Abdul Rafay

I’m a Full Stack Lead Engineer with over 5 years of experience building scalable, high-performance applications across frontend, backend, and cloud. I focus on modern React.js/Next.js development paired with secure, efficient APIs and thoughtful system design.

In my current role, I craft responsive user interfaces with React JS and Next JS to improve user engagement, and I design core business logic with ERDs and module designs for maintainability. I build robust backend services using Node.js, NestJS, Express.js, REST API, and GraphQL.

I regularly optimize performance and reliability using techniques like code splitting and lazy loading, along with AWS (S3, EC2, RDS, Lambda, ECS Fargate), Docker, Nginx, and automated delivery via GitHub Actions. For quality, I work with Jest, React Testing Library, and Cypress to keep testing strong and dependable.

I also bring an AI/ML edge: integrating vector embeddings for similarity search and using prompt engineering/RAG approaches to reduce hallucinations. Previously, I improved outcomes like a strong testing success rate, faster response times, and end-to-end integrations through rigorous code reviews and cross-team collaboration.