77 systems administrator jobs found

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: No Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. At the heart of Defining Possible is our commitment to missions....

Bowhead is seeking a highly skilled and experienced Mid-Level Linux System Administrator to join our dynamic IT team. This is a 100% onsite position located in Norco, CA. As a Linux Subject Matter Expert (SME), you will be responsible for the administration, maintenance, and support of our critical Linux-based infrastructure. Experience working within a Department of Defense (DoD) environment is highly desirable. This position is 100% onsite. • Systems Administrator administers and supports daily operational requirem• Linux Systems Administration: Install, configure, and maintain Linux servers (e.g., Red Hat, CentOS, Ubuntu) including operating system installation, patching, and security hardening. • Subject Matter Expertise: Serve as the primary point of contact and subject matter expert for all Linux-related issues, providing guidance and support to other team members. • Performance Monitoring and Optimization: Monitor system performance, identify...

Bowhead seeks an Entry-Level Systems Administrator to join our team supporting the Program Office for NSWC Corona, Corona Division in Norco, California. The Systems Administrator will work for the senior systems administrator analyzing complex and unique technical support assignments and lead or collaborate with other system administrators, cybersecurity personnel, and program analysts within an agile environment. This position is 100% onsite. • The systems administrator administers and supports daily operational requirements of computer network systems including workstation, file servers, and web servers. • Installation of hardware, software, systems upgrades, network accounts, network security, and web page design, interface and updates, and local system design documentation. • Cyber WorkForce (CWF) directives are maintained and up to date with respect to certifications • Maintain, troubleshoot, and implement network security tools including firewalls,...

Saalex  is seeking a  Network and Computer Systems Administrator  in  Ridgecrest, CA.  Saalex is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data Analytics and Business Intelligence Services and Information Technology Services. Position Type:  Full-Time Salary:  $100k-$135k annually (depending upon experience) Work Location:  Full-time onsite. Position Overview: Provides system administration and cybersecurity support for Link Inject to Live (LITL) systems operating within Live, Virtual, and Constructive (LVC) environments. Supports installation, operation, sustainment, and cybersecurity compliance of systems integrating live platforms with simulated training environments in accordance with DoD standards and contract requirements. Key Responsibilities Administer, maintain, and troubleshoot LITL systems and supporting...

Saalex is seeking a Senior Network & Systems Administrator in Ridgecrest, CA to support the design, implementation, security, and sustainment of enterprise network and computing environments. The selected candidate will serve as a technical lead for network infrastructure, cybersecurity compliance, systems administration, and modernization initiatives supporting mission-critical operations. Position Type:  Full-Time Salary:  $105k-$120k annually (depending on experience) Work Location:  Onsite. Ridgecrest, CA. Essential Functions: Design, implement, administer, and troubleshoot enterprise network and computer systems. Support WAN, BAN, LAN, and wireless (Wi-Fi) infrastructure, including routers, switches, firewalls, and related technologies. Lead network modernization, upgrades, patching, firmware updates, and infrastructure sustainment activities. Implement network security controls, system hardening, STIG compliance, and vulnerability...

Saalex is seeking a Senior Network & Systems Administrator in Camarillo, CA to support the administration, security, modernization, and sustainment of enterprise server and network environments. The selected candidate will serve as a technical resource responsible for maintaining secure, reliable, and compliant infrastructure supporting mission-critical operations. This role requires extensive experience with Windows and Linux administration, cybersecurity compliance, automation, patch management, enterprise services, and server lifecycle support. Position Type : Full-Time Salary Range: $130K-$140K (depending on experience) Work Location: Onsite. Essential Functions: Administer, maintain, and troubleshoot enterprise Windows and Linux server environments. Manage and support DNS, DHCP, Active Directory domain services, and Group Policy Objects (GPOs). Implement and maintain security controls, compliance baselines, and DISA STIG requirements. Perform server...

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. At the heart of Defining Possible is our...

