Senior System Administrator
Save this job and keep your search organized
Create a free account to save jobs, create alerts and return to this listing from your dashboard.
By continuing, you agree to our Terms & Privacy Policy.
Make sure to apply with all the requested information, as laid out in the job overview below.
In this role you will support the deployment, operation, and maintenance of on-site IT systems in a classified lab environment. You will help sustain secure, compliant infrastructure that enables mission-critical research and operations. You work closely with Global Security and Site Operations to keep systems reliable, updated, and auditable, while contributing to modernization and risk reduction. This position offers hands-on work in a controlled setting with clear impact on national security and government initiatives.
Compensation / Benefits
- competitive benefits
- meaningful career development
- collaborative culture
- on-site role
- mission-driven work
Responsibilities
- Patch and update Windows and Linux servers/desktops (RHEL, Ubuntu)
- Perform general systems administration and user support
- Manage network switches (preferred) and virtualization platforms (VMware ESXi, Proxmox, Hyper-V)
- Maintain network storage and repository mirrors (VSCode, Docker, PyPI)
- Handle backup/recovery and disaster recovery platforms (Commvault)
- Build and harden Windows/Linux/virtualization environments
- Procurement, management, and asset tracking of classified IT hardware
- Design future IT upgrades to meet evolving site needs
- Track equipment location and inventories; support audits
- Coordinate installation, disposition, and destruction with security teams
- Plan equipment moves/transfers for facility transitions
- Support Site Operations in day-to-day security operations (visitor escort, site access)
- Monitor power/HVAC during outages and communicate impact/timelines
- Maintain purchase card usage and compliance with acquisition policies
Key requirements
- Minimum 5 years of related experience with a Bachelor’s degree; or 3 years with a Master; or relevant PhD
- Working knowledge of server and client OS (Windows, Srv22/25, RHEL 8+, Ubuntu 22.04+)
- Fundamental understanding of lab IT architecture and VOIP/VTC troubleshooting
- Fundamental understanding of xhuatnn system administration, networking, and OS hardening
- Basic command-line tools and scripting familiarity
- Strong customer service and communication skills; ability to collaborate
- Active Top Secret US Government security clearance (able to obtain/maintain TS/SCI) and US citizenship
- On-site work requirement: 5 days/week
- Preferred: TS/SCI with CI Poly; Security+ or 8570 IAT Level II; Python/PowerShell/Bash/Chef/Ansible interests
- customer service orientation
- collaboration
- adaptability in a fast-paced environment
- Windows and Linux server/desktop administration
- VMware ESXi, Proxmox, Hyper-V virtualization
- Network storage systems
-
Senior Network Systems Administrator
7 days ago
Los Angeles, California, United States County of Los Angeles Full-timePosition/Program Information TYPE OF RECRUITMENT: OPEN COMPETITIVE - EMERGENCY The application filing period will begin on Friday, October 23, 2026 at 1:00p.m. (Pacific Time) with a deadline of Wednesday, October 28, 2026 at 5:00 p.m. (Pacific Time). The exam will reopen as the needs of the service require. EXAM NUMBER: M2560A-FR The LA County Board of...
-
Senior IT Systems Administrator
5 days ago
Los Angeles, CA, Los Angeles County, CA; California, United States CHAOS Industries Full-timeCHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. CHAOS...
-
FP & A Systems Administrator
3 days ago
Los Angeles, California, United States Silgan Containers Full-time $140,000 - $165,000 ContractFP&A Systems Administrator in Woodland Hills, CA Come build your career in an essential industry with lasting demand. At Silgan, we manufacture the food packaging that consumers rely on every day, providing long-term opportunities for growth! Silgan Containers, North America’s leading metal food packaging manufacturer, is hiring a full-time FP&A Systems...
-
IT Systems Administrator
6 days ago
Los Angeles, California, United States D.A. Davidson Companies Full-time $25 - $38 PermanentD.A. Davidson Companies is an independent, employee-owned company with a rich history spanning 90 years. We are dedicated to conducting our business in accordance with the highest standards of integrity and ethics, and delivering outstanding service to our clients and each other. We support a friendly, open and supportive culture, and encourage candid...
-
Senior Construction Administrator
3 days ago
Los Angeles, California, United States HMC Architects Full-time $105,682 - $158,086 ContractWho We Are HMC Architects is an employee-owned design firm with an inherent desire to make a difference in our communities. As a purpose-driven brand based on values, our mission to design for good drives everything we do. And our ownership culture creates alignment and increased commitment to that mission, keeping us on track to being successful. What We...
-
System Administrator
5 days ago
los angeles, california, United States Vinebrook Technology Full-timeOverview We are seeking a skilled Systems Administrator to support a diverse client environment in a Managed Services Provider (MSP) setting. This role is responsible for maintaining, securing, and optimizing client infrastructure across servers, networks, and onsite data center environments, while collaborating with service desk and engineering teams to...
-
Senior System Software Engineer
2 days ago
Los Angeles, California, United States FemtoMetrix, Inc. Full-timePosition Summary Femtometrix is seeking a senior system software engineer to assume technical ownership of the FemtoController software and related system-control deliverables. The immediate objective for this position is to work to complete an orderly knowledge transfer and take over responsibility for FemtoController development, integration, maintenance,...
-
Senior Database Administrator
5 days ago
Los Angeles, California, United States Mathnasium - The Math Learning Center Full-time $120,000 - $130,000 Contract• Mathnasium Careers • Mathnasium HQ - Los Angeles, CA • Senior Database Administrator Senior Database Administrator ShareApply Full-time Bachelor's degree $120,000.00 - 130,000.00 per year Mathnasium Headquarters: Immediate Opening for a Highly Skilled Senior Database Administrator Are you seeking a dynamic work environment where your expertise...
-
Associate Systems Administrator
7 days ago
Los Angeles, California, United States State Compensation Insurance Fund Full-time $4,935 - $8,740 TemporaryEqual Opportunity Employer The State of California is an equal opportunity employer to all, regardless of age, ancestry, color, disability (mental and physical), exercising the right to family care and medical leave, gender, gender expression, gender identity, genetic information, marital status, medical condition, military or veteran status, national...
-
AV Systems Administrator
4 days ago
Los Angeles, California, United States Robert Half Full-timeOverviewScroll down to find an indepth overview of this job, and what is expected of candidates Make an application by clicking on the Apply button.In this role you own and support audiovisual and collaboration capabilities, serving as a senior technical resource for IT operations. You will blend live AV production with systems administration, scripting, and...
