MERN Stack Developer

ESP Engineered; Nashik District; On-site; INR 800,000 - 1,200,000; Full time

Job summary

ESP Engineered is looking for a MERN Stack Developer with 2-5 years of experience to build scalable web applications. The role involves developing applications with MongoDB, Express.js, React, and Node.js, integrating marketing platforms, and implementing AI features. Candidates should have strong skills in API development and collaborating with multi-functional teams. Preferred experience includes familiarization with various AI APIs and understanding of web architecture best practices.

Qualifications

• 2–5 years of experience as a MERN Stack Developer.
• Strong experience with Node.js, Express.js, and React.
• Proficiency with MongoDB and API development.

Responsibilities

• Develop and maintain MERN applications.
• Build and integrate RESTful APIs.
• Ensure application security and performance.

Skills

Node.js

React

Express.js

MongoDB

API development

Web architecture

Git

Job description

Job Title: MERN Stack Developer (2–5 Years Experience)

Role Summary:

We are seeking a MERN Stack Developer with 2–5 years of experience in building scalable web applications, integrating marketing platforms, and enabling AI-powered features using modern APIs.

Key Responsibilities:

• Develop and maintain applications using MongoDB, Express.js, React, and Node.js
• Build and integrate RESTful and third-party APIs
• Integrate marketing platforms such as Meta Ads, Google Ads, and analytics APIs
• Implement AI integrations (LLMs, chatbots, automation, recommendations)
• Design and optimize MongoDB schemas and queries
• Ensure application security, scalability, and performance
• Collaborate with frontend, product, and design teams

Core Skills:

• Strong experience with Node.js, Express.js, and React
• Proficiency with MongoDB and data modeling
• Experience with API development and integrations
• Solid understanding of web architecture and security best practices
• Git and modern deployment workflows

AI & Trending Skills:

• Experience with AI APIs (OpenAI, Gemini, Claude, etc.)
• Understanding of prompt engineering and AI workflows
• Familiarity with embeddings, semantic search, and RAG
• Exposure to vector databases (Pinecone, FAISS, Weaviate)

Good to Have:

• Experience with Meta Marketing API, Google Ads API, or similar AdTech platforms
• Background jobs, queues, and cron handling