Cyber Security Engineer

Entry Level | Full-time Information Technology/Computing | Livermore, CA | 07/21/2026Reference #: REF8547ZJob Code: SES.1 Science & Engineering MTS 1 / SES.2 Science & Engineering MTS 2Organization: ComputingPosition Type: Flexible TermSecurity Clearance: Anticipated DOE Q clearance (requires U.S. citizenship and a federal background investigation)Drug Test: Required for external applicant(s) selected for this position (includes testing for use of marijuana)Medical Exam: Not applicable Company DescriptionJoin 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 DescriptionWe have an opening for a Cyber Security Engineer to independently and collaboratively perform a wide range of activities associated with supporting the Cyber Security Program on the Assurance Engineering Team. 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 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.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.You willProvide 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.Develop scripting and automation to provide solutions to common problems and reduce operational overhead.Manage multiple parallel tasks, ensuring deadlines are met, leveraging team member skills.Develop methods, tools, and procedures to improve incident response capabilities or vulnerability management processes and automate various complex tasks.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 enhance information assurance capabilities, including vulnerability management, risk mitigation, security control validation, and automated workflow support.Provide technical guidance to team members in Cybersecurity best practices and procedures.QualificationsAbility 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, Cyber Security, or related field, or the equivalent combination of education and related experience.Fundamental experience developing software in Python or other programming languages.Fundamental knowledge of Information Technology and development tools including networking, databases, containers, git, CI/CD, logging, PKI, OAuth, or Active Directory.Sufficient 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.Additional qualifications at the SES.2 level Ability to work effectively with minimal guidance.Broad technical experience with Linux or Windows operating systems, networks, and/or related hardware. Broad experience applying effective analytical and problem-solving skills to moderately complex problems.Ability to plan, design, and evaluate moderately complex cybersecurity solutions with a focus on information assurance. Qualifications We DesireExperience with cloud services such as AWS/Azure and experience with programming or scripting languages such as C, C#, Python, Java, PowerShell, or PHP.Experience translating business requirements into sound architectural design and implementation.Practical experience using APIs to connect systems and automate workflows.Pay Range$121,830 - $154,500 Annually for the SES.1 level$146,340 - $185,544 Annually for the SES.2 levelThis 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-HybridPosition InformationThis 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 2026 Best Places to Work by Glassdoor!Flexible Benefits Package401(k)Relocation AssistanceEducation Reimbursement ProgramFlexible schedules (*depending on project needs)Our values - visit Security ClearanceThis 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 TestExternal 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 DevicesPer 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 advertisementsPlease 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 OpportunityWe 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 AccommodationOur 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. 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