Senior API Engineer

Job Title: Senior API Engineer Location: New Jersey - Remote Contract Description: API Management - API Gateway , APIGEE & Designing and deploying APIs as part of a microservices architecture . React, HTML , JS , NodeJS, Python , Lambda , CI/CD & RESTful API and GraphQL development • Design, develop, and maintain scalable RESTful APIs and GraphQL APIs using modern frameworks and best practices. • Develop backend services using Node.js (Express/Nest.js), FastAPI (Python-based services), Ariadne (GraphQL APIs), and Golang (Streaming services). • Integrate with Databricks to expose and manage OLAP (Online Analytical Processing) workloads, enabling API-driven data querying and analytics at scale. • Architect APIs following metadata-driven design principles, ensuring that data can be dynamically exposed to users inside or outside the system while maintaining dynamic authentication mechanisms. • Deploy and scale API services using AWS Lambda, Kubernetes (EKS), and AWS Bedrock for serverless and microservices-based architectures. • Implement authentication and authorization best practices (OAuth2, JWT, API Gateway) while supporting dynamic authentication models based on user roles and access control. • Design and optimize database interactions using SQL/NoSQL databases (MongoDB, PostgreSQL, DynamoDB). • Develop CI/CD pipelines for automated API deployment using AWS services (CodePipeline, Bedrock, CloudFormation). • Monitor and improve API performance, logging, and error handling using Prometheus, Grafana, and ELK stack. • Work on AI-driven API integrations including Recommender Systems, LLM-based AI Agents, and AI-powered Image & Video Processing workflows. • Collaborate with front-end engineers, data scientists, and DevOps teams to ensure seamless API integration and scalable deployments. Must have: • 5+ years of experience in API development with GraphQL (Ariadne) and RESTful services. • Strong hands-on experience with Node.js (Express/Nest.js), FastAPI (Python), and Golang. • Proficiency in API design principles, focusing on metadata-driven frameworks that allow dynamic data exposure with adaptable authentication models. • Experience with AWS Lambda, AWS Bedrock, and Kubernetes (EKS) for serverless and microservices architectures. • Hands-on experience designing scalable and modular API architectures. • Expertise in OAuth2, JWT, API Gateway, and dynamic authentication mechanisms. • Strong knowledge of OLAP workloads and Databricks integration for API-driven data analytics. • Experience with SQL/NoSQL databases (MongoDB, PostgreSQL, DynamoDB). • CI/CD automation expertise (Jenkins, GitHub Actions, AWS CodePipeline). • Proficiency in API testing frameworks (Postman, Newman, Jest, Mocha, PyTest). • Strong debugging, logging, and monitoring skills (Grafana, Prometheus, ELK stack). • Nice to Have • Experience with GraphQL federation and Apollo Server. • Knowledge of AI/ML APIs and LLM-based chatbot APIs (OpenAI, Hugging Face, LangChain). • Experience with streaming technologies (Kafka, WebSockets, Golang-based streaming). • Prior work with AI-powered data mapping, recommender systems, and real-time processing APIs.