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Full Stack Developer - MERN Stack

Full Stack Developer - MERN Stack

RealtyAI / AiplanetGurgaon
12 days ago
Job description

Role Overview :

We are seeking a passionate Full-Stack Developer who is proficient in the MERN stack (MongoDB, Express, React, Node.js), with added knowledge or interest in AWS cloud services, Large Language Models (LLMs), and AI Agents / intelligent assistants. You will be responsible for designing, developing, deploying, and maintaining full-stack features, as well as integrating AI components (LLMs or agents), and optionally managing cloud infrastructure to support scaling and reliability.

Key Responsibilities :

  • Design, build, test, and maintain full-stack web applications using the MERN stack (MongoDB, Express, React, Node.js).
  • Define and implement RESTful APIs.
  • Integrate front-end components with back-end logic, ensuring seamless UX and performance.
  • Develop, fine-tune, and integrate LLM-based features (e.g., text generation, summarization, chat, knowledge retrieval).
  • Build or contribute to AI Agents : automation, orchestration, multi-step reasoning workflows.
  • Work with AWS services : e.g., EC2 / Lambda / ECS, S3, IAM, API Gateway, DynamoDB / RDS as needed.
  • Deploy, monitor, and maintain applications; ensure scalability, reliability, and security.
  • Write clean, maintainable, well-documented code; conduct code reviews.
  • Collaborate with product, UX / design, QA, and AI research teams to deliver features from concept to production.
  • Stay updated on AI and full-stack development trends; suggest improvements and new technologies.

Required Skills & Qualifications :

  • Strong proficiency in JavaScript , on both front-end and back-end.
  • Experience in using React for building responsive UI.
  • Solid experience with Node.js and Express.js for server-side development.
  • Experience with MongoDB or another NoSQL DB; understanding of schema design, indexing, performance.
  • Good understanding of version control systems (Git), and collaborative software development.
  • Familiarity with REST API design.
  • Strong problem solving, debugging, and optimization skills.
  • Good communication skills and ability to work in a team.

    • Optional / Desired Skills (Nice to Have) :

  • Experience with AWS / cloud infrastructure : deploying services, serverless patterns, containers, scaling, cost optimization.
  • Familiarity with LLMs (e.g. OpenAI, Hugging Face, Llama, etc.) : usage, fine-tuning, prompt engineering.
  • Experience building or orchestrating AI agents, multi-step workflows, or tools that coordinate multiple AI-powered components.
  • Knowledge of CI / CD pipelines, automated testing frameworks.
  • Understanding of security best practices (authentication, authorization, data protection).
  • Experience with other databases (SQL, Redis) or caching, message queues (e.g. Kafka, RabbitMQ).
  • Experience with performance optimization (front-end, back-end) and monitoring tools.

    • (ref : hirist.tech)

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    Mern Stack Developer • Gurgaon