API Developer

Required Skills:

• 3+ years of experience in backend or API development

Strong experience building RESTful APIs (GraphQL is a plus)

• Proficiency in at least one backend language/framework:
• Java (Spring Boot)
• Node.js (Express/NestJS)
• .NET Core
• Python (FastAPI, Django, Flask)
• Experience with API design principles and best practices
• Strong understanding of HTTP protocols, status codes, and JSON
• Experience with authentication & authorization (OAuth2, JWT)
• Hands-on experience with databases (SQL and/or NoSQL)
• Familiarity with message queues (Kafka, RabbitMQ) is a plus
• Experience with version control systems (Git)
• Knowledge of CI/CD pipelines and automated testing
• Understanding of microservices architecture

Key Responsibilities:

• Design, develop, test, and maintain RESTful and/or GraphQL APIs
• Build scalable, secure, and high-performance backend services
• Define API specifications using OpenAPI/Swagger
• Implement authentication and authorization (OAuth 2.0, JWT, API keys)
• Integrate third-party services and internal systems via APIs
• Ensure API performance, reliability, and scalability
• Implement logging, monitoring, error handling, and API versioning
• Collaborate with frontend, mobile, DevOps, and QA teams
• Participate in code reviews and enforce coding standards
• Troubleshoot and resolve production issues
• Contribute to API documentation and developer portals

Good to Have:

• Experience with cloud platforms (AWS, Azure, or GCP)
• Knowledge of API gateways (Apigee, Kong, AWS API Gateway)
• Familiarity with Docker and Kubernetes
• Experience with rate limiting, caching, and throttling
• Exposure to event-driven architectures
• Prior experience in fintech, e-commerce, or SaaS domains