Backend Developer (Node.js) | AGP

Winzons; India; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Winzons is hiring a Backend Developer in India with 3+ years of experience to build secure, scalable enterprise-grade applications. You will work on blockchain integration, tokenization, and Web3 solutions while shaping backend services and APIs.

The role emphasizes REST/GraphQL APIs, microservices, and robust security practices in a collaborative tech-focused environment. Strong knowledge of databases and container orchestration is required.

Qualifications

• Strong expertise in Node.js (Express.js or NestJS).
• Experience with REST API and GraphQL development.
• Proficiency in PostgreSQL, MySQL, and MongoDB.
• Experience designing microservices and distributed systems.
• Familiarity with Docker, Kubernetes, and CI/CD pipelines.
• Blockchain integration experience and wallet interactions are a plus.

Responsibilities

• Design, develop, test, and maintain scalable backend services using Node.js.
• Build and manage RESTful APIs and/or GraphQL APIs for enterprise-grade applications.
• Develop microservices and distributed backend architectures for high-availability systems.
• Optimize application performance, scalability, reliability, and security.

Skills

Node.js

REST APIs

GraphQL

PostgreSQL

MySQL

MongoDB

Microservices

Docker

Kubernetes

CI/CD

Blockchain

Web3

Wallet Integration

Security

RBAC

API Security

Smart Contract Integration

Express.js

NestJS

Job description

About the Role

AGP is hiring a Backend Developer. This is a full-time opportunity for professionals with 3+ years of backend development experience and hands-on expertise in Node.js, REST APIs, databases, and blockchain integration. The role offers the opportunity to build secure, scalable, and enterprise-grade applications while working on innovative blockchain, tokenization, and Web3 solutions in a collaborative technology-driven environment.

Key Responsibilities

Backend Development

• Design, develop, test, and maintain scalable backend services using Node.js.
• Build and manage RESTful APIs and/or GraphQL APIs for enterprise-grade applications.
• Develop microservices and distributed backend architectures for high-availability systems.
• Optimize application performance, scalability, reliability, and security.

Database Management

• Architect, design, and manage databases including PostgreSQL, MySQL, and MongoDB.
• Implement efficient data models, indexing strategies, and query optimization techniques.
• Ensure database integrity, backup, recovery, and performance monitoring.

Blockchain & Smart Contract Integration

• Integrate backend systems with blockchain networks and smart contracts.
• Develop services for smart contract interactions, including read/write operations and event monitoring.
• Work with blockchain developers to support tokenization platforms, digital asset management systems, and Web3 applications.
• Implement secure transaction workflows, wallet integrations, and blockchain data indexing.
• Design backend APIs that interact with ERC-20, ERC-721, ERC-1155, ERC-3643, and other token standards.
• Support integration with blockchain infrastructure providers and node services.

Security & Compliance

• Implement authentication, authorization, RBAC (Role-Based Access Control), and API security mechanisms.
• Apply encryption standards and secure coding practices.
• Ensure compliance with security, audit, and regulatory requi rements.
• Monitor and mitigate vulnerabilities across backend services.

Required Qualifications

• Strong expertise in Node.js (Express.js or NestJS).
• REST API and GraphQL development.
• PostgreSQL, MySQL, MongoDB.
• Microservices architecture.
• Distributed systems.
• Git and version control.
• Authentication & Authorization.
• RBAC implementation.
• API Security.
• Smart Contract Integration.
• Docker.
• Kubernetes.
• CI/CD pipelines.
• Blockchain Infrastructure.
• Wallet Integration.
• ERC-20, ERC-721, ERC-1155, ERC-3643.
• Web3 Development.

Soft Skills

• Strong analytical thinking.
• Excellent debugging skills.
• Problem-solving mindset.
• Good communication skills.
• Team collaboration.
• Attention to detail.
• Ability to work in agile environments.

Experience

• 34 Years (Backend Development)
• Blockchain Experience: Preferred (1+ Years)

Employment Type: Full-Time ONLINE