Full-Stack Developer

2 days ago

Reston, VA, United States RMantra Solutions Inc Full time

Full-Stack Developer at RMantra Solutions

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. Youll 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
Responsibilities
  • Design, build, and maintain scalable full?stack applications using JavaScript, 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.

Qualifications

Required:

  • 35 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).

Preferred

  • 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

For more information please contact us at HR@rmantras.com

Seniority level

Mid?Senior level

Employment type

Full?time

Job function

Engineering and Information Technology

Industries

IT Services and IT Consulting

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