Overview We are seeking an experienced Full Stack Software Engineer to design, develop, integrate, and maintain modern web applications and AI-enabled capabilities. This role will support the development of scalable LLM-powered solutions, Retrieval-Augmented Generation (RAG) pipelines, Elasticsearch search capabilities, RESTful APIs, and React-based user interfaces within an Agile development environment. What will you do? • Design, develop, modify, test, and maintain scalable software applications and systems. • Develop and integrate LLM-powered capabilities, including Retrieval-Augmented Generation (RAG) solutions. • Design and implement scalable search and information retrieval solutions using Elasticsearch. • Build data pipelines supporting hybrid search, including BM25 and vector-based retrieval. • Develop workflows for data ingestion, document chunking, embeddings, indexing, and vector retrieval. • Design and develop responsive Single Page Applications (SPAs) using React, HTML5, CSS3, and modern JavaScript. • Design and develop backend services and RESTful APIs using Node.js and Express.js or comparable technologies. • Design system interfaces, integration points, data flows, and data exchange workflows. • Translate customer and system requirements into actionable technical designs and software solutions. • Perform unit testing, participate in code reviews, troubleshoot application issues, and maintain software quality. • Support web and server technologies, including Apache Tomcat, Node.js, Web Services, and SSL/TLS. • Develop and maintain solutions within approved cloud environments, including AWS. • Participate in Lean Agile ceremonies, including scrums, sprint planning, backlog grooming, and other development activities. • Collaborate with security, engineering, operations, testing, and other technical teams. • Coordinate with stakeholders to resolve technical issues, clarify requirements, identify resource needs, and support project execution. • Utilize Git, Jenkins, and Nexus to support source control, CI/CD, build, and deployment activities. • Track vendor software roadmaps, releases, patches, and version updates. • Develop and maintain appropriate technical and system documentation. Do you have what it takes? • Active TS/SCI with Polygraph • Demonstrated experience working within a Lean Agile software development environment. • Experience translating customer and system requirements into detailed technical and design specifications. • Strong experience designing system interfaces, integration points, data flows, and data exchange workflows. • Hands-on experience building or integrating LLM-based applications, including: • Retrieval-Augmented Generation (RAG) • Semantic search • AI-assisted information retrieval • Experience designing and implementing hybrid search pipelines combining BM25 and vector search. • Experience with data ingestion, document chunking, embeddings, vector retrieval, and RAG workflows. • Strong experience with Elasticsearch, including index design and optimization, query development, relevance tuning, and cluster scaling. • Hands-on front-end development experience using: • React, including Hooks • HTML5 • CSS3 • JavaScript • Hands-on backend development experience designing and developing RESTful APIs using Node.js and Express.js or comparable backend technologies. • Experience troubleshooting web protocols and server technologies, including Apache Tomcat, Node.js, Web Services, and SSL/TLS configurations. • Experience with modern JavaScript testing frameworks such as Jest or Karma. • Experience with DevOps and software development tools including Git, Jenkins, and Nexus. • Experience developing or supporting applications within cloud environments such as AWS. • Strong analytical, troubleshooting, communication, and collaboration skills.