accredited college or university is required.
• Clearance must have TS/SCI with Polygraph; five years may substitute for a bachelor’s degree.
• Certifications: Security+, MTA-IT, MCSA/MCITP, Net+, Storage+ or equivalent.

Responsibilities

• On-site support from 0800–1600 Monday through Friday.
• Provide Tier 1 and Tier 2 problem identification, diagnosis and resolution.
• Support day-to-day operations for client/server/storage/network devices and mobile devices.
• Develop and update SOPs and troubleshooting procedures.
• Manage IT system configuration and operations, and document status for management.

Skills

IT support

Help desk

Windows/Linux admin

Virtualization

Customer service

Education

Bachelor's degree

Tools

PKI

VPN

VMware

Windows Server

Linux

Job description

Leidos has a new and exciting opportunity for a System Network Administrator in our Intelligence Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Job Description: Provides support for implementation, troubleshooting and maintenance 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. 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 Virtual and storage environments; Linux, UNIX and Windows operating systems; install/loads operating system software, troubleshoots, maintains integrity; and configures virtual, storage and network components along with implementing operating systems enhancements to improve reliability and performance. The System/Network Administrator supports the IT requirements of users in the headquarters building and in the enterprise. Provide exceptional customer service and professionalism in support of Field organization users, while being willing to learn, also be willing to be flexible, and be able to manage multiple priorities. The successful candidate will work within a small less than 10 people supporting the customer’s Service Desk to manage IT systems infrastructure and any process related to these systems.

Responsibilities

• On site support from 0800-1600 Monday through Friday
• Provide support for Implementation, troubleshooting, and maintenance for IT systems
• Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems
• Provide assistance to users in accessing and using IT systems
• Unlock user accounts, reset passwords, assist with PKI import/renewal, perform file transfers, create accounts, perform data transfer agent responsibilities, resolve VPN account issues, provide accesses.
• 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.
• Develop and update documentation for SOP’s and troubleshooting procedures.
• Provides Tier 2 (Escalation) problem identification, diagnosis and resolution
• Perform System Troubleshooting & Updates: Identify and resolve system issues, apply configuration changes, and install necessary patches for applications and operating systems.
• Optimize System Performance: Conduct resource utilization assessments, improve operational efficiency, and plan for system capacity expansion.
• Manage the daily activities of configuration and operations of IT systems
• Contribute to technical contract deliverables like weekly/monthly reports, etc.
• Provide support for the escalation and communication of status to agency management and internal customers
• Use a ticketing system, document repository, and customer tools and applications.

Basic Qualifications

No demonstrated experience is required. Bachelor’s degree in technical discipline from an accredited college or university is required. Clearance must have TS/SCI with Polygraph. Five years may be substituted for a bachelor’s degree.

Candidate shall currently possess and maintain one of the following certifications: Updated COMP TIA Security Plus Microsoft Technology Associate-IT Infrastructure (MTA-IT) or; Microsoft Certified Solutions Associate – Desktop (MCSA-DT) Windows 7 or; Microsoft Certified Solutions Associate – Desktop (MCSA-DT) Windows 8 or; Microsoft Certified IT Professional – Windows Client (MCITP-Client) Desktop Support Tech on Windows 7 or; Microsoft Certified IT Professional – Windows Client (MCITP-Client) Desktop Admin on Windows 7 Computer Technology Industry Association. A+ (A+) or; Computer Technology Industry Association - Network + (Network+) or; Computer Technology Industry Association - Storage + (Storage +) or;

For us, helping you grow your career is good business. We look forward to learning more about you.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay Range: Pay Range $50,700.00 - $91,650.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Original Posting: October 2, 2026