Full-Stack Developer
- Work Schedule: Onsite
- Clearance: CBP Full BI
- Location: Ashburn, VA
- End Client: DHS/CBP Summary Strong experience in modern web development and applied AI integration. The ideal candidate will be comfortable building scalable, data-driven web applications using React , Next.js , NestJS , and MongoDB , and will have hands-on experience implementing Retrieval-Augmented Generation (RAG) systems and prompt engineering for AI-driven features. You’ll work across the stack to design, develop, and deploy robust products that leverage both front-end interactivity and intelligent backend systems. Responsibilities
- Design, build, and maintain scalable full-stack applications using js, React, NestJS, and MongoDB.
- Integrate and optimize AI-based features, including RAG pipelinesand LLM-powered
- Develop and tune prompt templates, retrieval chains, and embeddings for contextual AI performance.
- Collaborate with product managers, designers, and data scientists to translate requirements into technical solutions.
- Implement secure APIs, efficient data models, and robust backend services.
- Ensure application performance, security, and reliability across deployments.
- Participate in code reviews, testing, and CI/CD pipelines.
- Stay up to date with modern frameworks, AI integration patterns, and best practices in full-stack engineering.
- 3–5 years of experience as a Full Stack Engineeror similar role.
- Strong proficiency in JavaScript/TypeScript, React, js, NestJS, and MongoDB.
- Experience building and deploying RAG-based AI systems(e.g., integrating vector databases, embedding models, or LLM APIs).
- Familiarity with prompt engineeringtechniques for optimizing AI outputs.
- Strong understanding of RESTful and GraphQL API design.
- Experience with version control (Git), containerization (Docker), and cloud platforms (AWS, GCP, or Azure).
- Familiarity with LangChain, LlamaIndex, or similar frameworks for AI application development.
- Experience with vector databases(e.g., Pinecone, Weaviate, Milvus).
- Knowledge of CI/CD pipelinesand DevOps practices.
- Experience working in Agile/Scrum
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