Full Stack AI Developer

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.

We have an opening for a Full Stack AI Developer to help design, build, and support LLNL’s Enterprise Search and Liv Chat platforms. Liv Chat is LLNL’s first AI‑powered conversational assistant, and our group operates multiple AI platforms that deliver secure, scalable, natural‑language access to information and tools across the Laboratory.

As part of the Digital Experience and Search group, you will work in a modern, product‑oriented environment that values teamwork, good engineering practices, experimentation, and continuous improvement. You will turn cutting‑edge AI capabilities into intuitive, high‑impact applications used daily across LLNL. Our team is responsible for mission‑critical services, provides strong mentorship and technical growth opportunities, and plays a central role in shaping how staff discover, access, and interact with information.

This position is in the Digital Experience and Search group within the Information Technology Solutions Division in 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.

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.

• 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 and Liv Chat environments.
• Leverage Elasticsearch, Java, Angular, Type Script, Node.js, python and other technologies in the support of various facets of the Lab’s enterprise search and Liv Chat applications 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.

• Lead technical direction and architecture for key aspects of the Enterprise Search and Liv Chat platforms, making decisions on cross‑cutting capabilities that impact multiple programs and mission areas across the Laboratory.
• Serve as the primary technical point of contact for Enterprise Search and Liv Chat, coordinating roadmaps and dependencies across organizations and representing the group on internal technical or advisory committees to advance LivIT and Laboratory information access objectives.
• Drive the adoption of advanced engineering and AI best practices, including scalable, secure‑by‑design architectures and MLOps/LLMOps techniques, while mentoring developers and guiding project teams so that technical advancements in search and conversational AI have impact beyond the immediate products.

• Ability to secure and maintain a U.S. DOE Q‑level security clearance which requires U.S. citizenship.
• Bachelor’s degree in a computer or engineering related field, or the equivalent combination of education and related experience.
• Broad…