General Statement of Job: The Senior Manager of IT Infrastructure leads the strategy, security, and continuous improvement of SIS's cloud-first IT infrastructure across the Americas. This leader owns the company's Cloud, Systems Administration, Networking, and Help Desk functions and is accountable for advancing SIS's Zero-Trust strategy, in which all access is verified, identity is the perimeter, and the environment is centrally managed, monitored, and documented. SIS operates a predominantly Apple environment (approximately 90% macOS) supporting a 24/7 Global Security Operations Center, so the ideal candidate pairs senior leadership ability with hands-on depth in modern cloud, identity, endpoint, and network platforms. Working within an ITIL-based operational framework, the Senior Manager of IT Infrastructure sets technical direction, develops the team, guides IT policy and purchasing decisions, and partners with leadership to deliver a reliable, secure, and...

Under the direction of the Manager Operations – IT, the Supervisor, Operations – IT, ensures the execution of various operational strategies by communicating and implementing department objectives. Additionally, this position is responsible for leading a team of Field Support Analysts, that provide best-in-class service. ESSENTIAL DUTIES AND RESPONSIBILITIES 1. Provides leadership to technical teams ensuring alignment with operational support directives and defined service level agreements. 2. Oversees daily operational support functions and resource allocation to consistently meet and exceed business expectations. 3. Collaborates with other department leaders to define, prioritize, and complete various projects and support needs. 4. Creates repeatable processes to meet the needs of a fast-paced organization and establish best-in-class standards. 5. Contributes in the development of short-term and long-term tactical plans to meet operational needs. 6. Monitors and...

System Administrator II | San Diego, CA Applying to this job will open a new window on the employer's web site to apply there. Posted Date 10/01/2026 Description Lyntris is a defense technology company that connects sensing to action across the connected battlespace. Lyntris brings together the talents of Accelint and Vitesse teams under one mission, with each contributing deep expertise within their domain. Combining differentiated hardware, software and mission expertise, Lyntris helps customers sense threats, make sense of complex conditions and act with greater speed, precision and confidence in contested environments. Lyntris supports U.S. and allied defense organizations across every branch — including Navy, Army, Air Force, Space Force and allied partners — spanning strategic, operational and tactical missions and every domain: Space, Air, Land, Sea and Cyber. With more than 200 active defense programs, Lyntris works at...

This posting states its location as United States rather than a street address. The work is assigned within that county. Classification: INFORMATION TECHNOLOGY SPECIALIST II Under general direction of the Infrastructure Services Branch Chief (Information Technology Manager I), the Information Technology Specialist II (ITS II) serves as the AWS Platform Administrator responsible for administering, operating, securing, optimizing, and supporting the Department's AWS cloud environment and related cloud-based infrastructure services. The incumbent provides AWS systems engineering, platform administration, configuration management, monitoring, security administration, troubleshooting, and operational support to ensure the reliability, availability, performance, and scalability of cloud-hosted solutions. This position focuses on AWS infrastructure, cloud platform operations, governance, and continuous service improvement rather than application development, serving as a...

Five Rivers Analytics is looking for a Network/VTC Administrator to work in Barstow, CA.  To join our team of outstanding professionals, apply today! Network/VTC Administrator will be responsible for managing and maintaining the organizations network & video teleconferencing (VTC) systems at Ft. Irwin.  The role requires an individual with expertise in network administration, VTC support and compliance with DoD cybersecurity standards. Responsibilities Administers, configures and maintains network infrastructure and VTC systems. Monitors network performance and ensures the highest level of availability and security, Troubleshoots and resolves network and VTC related issues promptly. Collaborates with the cybersecurity team to implement security measures and ensures compliance with DoD standards. Conducts regular system backups and recovery procedures. Provides technical support and guidance to users and other team members. Stays up to date with latest network & VTC...

Sigma Defense is seeking a Web Developer to join our team in San Diego, CA. Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Essential Job Duties (not all-inclusive): Develop applications in DoD, federal government, or other highly regulated environments. Maintain JSON Schemas to define data structures, required fields, data types, and validation rules. Develop and maintain web based distributed applications using React and modern JavaScript/TypeScript frameworks, including administrative and data-driven interfaces using frameworks such as React Admin and Recharts. Develop and maintain RESTful APIs to support application functionality, system...

