● Engineered backend systems for 10M+ users, using Node.js, TypeScript, Factory and Singleton design patterns.
● Architected microservices with GraphQL Federation, RabbitMQ; employed Broker and API Gateway patterns.
● Crafted React/Next.js apps, applying MVC and Redux state patterns to enhance scalability and engagement.
● Developed CI/CD pipelines with AWS, Fargate, ECS, Docker, using Chain of Responsibility for process management.
● Optimized PostgreSQL, MongoDB; implemented Query Object, Repository patterns in high-load db environments.
● Implemented robust end-to-end testing with TDD using Postman, Playwright and Jest to ensure product reliability.
● Tech Stack: TypeScript, GraphQL, Node.js, React, Next.js, PostgreSQL, MongoDB, AWS, Docker, Jenkins, RabbitMQ