Windows Systems Administrator

Company Description

Join us and make YOUR mark on the World!

Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability.


Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.

Job Description

We're looking for a Windows Systems Administrator to provide advanced technical computer and infrastructure support for systems in this heterogeneous environment. You will work in a safety conscious, challenging, rapidly changing, and team-oriented environment to solve a variety of complex technical problems in a timely manner. This position is in the Information Technology Operations (ITO) Division within the Computing Directorate.

This position requires full-time on-site presence due to the nature of the work.

This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level.

You will

• Work primarily at the main Livermore facility supporting and building infrastructure in a fast paced and heterogeneous environment while monitoring both Corporate and Isolated Network and Core Infrastructure Services, such as Citrix PVS/CVAD, Horizon View/Omnissa VDI, Load Balancers, Active Directory, Storage Systems, Backups, VMWare, Virtual Servers, DNS, DHCP, Citrix Etc.
• Provide expertise for complex installations, configurations, and hardware and/or software upgrades using independent judgment to resolve complex systems and network-related problems.
• Collaborate with management, customers, and team members to evaluate and recommend procurements of Windows or Appliance based hardware and software.
• Independently resolve problems, requiring highly advanced knowledge of one or more platforms (e.g., Windows, Exchange, VMWare, Active Directory, Citrix, etc.).
• Define and maintain support documentation and procedures.
• Be a team player, maintain appropriate technology, computer security, and safety knowledge, and support and represent the Infrastructure team.
• Perform other duties as assigned.

Additional job responsibilities, at the 393.2 level

• Diagnose, troubleshoot, and resolve highly complex system and network-related problems, including driving problem resolution, working with vendors, and managing cases as required.
• Serve as a technical leader and an internal and external consultant, providing highly advanced technical assistance to the user community and collaborating with customers in the design of their computing environment.
• Function as a technology advocate, ensuring the most appropriate solutions are employed and maintained.

Qualifications

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
• Bachelor's degree in a computer-related field or equivalent combination of technical training and experience.
• Broad and in-depth knowledge and technical experience with Windows and/or Linux operating systems and/or Virtual environments and related hardware.
• Extensive experience with Citrix PVS/CVAD, Horizon View/Omnissa VDI, Active Directory, DNS, DHCP, Computer Security and/or Networking Protocols.
• Ability to independently set priorities and resolve complex problems in a fast-paced environment.
• Experience exercising effective customer support skills in a diverse user community with widely varying levels of computer literacy.
• Proficient interpersonal and communication (verbal and written) skills, with ability to work independently and interact with a multi-disciplinary staff in a team environment.

Additional qualifications at the 393.2 level

• Highly advanced knowledge of and substantial experience with Windows, and/or Linux operating systems, and Virtual environments and related hardware.
• Substantial experience mentoring employees in technical skills.
• Substantial experience serving as a technical team lead on projects, achieving positive results, and driving projects to closure on time and on budget.

Qualifications We Desire

• Broad and in-depth knowledge and technical expertise with enterprise support tools for management, patching, or software distribution, computer network hardware, software, protocols, and principles, Windows computer security concepts and practices, computer network hardware/software, protocols and principles, and Windows operating systems.
• Professional computer certification (e.g., MCSA, MCSE, CompTIA A+, ACSP, RedHat) or a professional network certification (e.g., CCNA).
• Experience directing complex troubleshooting.

Pay Range

$125,310 - $153,444 Yearly at the 393.1 level

$151,620 - $185,640 Yearly at the 393.2 level

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs.

Additional Information

#LI-Onsite

Position Information

This is a Career Indefinite position, open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory?

• Included in 2026 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (*depending on project needs)
• Our values - visit

Security Clearance

This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship.


Pre-Employment Drug Test

External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

Wireless and Medical Devices

Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices.


If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings.

How to identify fake job advertisements

Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under "Find Your Job" of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond.

To learn more about recruitment scams:

Equal Employment Opportunity

We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws.

Reasonable Accommodation

Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request.


California Privacy Notice

The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

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