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Cyber Security Engineer

Lawrence Livermore National Laboratory
tuition reimbursement, 401(k), relocation assistance, remote work
United States, California, Livermore
Feb 18, 2026
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 have an opening for a Cyber Security Engineer to independently and collaboratively perform a wide range of activities associated with supporting the Cyber Security Operations Center (CSOC) infrastructure. This position is in the Information Technology Solutions Division (ITSD) within the Computing Directorate matrixed to the Cyber Security Program (CSP), in support of the Livermore Information Technology (LivIT) Program.

This position offers a hybrid schedule, blending in-person and virtual presence. You will have the flexibility to work from home one or more days per week.

This position will be filled at eitherlevel 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

  • Protect enterprise systems and information by promptly responding to security threats and incidents, acting individually and as part of a team.
  • Provide computer science and software development support using industry standard software development practices leveraging modern programming languages such as Python within Linux, UNIX, and/or Windows environments.
  • Function as a team member while implementing and managing infrastructure utilizing configuration management tools, such as Ansible or Puppet, to configure Linux environments that implement moderately complex operational and security requirements.
  • Work closely with staff to ensure timely patching and mitigation of identified vulnerabilities.
  • Participate in the requirements definition, analysis, design, implementation, debugging, testing, and optimization of computer programs on workstations, servers, and cloud-based environments.
  • Develop scripting and automation to provide solutions to common problems and reduce operational overhead.
  • Install, maintain, and configure system environments to support CSOC services, including servers, operating systems, storage devices, and applications software.
  • Contribute to the continuous integration and deployment by developing automated unit tests and deployment scripts.
  • Perform other duties as assigned.

Additional job responsibilities, at the SES.2 level

  • Manage moderately complex to complex technical parallel tasks and priorities of customers and stakeholders, ensuring deadlines are met, while leveraging team member skills.
  • Develop methods, tools, and procedures to improve incident response capabilities or vulnerability management processes and automate various complex tasks.
  • Provide technical guidance to team members in Cybersecurity best practices and procedures.

Qualifications
  • Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
  • Bachelor's degree in Computer Science, Computer Engineering, Computer Information Systems, or related field, or the equivalent combination of education and related experience.
  • Experience developing software in Python or other programming languages.
  • Technical experience with operating systems, virtual environments, and/or related hardware in a moderately complex server environment.
  • Effective written and verbal communication and strong interpersonal skills, ability to interact with all levels of management and staff.
  • Ability to work in a dynamic, technical team environment with competing priorities and meet deadlines that are important to project success.
  • Experience with approaching difficult problems with enthusiasm and creativity, and to change focus when necessary.
  • Ability to work off-hours and on-call to respond to incidents (intermittently, either as-needed or as part of a rotation).

Additional qualifications at the SES.2 level

  • Proficient knowledge of SIEM solutions, EDR's, threat hunting, incident response, incident management or vulnerability management.
  • Comprehensive experience conducting host forensics, network forensics, log analysis, or malware analysis in support of incident response investigations or leading vulnerability assessments.
  • Current industry specific certifications including but not limited to Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), or Global Information Assurance Certification (GIAC).

Qualifications We Desire

  • Master's degree in Computer Science, Computer Engineering, or a related field, or equivalent level of knowledge.
  • Significant incident response or vulnerability management experience, including experience with cloud services such as AWS/Azure.
  • Experience with programming or scripting languages such as C, C#, Python, Java, PowerShell and PHP.

Pay Range

$121,830 - $154,500 Annually for the SES.1 level

$146,340 - $185,544 Annually for the SES.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-Hybrid

Position Information

This is a Flexible Term appointment, which is for a definite period not to exceed six years.If final candidate is a Career Indefinite employee, Career Indefinite status may be maintained (should funding allow).

Why Lawrence Livermore National Laboratory?

  • Included in 2026Best Places to Work by Glassdoor!
  • FlexibleBenefits Package
  • 401(k)
  • Relocation Assistance
  • Education Reimbursement Program
  • Flexible schedules (*depending on project needs)
  • Our values - visithttps://www.llnl.gov/inclusion/our-values

Security Clearance

This position requires a Department of Energy (DOE) Q-level clearance.If you are selected, wewill initiate a Federal background investigation to determine if youmeet 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 useand/or possession ofmobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area whereyou are not permitted to have a personal and/or laboratory mobile devicein your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices.

Ifyou useamedical device, whichpairs with a mobile device,you must still follow the rules concerningthe mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities requireseparate 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:https://www.llnl.gov/sites/www/files/2023-05/LLNL-Job-Fraud-Statement-Updated-4.26.23.pdf

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.

CaliforniaPrivacy Notice

The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitlesjob 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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