API Developer

🚀 Hiring: API Developer (5–7 Years Experience) Location: Richmond, VA Onsite Job Type: Contract Experience Level: Mid-Senior (5–7 years) 🔍 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