Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Systems Administrator

Sellers & Associates, LLC

Who We Are Sellers & Associates, LLC (S&A) is a Veteran Owned Small Business (VOSB) that provides effective and affordable Programmatic and Engineering Support Services and Solutions to our Government and Commercial Clients. We work directly with our clients taking the time to understand their culture and requirements designing a custom solution tailored to meet their unique needs at an affordable price without sacrificing quality. Our specialties include Program/Engineering Management, Training/Training Technology, Technology/Product Development Strategy and Analysis, Project Management (Cost, Schedule, Scope & Quality), and Strategic Planning applied within our clients' unique domains and context. We have Medical, Dental, Vision, 401k with company match. Long/Short Term Disability and Life Insurance. 25 days of PTO per year. Employees may choose to work or take PTO on Federal Holidays (pending contract requirements). We also offer a TRICARE Supplement Insurance Package as well as Tuition Reimbursement up to $5,250 per year for areas of study relevant to employee position responsibilities and opportunities for professional growth. Position Description Location Security Clearance Requirements Must be Able to Obtain a Clearance Job Description We are seeking a Systems Administrator to join our team in San Diego, CA (on-site). Responsibilities: Implement and maintain CMMC & NIST 800-171 compliance. Provide system administration for infrastructure while establishing and maintaining security as it relates to users. Lead and complete a diverse set of IT projects (software deployments, system migrations, updates, networking configurations, facility build outs, audio/video install). Exhibit a track record of solid IT systems knowledge with hardware, software, network printers, server, VM, and other network technology. Participate in onboarding of new hires through electronic presentation; ensure that new hires have functioning computers and are aware of how to use them according to company policies and guidelines. Install, upgrade, configure, test, maintain and support operating system software and associated applications in a production environment. Create & maintain all configuration documentation. Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems, and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups. Local/Remote Network Management and configuration (Cisco switches, Ubiquiti routers, Aruba IAP’s, Blade servers/VM’s). Design, implement and maintain SIEM, security baseline configuration for O365 GCC High, Intune & Azure Active Directory Group Policy Settings. Conference room audio/video install & maintenance. Analyze, troubleshoot, and resolve issues with IT infrastructure including user systems, servers, audio/video, and storage and network connectivity. Inventory Management with the use of asset tagging and auditing. Review system and security logs to locate and investigate anomalies. Apply security patches to applications and operating systems. Job Requirements Basic Qualifications: Ability to obtain a Secret security clearance CompTIA Security+ Certification Ability to run new Cat6 wiring in Ceilings, walls, and floors (interior and exterior) while applying proper termination techniques. Knowledge and ability to mount flat screen TV’s to various wall surfaces. Strong work ethic and excellent organizational skills Possess a high degree of originality, creativity, initiative requiring minimal supervision Experience in managing, configuring, and troubleshooting Windows Server Operating Systems, Active Directory, Azure, Intune, and Networking to include Cisco CLI usage Strong knowledge of networking and security concepts including routing, switching, VLANs, firewalls, and SNMP monitoring Strong technical, analytical, and trouble-shooting skills with ability to communicate technical information to non-technical end-users Facility rough-in experience CMMC/NIST 800-171 experience Database, cloud application, software development, or website development experience is a plus. PC Watercooling build experience a plus. Travel % 0 - 10% Sellers and Associates, LLC is an E-Verify company and an Equal Opportunity/Affirmative Action 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. #J-18808-Ljbffr

Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Systems Administrator in San Diego, CA vacancy
  • $98.11k - $147.16k

     ...solutions. From software-defined radios to cutting-edge cryptographic systems and avionics, everything we build powers the next era of New...  ...the infinite, together. A DAY IN THE LIFE As an IT Systems Administrator III, you’ll lead advanced system administration, security... 
    Suggested
    Remote work
    Work visa
    Flexible hours

    Innoflight Inc

    San Diego, CA
    5 hours ago
  •  ...the Position The U.S. District Court for the Southern District of California is accepting applications for the position of Systems Administrator. This position is located in the Clerk’s Office and reports to the Director of Information Technology. The Systems Administrator... 
    Suggested
    Work at office
    Local area
    Immediate start
    Remote work
    Flexible hours
    Weekend work
    Afternoon shift

    United States Courts

    San Diego, CA
    1 day ago
  • $67.6k - $122.2k

     ...within our CISO and Digital Modernization Sector, is seeking a System Administrato r to support various classified environments. The...  ..., remote system management, NTFS permissions, and common administration tools. Basic knowledge of Linux‑based distributions and willingness... 
    Suggested
    For subcontractor
    Local area
    Immediate start
    Remote work

