Backend Developer

Role Overview

As a Backend Developer, you will be responsible for developing robust server-side applications, REST APIs, database architecture, integrations, and backend business logic.

You will work closely with Frontend Developers, Flutter Developers, UI/UX Designers, QA Engineers, Project Managers, and clients to deliver reliable and scalable digital products.

Key Responsibilities

• Develop, maintain, and optimize backend applications using Node.js and Express.js.
• Design and develop secure and scalable RESTful APIs for web and mobile applications.
• Build reusable backend services and business logic.
• Design, develop, and optimize databases using MongoDB and MySQL.
• Create efficient database schemas, queries, indexes, and relationships.
• Implement authentication and authorization using JWT, sessions, cookies, and role-based access control.
• Develop APIs for frontend web applications and mobile applications.
• Integrate third-party APIs and services such as:
• Payment gateways
• SMS services
• Email services
• WhatsApp APIs
• Google APIs
• Cloud/storage services
• Other external business APIs
• Handle file uploads, image/document processing, and cloud storage integrations.
• Implement validation, error handling, logging, and security best practices.
• Optimize APIs and database queries for performance and scalability.
• Work with developers to troubleshoot and resolve backend and integration issues.
• Write clean, maintainable, reusable, and well-documented code.
• Participate in code reviews and follow development standards.
• Debug production issues and provide timely fixes.
• Collaborate with QA teams for testing, debugging, and deployment.
• Maintain API documentation using tools such as Postman/Swagger.
• Work with Git/GitHub/GitLab for source-code management.
• Assist with deployment and server-side configuration when required.
• Understand project requirements and convert them into technical solutions.
• Coordinate with the Project Manager and development team to ensure timely project delivery.

Required Technical SkillsBackend Development

• Strong hands-on experience with Node.js
• Strong knowledge of Express.js
• Good understanding of JavaScript / ES6+
• Experience developing REST APIs
• Understanding of asynchronous programming and event-driven architecture

Database

• Strong experience with MongoDB
• Good working knowledge of MySQL
• Database design and normalization
• Query optimization and indexing
• Experience with Mongoose or similar ODM/ORM tools

Authentication & Security

• JWT authentication
• Session and cookie management
• Role-based access control
• Password encryption/hashing
• API security
• Input validation and sanitization
• Understanding of common web security vulnerabilities

API & Integration

• REST API development
• Third-party API integration
• Payment gateway integration
• SMS/Email API integration
• Webhooks
• API testing using Postman
• API documentation

Development Tools

• Git / GitHub / GitLab
• Postman
• VS Code or similar IDE
• npm
• Basic Linux/CLI knowledge

Good to Have

• Experience with PM2
• Experience with AWS or other cloud platforms
• Knowledge of Docker
• Redis/caching experience
• Experience with CI/CD
• Experience with WebSockets / Socket.IO
• Experience with Firebase
• Experience integrating payment gateways such as Razorpay, Cashfree, etc.
• Experience with WhatsApp Business APIs
• Knowledge of React/Angular or Flutter integration
• Experience working on CRM, ERP, LMS, HRMS, e-commerce, or SaaS products
• Understanding of microservices architecture
• Basic knowledge of server deployment and Nginx

AI & Modern Development Expectations

The candidate should be comfortable using modern AI-assisted development tools such as:

• ChatGPT
• Claude
• Gemini
• GitHub Copilot
• Cursor

AI tools should be used to improve productivity while maintaining code quality, security, maintainability, and proper technical understanding.

Required Soft Skills

• Strong problem-solving and debugging skills
• Good communication skills
• Ability to understand business requirements
• Ability to work independently as well as within a team
• Good analytical and logical thinking
• Ability to estimate development tasks
• Willingness to learn new technologies
• Ability to work in a project-driven environment
• Good documentation and reporting skills
• Ability to manage multiple projects/tasks when required

Education

• B.Tech / B.E. / MCA / BCA / M.Tech / equivalent qualification in Computer Science, IT, or a related field.

Candidates with strong practical development experience may also be considered irrespective of their educational background.

Experience

3–5 years of relevant backend development experience.

Candidates with experience in a software development company, IT services company, SaaS organization, or product-based environment will be preferred.

What You Will Work On

You will get an opportunity to work on diverse digital products including:

• Custom Web Applications
• Mobile Application Backends
• CRM Systems
• ERP/Business Management Solutions
• E-commerce Platforms
• LMS/E-learning Platforms
• Payment & API Integrations
• SaaS Applications
• AI-enabled Applications
• Custom Business Automation Solutions

Why Join Dextrous?

• Work on diverse national and international projects
• Opportunity to work across multiple industries and technologies
• Exposure to modern web and mobile application architectures
• Collaborative development environment
• Opportunity to work with AI-assisted development tools
• Learning and professional growth opportunities
• Work on real-world, business-critical applications

Key Performance Indicators (KPIs)

• Quality and maintainability of backend code
• API performance and reliability
• Development task completion within estimated timelines
• Number of production bugs/issues
• Database performance and optimization
• API security and stability
• Code review quality
• Documentation quality
• Successful integration with frontend/mobile applications
• Timely resolution of technical issues

Pay: ₹35,000.00 - ₹50,000.00 per month

Work Location: In person