API Developer (5–7 Years Experience)

About the Role

We are looking for a highly skilled API Developer to design and build scalable, secure, and high-performance APIs. You will work on modern backend systems, leveraging microservices architecture and cloud technologies to deliver robust solutions.

Key Responsibilities

• Design, develop, and maintain RESTful APIs and GraphQL services
• Build backend systems using Python, Java, or Go
• Implement secure authentication and authorization (OAuth 2.0, JWT, API Keys, SAML)
• Develop scalable microservices and event-driven architectures
• Optimize APIs for performance using caching, load balancing, and CDN strategies
• Integrate systems using message queues such as Kafka
• Maintain API documentation using Swagger/OpenAPI or Postman
• Collaborate with cross-functional teams including Product, DevOps, and QA
• Ensure code quality through reviews and best practices

Required Skills

• Strong experience with Python, Java, or Go
• Deep understanding of RESTful API design and HTTP protocols
• Experience with GraphQL, WebSockets, gRPC
• Knowledge of OAuth 2.0, JWT, API security best practices
• Experience with SQL & NoSQL databases (PostgreSQL, DynamoDB, Redis)
• Hands-on experience with Docker and Kubernetes
• Familiarity with CI/CD pipelines and Git/GitHub
• Experience with Kafka or similar messaging systems

Preferred Qualifications

• Experience with cloud platforms (AWS, Azure, or GCP)
• Knowledge of GraphQL Federation or Service Mesh
• Prior experience in financial services (Capital One or similar)

What We’re Looking For

• 5–7 years of hands-on software development experience
• Proven track record of building scalable, production-grade APIs