Full Stack Engineer - ACTIVE SECURITY CLEARANCE REQUIRED

We have an opening for a Full Stack Engineer to contribute to the design, development, and support of LLNL’s Enterprise Search platform. This position is in the Digital Experience and Search group within the Information Technology Solutions Division within the Computing Directorate in support of the 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.

You will

• Provide software application engineering and maintenance for all phases of the software development lifecycle, including analysis, design, implementation, automated testing and support. This includes both frontend and backend development for all aspects of our search environment.
• Leverage Elasticsearch, Java, Angular, TypeScript, Node.js, python and other technologies in the support of various facets of the Lab’s enterprise search application including crawling, indexing, query tuning, report building, and updating the search APIs and User Interfaces.
• Create and update CI/CD pipelines to build and test new features and applications.
• Deploy software following an agile design methodology to be secure, free of vulnerabilities, and componentized for ease of maintenance.
• Provide analysis and innovative methods to enhance and extend the product services to customers.
• Provide knowledge sharing with team members and/or mentoring in application design and business processes.
• Perform other duties as assigned.

• This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at the time of hire.
• Bachelor’s degree in a computer or engineering related field, or the equivalent combination of education and related experience.
• Broad experience with DML and/or DDL as they relate to one or more relational database management systems (e.g., Oracle, MySQL).
• In-depth knowledge of current trends and best practices in web architecture and design in one or more of the following areas: performance, accessibility, UI/UX design, prototyping, scalability, compliance, and/or usability.
• Broad experience with ML models in the areas of text and image analysis.
• Experience with software development lifecycle, version controls and issue tracking tools.
• Ability to own projects from beginning to end. This covers research, technical design, and working with others to develop needed components. Able to effectively manage concurrent technical tasks with competing priorities, approach difficult problems with enthusiasm and creativity and ability to change focus when necessary.
• Proficient verbal and written communication skills necessary to effectively collaborate in a team environment and present and explain technical information and provide advice to management.

Qualifications We Desire

• Experience with NLPs and vector-based retrieval.
• Experience with cloud-based SaaS solutions.
• Experience configuring/deploying applications within Kubernetes., This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at time of hire.

• 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 https://www.llnl.gov/inclusion/our-values

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.