Full Stack Developer (MERN + Generative AI)

Company: Paninieight Software Systems Limited

Location: Kolkata, West Bengal

Type: Full-time

Experience: 2+ years

Salary: 23K to 33K

About the role

We're looking for a Full Stack Developer who can build and ship web applications with the MERN stack and integrate Generative AI features into them. You'll work on product features end to end, from the database and APIs to the UI, and help deploy and maintain what you build.

What you'll do
Build and maintain web applications using MongoDB, Express.js, React, and Node.js
Design clean, scalable REST APIs and database schemas
Integrate LLM-based features such as chatbots, RAG pipelines, summarisation, and content generation, using APIs like OpenAI, Anthropic, or Gemini
Write and refine prompts, and handle embeddings, vector search, and context management
Set up and maintain CI/CD pipelines and deploy applications on cloud platforms
Write clean, testable code and take part in code reviews

What we're looking for

Must have




At least 2 years of professional experience with the MERN stack
Strong JavaScript/ES6+ (TypeScript is a plus)
Hands-on experience integrating LLM APIs into real applications
Understanding of REST APIs, authentication (JWT/OAuth), and database design
Proficiency with Git and collaborative workflows
Valuable to have (basic DevOps)
Docker and containerisation basics
CI/CD with GitHub Actions or similar
Deployment experience on AWS, GCP, Azure, or Vercel
Familiarity with Nginx, Linux, and environment management

Bonus
Experience with LangChain, LlamaIndex, or vector databases (Pinecone, Chroma, pgvector)
Experience with Python for AI/ML scripts
Prior work on AI-powered products you can show us

What we offer
Salary 23K to 40K, Depending on Expererience.
Salary AccountLunch in Office
Chance to work on real GenAI products

Pay: ₹23,000.00 - ₹33,000.00 per month

Perks
Food provided
Paid sick time

Work Location: In person

📌 Full Stack Developer Mern + Generative Ai Kolkata (India)
🏢 Cheenta Academy Private
📍 India