MERN & NestJS Full Stack Developer

Experience: 4–5 Years
Job Type: Full-Time
Domain: E-Commerce

Job Description

We are looking for an experienced Full Stack Developer with 4–5 years of hands-on experience specializing in React, Next.js, Node.js and NestJS.

You will be responsible for developing and maintaining a scalable, secure and high-performance E-Commerce platform, working across front-end, backend, databases, search infrastructure and AWS cloud environments.

Key Responsibilities

• Develop scalable web applications using React.js, Next.js, Node.js and NestJS.
• Build responsive front-end applications using Next.js SSR/SSG.
• Design and develop modular backend services using NestJS and microservices architecture.
• Build automated server-side Barcode and QR Code generation for SKUs, product labels, shipping packages and GST invoices.
• Manage Barcode/QR rendering in SVG/PNG format and secure storage using AWS S3.
• Design and optimize Elasticsearch / OpenSearch for large E-Commerce catalogs.
• Implement SKU search, fuzzy search, auto-suggestions, faceted filtering and multi-attribute indexing.
• Design secure and high-performance REST and GraphQL APIs.
• Work extensively with MongoDB, PostgreSQL and Redis.
• Optimize database queries, caching strategies and application performance.
• Deploy, manage and scale applications using AWS.
• Configure and maintain EC2, Route 53, S3, ALB and Auto Scaling Groups.
• Implement secure authentication and authorization using JWT, RBAC, password hashing and encryption.
• Integrate payment gateways including payment status tracking, refunds and webhooks.
• Integrate shipping and logistics APIs.
• Build pincode serviceability and high-volume product catalog workflows.
• Develop Order Management Systems covering inventory synchronization, cancellations and returns.
• Implement GST-compliant invoicing workflows including CGST, SGST, IGST and credit notes.
• Optimize rendering performance, API response times, search latency and database execution for high-volume transactions.

Required Skills

• 4–5 years of professional full-stack development experience.
• Strong experience with React.js, Next.js, Node.js and NestJS.
• Strong knowledge of TypeScript and modern JavaScript.
• Hands-on experience with MongoDB, PostgreSQL and Redis.
• Strong experience with Elasticsearch / OpenSearch.
• Experience with dynamic Barcode and QR Code generation.
• Experience with bwip-js, qrcode, Node Canvas and Web API BarcodeDetector.
• Practical AWS experience with:
• EC2
• Route 53
• S3
• ALB
• ASG
• Strong REST/GraphQL API development experience.
• Knowledge of JWT, RBAC and data encryption.
• Experience with payment gateways, logistics APIs and E-Commerce workflows.
• Understanding of microservices and distributed systems.

Preferred Skills & Experience

• Experience working on large-scale B2B or B2C E-Commerce platforms.
• Experience handling high-volume SKUs and peak traffic.
• Experience with RabbitMQ or Kafka.
• Experience with asynchronous indexing and background job processing.
• Experience with batch label and QR generation.
• Experience with Docker and GitHub Actions.
• Strong understanding of microservices and distributed system design.

Pay: From ₹40,000.00 per month

Benefits:

• Flexible schedule
• Leave encashment
• Paid sick time
• Work from home

Work Location: In person