    Leidos

    San Diego, CA
    5 hours ago
  • $120k - $155.4k

     ...Overview Resource Management Concepts, Inc. (RMC) is looking for a talented Systems Administrator III to support the Naval Information Warfare Center (NIWC) Pacific Service Centers in Point Loma, CA. This role is critical in ensuring seamless operations within the Data... 
    Suggested
    Contract work

    Resource Management Concepts

    San Diego, CA
    1 day ago
  • $70k - $120k

     ...Saalex Corporation is seeking multiple System Administrator II inTidewater, 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... 
    Suggested
    Contract work
    Temporary work
    Local area
    Flexible hours

    Saalex

    San Diego, CA
    5 hours ago
  • $124k - $154k

     ...solutions. This role demands the ability to quickly evaluate core systems and optimize them into scalable, forward‑looking solutions....  ...advanced troubleshooting and root cause analysis Provide administration and performance optimization of Azure services, including Virtual... 
    Full time
    Local area
    Shift work

    Bumble Bee Foods

    San Diego, CA
    1 day ago
  • $80k - $120k

     ...Description SAIC is looking for a System Administrator to join the Fleet Support Team in support of the Comprehensive Automated Maintenance Environment – Optimized (CAMEO) Software for the V-22 Community across the Air Force, Navy, and Marine Corps out of Miramar, California... 
    Work at office

    SAIC

    San Diego, CA
    3 days ago
  • $76.7k - $129.5k

     ...Position We are searching for an experienced, organized, positive, and self‑motivated Infrastructure Systems Administrator to join our DevSecOps Department within the Joint Mission Integration and Experimentation (JMIE) Division at the Applied Research Laboratory (ARL)... 
    Full time
    Work experience placement
    Work from home
    Flexible hours

    The Applied Research Laboratory at Penn State University

    San Diego, CA
    1 day ago
  •  ...phase, GlobalXperts technical staff has been successfully utilized by our customers for any or all phases. Job Description The System Administrator (SA) is responsible for server installation, maintenance, back up and security, along with performance tuning and capacity... 
    Remote work

    Globalxperts Inc.

    San Diego, CA
    2 days ago
  • $60k - $105k

     ...Saalex Corporation is seeking multiple System Administrator I positions 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... 
    Contract work
    Temporary work
    Local area
    Flexible hours

    Saalex

    San Diego, CA
    1 day ago
  •  ...Overview Position Summary The position of Systems Administrator will be responsible for the performance, availability, and reliability of SDCCU’s information technology infrastructure serving both SDCCU’s employees and customers. Maintain high quality service and production... 
    Full time

    San Diego County Credit Union

    San Diego, CA
    5 hours ago
  • $90k - $150k

     ...About the Role Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Systems Administrator to be part of our Security team and based out of our San Diego, CA location. The Systems Administrator will support the management, maintenance... 
    Work at office
    Immediate start

    Innovative Defense Technologies

    San Diego, CA
    1 day ago
  •  ...Overview We are seeking a mission-focused Systems Administrator to support Navy enterprise IT environments. This role is responsible for maintaining servers, networks, and cybersecurity compliance across classified and unclassified systems. You'll work closely with senior... 

    Kros-Wise

    San Diego, CA
    5 hours ago
  • Phase2 Technology is seeking a Mid IT Systems Administrator to join their team in San Diego, CA. The role involves improving technology for the U.S. Navy and requires a strong background in VMware, Windows Server, and Active Directory. The ideal candidate has over three... 

    Phase2 Technology

    San Diego, CA
    4 days ago
  • Summary The Systems Administrator II/VDI Engineer supports the design, configuration, and sustainment of the Virtual Desktop Infrastructure (VDI) environment used across PMW 790's STACC enterprise. This role ensures secure, reliable, and efficient desktop virtualization... 
    Remote work

    Information Management Resources Inc

    San Diego, CA
    1 day ago
  • $125k - $135k

    *Active Secret Clearance required for consideration* Zachary Piper Solutions is currently seeking a Cloud Systems Administrator to support a US Government RDT&E program . This position is a full-time, onsite role in San Diego, CA . This position is critical in designing... 
    Full time

    Zachary Piper Solutions

    San Diego, CA
    3 days ago
  • $110k - $130k

     ...offer relocation assistance. Competitive Salary Range: $110,000-$130,000 per year DOE The Role We are looking for a Senior Systems Administrator who will own the design, implementation, and reliability of an organization's core server and cloud infrastructure. The role... 
    Work experience placement
    Work at office
    Immediate start
    Relocation package
    Monday to Friday

