{"schemaVersion":"jobsearcher.job.v1","id":"625b6d03e55f54b93fd81190","url":"https://jobsearcher.com/jobs/625b6d03e55f54b93fd81190","canonicalUrl":"https://jobsearcher.com/jobs/625b6d03e55f54b93fd81190","title":"Web Application Developer","description":"Job ID: 2618095\n\nLocation: Reston, VA, US\n\nDate Posted: 2026-10-19\n\nCategory: Software\n\nSubcategory: SW Engineer\n\nSchedule: Full-Time\n\nShift: Day Job\n\nTravel: No\n\nMinimum Clearance Required: TS.SCI_wPoly\n\nClearance Level Must Be Able to Obtain: None\n\nPotential for Remote Work: ORA_ON_SITE\n\nDescription\n\nQVine, an SAIC company, is seeking an experienced Full Stack Web Application Developer to join our team. This role involves hands-on technical expertise in building modern, scalable web applications with a focus on AI-driven features. The ideal candidate combines strong front-end development skills in ReactJS with robust Python backend experience, including the design and integration of LLM-powered applications using LangChain, LangGraph, and LangSmith.\n\nKey Responsibilities:\n\nFront-End Development: Design, build, and maintain responsive, user-friendly web interfaces using ReactJS, including state management, component architecture, and integration with RESTful and streaming APIs.\nPython Backend Development: Develop and maintain scalable backend services in Python, exposing clean APIs to support front-end and AI-driven functionality.\nLLM Application Engineering: Design, implement, and optimize AI-powered features using LangChain and LangGraph, including building conversational agents, retrieval-augmented generation (RAG) pipelines, and multi-step agentic workflows.\nAPI Design & Integration: Build and maintain well-documented APIs that connect front-end applications with backend services and third-party LLM providers.\nCI/CD & Deployment: Contribute to continuous integration and continuous delivery pipelines to streamline code deployment, testing, and release cycles for web applications.\nCloud Deployment: Deploy and maintain web applications and backend services in cloud environments (AWS and/or Azure), ensuring high availability, security, and cost efficiency.\nSecurity & Compliance: Collaborate with the cybersecurity team to embed best practices into the development lifecycle, including secrets management, secure API design, vulnerability scanning, and compliance automation.\n\nQualifications\n\nBachelors and nine (9) years or more experience; Masters and seven (7) years or more experience ; PhD or JD and four (4) years or more experience.\nTS/SCI with Polygraph.\nProven experience building production web applications with ReactJS and modern JavaScript/TypeScript.\nStrong proficiency in Python, with experience developing backend services and APIs (e.g., FastAPI, Flask, or Django).\nHands-on experience with LangChain, LangGraph, and LangSmith, or comparable LLM orchestration and observability frameworks.\nFamiliarity with vector databases, embeddings, and retrieval-augmented generation (RAG) architectures.\nExperience with CI/CD pipelines and cloud deployment on AWS or Azure.\nUnderstanding of secure development practices and compliance requirements.\n\nTarget salary range: $180,001 - $220,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.","company":"SAI","rawCompany":"sai","city":"Reston","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-10-21T11:51:24.658Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Web Application Developer","description":"Job ID: 2618095\n\nLocation: Reston, VA, US\n\nDate Posted: 2026-10-19\n\nCategory: Software\n\nSubcategory: SW Engineer\n\nSchedule: Full-Time\n\nShift: Day Job\n\nTravel: No\n\nMinimum Clearance Required: TS.SCI_wPoly\n\nClearance Level Must Be Able to Obtain: None\n\nPotential for Remote Work: ORA_ON_SITE\n\nDescription\n\nQVine, an SAIC company, is seeking an experienced Full Stack Web Application Developer to join our team. This role involves hands-on technical expertise in building modern, scalable web applications with a focus on AI-driven features. The ideal candidate combines strong front-end development skills in ReactJS with robust Python backend experience, including the design and integration of LLM-powered applications using LangChain, LangGraph, and LangSmith.\n\nKey Responsibilities:\n\nFront-End Development: Design, build, and maintain responsive, user-friendly web interfaces using ReactJS, including state management, component architecture, and integration with RESTful and streaming APIs.\nPython Backend Development: Develop and maintain scalable backend services in Python, exposing clean APIs to support front-end and AI-driven functionality.\nLLM Application Engineering: Design, implement, and optimize AI-powered features using LangChain and LangGraph, including building conversational agents, retrieval-augmented generation (RAG) pipelines, and multi-step agentic workflows.\nAPI Design & Integration: Build and maintain well-documented APIs that connect front-end applications with backend services and third-party LLM providers.\nCI/CD & Deployment: Contribute to continuous integration and continuous delivery pipelines to streamline code deployment, testing, and release cycles for web applications.\nCloud Deployment: Deploy and maintain web applications and backend services in cloud environments (AWS and/or Azure), ensuring high availability, security, and cost efficiency.\nSecurity & Compliance: Collaborate with the cybersecurity team to embed best practices into the development lifecycle, including secrets management, secure API design, vulnerability scanning, and compliance automation.\n\nQualifications\n\nBachelors and nine (9) years or more experience; Masters and seven (7) years or more experience ; PhD or JD and four (4) years or more experience.\nTS/SCI with Polygraph.\nProven experience building production web applications with ReactJS and modern JavaScript/TypeScript.\nStrong proficiency in Python, with experience developing backend services and APIs (e.g., FastAPI, Flask, or Django).\nHands-on experience with LangChain, LangGraph, and LangSmith, or comparable LLM orchestration and observability frameworks.\nFamiliarity with vector databases, embeddings, and retrieval-augmented generation (RAG) architectures.\nExperience with CI/CD pipelines and cloud deployment on AWS or Azure.\nUnderstanding of secure development practices and compliance requirements.\n\nTarget salary range: $180,001 - $220,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.","datePosted":"2026-10-21T11:51:24.658Z","dateModified":"2026-10-21T11:51:24.658Z","hiringOrganization":{"@type":"Organization","name":"SAI","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Reston","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"625b6d03e55f54b93fd81190"},"url":"https://jobsearcher.com/jobs/625b6d03e55f54b93fd81190"}}