Full-Stack Developer

Full-Stack Developer at RMantra Solutions

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 Mongo

DB, 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.

• Work Schedule:
  
  Onsite
• Clearance: CBP Full BI
• Location:
  
  Ashburn, VA
• End Client: DHS/CBP

• Design, build, and maintain scalable full‑stack applications using JavaScript, React, NestJS, and Mongo
  
  DB.
• Integrate and optimize AI‑based features, including RAG pipelines and 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.

Required:

• 3–5 years of experience as a Full Stack Engineeror similar role.
• Strong proficiency in JavaScript/Type Script, React, js, NestJS, and Mongo
  
  DB.
• Experience building and deploying RAG‑based AI systems (e.g., integrating vector databases, embedding models, or LLM APIs).
• Familiarity with prompt engineering techniques for optimizing AI outputs.
• Strong understanding of RESTful and Graph
  
  QL API design.
• Experience with version control (Git), containerization (Docker), and cloud platforms (AWS, GCP, or Azure).

Preferred

• Familiarity with Lang Chain, Llama Index, or similar frameworks for AI application development.
• Experience with vector databases (e.g., Pinecone, Weaviate, Milvus).
• Knowledge of CI/CD pipelines and Dev Ops practices.
• Experience working in Agile/Scrum

For more information please contact us at

Mid‑Senior level

Full‑time

Engineering and Information Technology

IT Services and IT Consulting

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