    Applications International

    San Diego, CA
    2 days ago
  • Position Description & Qualifications Looking for a System Administrator position at a place where you can make a difference every day? Discover this great opportunity in our San Diego, CA location. Bring your expertise and collaborative skills to make an impact toward... 
    Contract work
    Work at office
    Local area
    Flexible hours

    Serco

    San Diego, CA
    5 days ago
  • $77k - $130k

     ...requirements, our recruitment team will contact you as soon as possible. Open Jobs Dec 12 2025 ID Job Title Job Description 77113 System Administrator Yakshna Solutions, Inc ., (YSI) is a CMMI Level 3 assessed, ISO 9001, 20000:1, 27001 certified, woman-owned small business... 
    Full time
    Temporary work
    Local area
    Immediate start
    Remote work

    Yakshna Solutions

    San Diego, CA
    5 days ago
  • Systems Administrator - Multiple Locations (Port Hueneme, Corona, China Lake, San Diego) Security Clearance Requirements US citizenship required Active security clearance required (Security clearance eligibility may be considered on a case-by-case basis.) Essential Functions... 
    Work experience placement
    Immediate start
    Relocation
    Flexible hours

    Life Cycle Engineering

    San Diego, CA
    3 days ago
  • Information Management Resources, Inc. is seeking a Systems Administrator II/VDI Engineer in San Diego, CA. The role focuses on maintaining and administering Virtual Desktop Infrastructure (VDI) environments, ensuring operational efficiency and cybersecurity compliance.... 

    Information Management Resources Inc

    San Diego, CA
    2 days ago
  • Benefits Paid time off Competitive salary About the Role Join San Diego Unified School District as an FPC Enterprise Systems Administrator and play a key role in optimizing our enterprise systems. We are looking for a tech‑savvy professional who is excited to enhance... 
    Work from home
    Flexible hours

    Allied Express Solutions

    San Diego, CA
    3 days ago
  • Boarhog will hire a Systems Administrator in San Diego CA to support the Surface Combat Systems Training Command (SCSTC) which requires Network Administrative Support, including Information Management, Computer and Local Area Network (LAN) Administration, Cyber Security... 
    Full time
    Contract work
    For contractors
    Work at office
    Local area
    Immediate start
    Remote work
    Worldwide
    Rotating shift

    Tech9

    San Diego, CA
    4 days ago
  • $38.25 - $49.25 per hour

     ...Education, Experience, Skills) Bachelor’s Degree in Business Administration or related field or equivalent education or work experience....  ...and manages consistent execution of changes and enhancements to system logic, rules, and behavior. Participate in AML/BSA compliance... 
    Hourly pay
    Full time
    Work experience placement
    Monday to Friday
    Night shift
    Weekend work

    San Diego County Credit Union

    San Diego, CA
    5 days ago
  •  ...Tech9 is hiring a Systems Administrator in San Diego, CA, to support the Surface Combat Systems Training Command. This role demands expertise in network administration, cyber security, and system assessments, along with a minimum of four years of system management experience... 

    Tech9

    San Diego, CA
    1 day ago
  • A dedicated engineering firm seeks a Cybersecurity Systems Administrator II in San Diego to support Navy initiatives. The role involves system/network administration, troubleshooting, and implementing cybersecurity policies. Candidates should have experience with DoD LAN... 

    ICI Services Corporation

    San Diego, CA
    3 days ago
  • $77k - $130k

    A leading IT solutions provider is seeking an experienced System Administrator. The candidate will manage network infrastructure, system security, and cloud computing strategies. Requirements include a Bachelor’s degree in a related field and four years of relevant experience... 
    Full time

    Yakshna Solutions

    San Diego, CA
    5 days ago
  • $95k - $115k

    A leading aerospace firm in San Diego is seeking a Senior Systems Administrator to maintain and secure their information technology infrastructure. The ideal candidate will have over 5 years of experience in information systems, including strong knowledge of Microsoft environments... 
    Full time

    Pacific Aerospace Consulting

    San Diego, CA
    4 days ago
  • Pmat Inc. is looking for Systems Administrators in San Diego with expertise in Agile Core Services. This role involves integrating, installing, and maintaining ACS within the OPE AWS environment. Candidates should have 5+ years of relevant experience and the ability to... 

    PMAT INC

    San Diego, CA
    2 days ago
  • $100k - $170k

    A leading engineering and IT services firm is seeking a System Administrator III in San Diego, CA. The role involves administering, maintaining, and securing enterprise IT systems across diverse environments, ensuring system reliability and compliance with military cybersecurity... 

    Saalex

    San Diego, CA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Systems Administrator. Be the first to apply!