Description A 3% supervisory differential will apply. Overview:  Are you ready to lead a program that supports transparency and makes information accessible? Valley Water is seeking a Supervising Program Administrator – Records and Information Management to lead its Records and Library Program within the Clerk of the Board. In this role, you will guide staff in organizing, securing, and preserving physical and digital records; oversee responses to public records requests and other legal demands in coordination with District Counsel; and improve records management policies, procedures, and systems. You will also lead digitization and database migration efforts to ensure Valley Water’s information remains accurate, reliable, and easy to find. Our Commitment:  We are committed to building and sustaining a working environment where all individuals are respected and valued. We believe every member of our team brings unique...

Now Eligible for a $10,000 Bonus! $1,700  - Monthly Flexible Benefit Plan Contribution for Medical Benefits. Bilingual Incentive Pay, Longevity Pay, & so much more! Full-Time Police Dispatcher - $5,307.29 - $6,451.04/monthly. Part-Time Police Dispatcher - $30.62 - $37.22/hourly.   Please note the benefits listed under the benefits tab do not apply to part-time employees. Only full-time employees are eligible for benefits. Part-time employees typically work up to 19 hours a week, cannot work more than 28 hours a week, serve at will, and are exempt from the Civil Service System. APPLICATION REQUIREMENTS RESUME TYPING CERTIFICATE : 1) 40 NET words per minute; 2) within 12 months of application submission; 3) in-person test required ;  4) five-minute timed test. POSITION DESCRIPTION Under general supervision, serves as a emergency communications professional responsible for ensuring...

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Contract Management Job Description: Apply your expertise to advance the mission and optimize our business strategy as a Property Administrator at GDIT. Here, you’ll support solving some of our clients’ biggest challenges and help us grow the business. At GDIT, people are our differentiator. As a Property Administrator you will help ensure today is safe and tomorrow is smarter. Our work depends on Property Administrator joining our team to support our government client’s activities in their locations. As a Property Administrator manages government property and assets in accordance with contract requirements, approved procedures, and government regulations. Property Administrator is responsible for the oversite of contract property team, customer...

Network / VTC Administrator will be responsible for managing and maintaining the organizations network & video teleconferencing (VTC) systems at Ft. Irwin.  The role requires an individual with expertise in network administration, VTC support and compliance with DoD cybersecurity standards. Responsibilities Administers, configures and maintains network infrastructure and VTC systems. Monitors network performance and ensures the highest level of availability and security, Troubleshoots and resolves network and VTC related issues promptly. Collaborates with the cybersecurity team to implement security measures and ensures compliance with DoD standards. Conducts regular system backups and recovery procedures. Provides technical support and guidance to users and other team members. Stays up to date with latest network & VTC practices. Qualifications An Active DoD Secret Clearence is required for consideration. Two years relevant experience. IAT-II certification...

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Cyber and IT Risk Management Job Description: Information Technology/Assurance (IT/IA) Specialist II The primary function is working within Special Access Programs (SAPs). The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities. Performance shall include: Establish complex operational software configuration controls and system interfaces for computer system(s) assigned Maintain file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required Analyze and troubleshoot system anomalies to ensure optimum equipment performance Prepare system for operational use and support operational tests Review, prepare, and update...

Saalex Corporation  is seeking multiple  Network Administrator II in  Tidewater, VA and San Diego, CA.  Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data Analytics and Business Intelligence Services and Information Technology Services. Founded in 1999 by Travis Mack, Saalex Solutions is a Service Disabled Veteran-Owned and Operated business with prime and subcontract expertise serving the Navy, Army, Air Force, NASA, corporate clients, and local governments. Saalex offers competitive compensation, career development, flexible work schedules and excellent benefits. Position Type:   Contingent on Contract Award. Salary:  $65k-$115k (depending on experience) The Network Administrator II supports the Navy by administering, securing, and maintaining enterprise network infrastructure across global Live Virtual...

Saalex Corporation  is seeking multiple  Network Administrator III  in  Tidewater, VA and San Diego, CA.  Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data Analytics and Business Intelligence Services and Information Technology Services. Founded in 1999 by Travis Mack, Saalex Solutions is a Service Disabled Veteran-Owned and Operated business with prime and subcontract expertise serving the Navy, Army, Air Force, NASA, corporate clients, and local governments. Saalex offers competitive compensation, career development, flexible work schedules and excellent benefits. Position Type:   Contingent on Contract Award. Salary:  $75k-$130k (depending on experience) The Network Administrator III supports the Navy by administering, securing, and maintaining enterprise network infrastructure across global Live Virtual...