Hassan A is an experienced Software Architect with over 10 years of expertise designing and building scalable, cloud-native applications across web, mobile, and distributed systems. He specializes in architecting microservices-based platforms using technologies such as Node.js, Express.js, NestJS, Django, FastAPI, and Ruby on Rails, while developing modern frontend applications with React.js, Next.js, Redux, and TypeScript. Hassan has strong experience designing high-performance backend systems and RESTful APIs supported by databases including PostgreSQL, MySQL, MongoDB, Firebase, and graph databases such as OrientDB. His architecture work is complemented by deep cloud and DevOps expertise, leveraging AWS services like Lambda, EC2, S3, RDS, DynamoDB, SNS, and SQS alongside Docker, Kubernetes, CI/CD pipelines (Jenkins, CircleCI, GitHub), and message queues such as RabbitMQ to build resilient and scalable systems. In recent projects, he has led the integration of Generative AI capabilities into applications, building LLM-powered systems using LangChain, HuggingFace, Llama, Mistral, and vector databases like ChromaDB and FAISS to implement RAG pipelines, intelligent chatbots, and automation workflows. He also brings experience developing cross-platform mobile applications with React Native and Expo, as well as implementing caching, rate limiting, and performance optimizations using Redis and distributed system design patterns. Throughout his career, Hassan has demonstrated strong technical leadership by mentoring engineering teams, defining architecture standards, and guiding cross-functional teams through complex system design challenges while delivering high-performance, reliable software solutions.