WANTED – BACKEND DEVELOPER Madurai – Office Work Only
Position: Backend Developer
Experience: 3+ Years
Location: Madurai
Work Mode: Work from Office only
Working Hours: 10:30 AM – 8:30 PM
Salary: ₹ 25000/ - ₹30,000/month *(based on skills & experience)*
About the Role
We are looking for a solid and experienced Backend Developer to develop, maintain and secure the backend infrastructure of our mobile application.
The candidate will be responsible for building secure, scalable and reliable APIs, database systems, payment integrations and backend services supporting digital transactions and other application features.
- Advanced SQL queries
- Joins, indexes and relationships
- Database design and normalization
- Query optimization
- Transactions and concurrency handling
- Data integrity and backup/recovery concepts
3. API Development
- REST API development
- JSON request/response handling
- API authentication and authorization
- API versioning
- Third-party API integration
- Payment Gateway API integration
- Webhook implementation and verification
- API error handling and logging
4. Security – MUST HAVE
The candidate must have practical knowledge of:
- JWT / OAuth 2.0
- Role-Based Access Control (RBAC)
- Secure authentication & authorization
- API rate limiting
- Input validation and sanitization
- SQL Injection prevention
- XSS / CSRF protection
- Secure password hashing
- HTTPS / TLS
- Encryption of sensitive information
- Secure API key & secret management
- OWASP API Security practices
- Secure webhook verific