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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Developer - **Company:** VTG LLC - **Location:** McLean, VA, United States - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Agile Methodology, Artificial Intelligence, Amazon Web Services, Apache Tomcat, HTML5, Unit Testing, Cascading Style Sheets (CSS), Software Documentation, Software Quality, Code Review, Continuous Integration, DevOps, Electronic Data Interchange (EDI), Elasticsearch, Information Retrieval, Cisco Nexus Switches, Node.Js, Scrum Methodology, Software Tools, Search Technologies, Software Requirements Analysis, Software Systems, Data Streaming, Systems Integration, Web Applications, Web Services, Transport Layer Security, Cloud Platform System, Data Ingestion, ReactJS, Large Language Models, Express.js, Generative AI, Indexer, Backend, Git, Front End Software Development, Restful APIs, Software Version Control, Data Pipelines, Jenkins - **Published:** September 30, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9201003/full-stack-developer ## About the Role * 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. ## Description 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. ## Related Videos - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Shifting Stress to Progress— Understanding DevOps to do DevOps Better](https://www.wearedevelopers.com/videos/268-shifting-stress-to-progress-understanding-devops-to-do-devops-better) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 139 - Soft and hard queries](https://www.wearedevelopers.com/magazine/487-dev-digest-139-soft-and-hard-queries) - [Dev Digest 119 - ❤️ === ❤️](https://www.wearedevelopers.com/magazine/454-dev-digest-119)