Mina Z is a highly skilled Software Engineer with strong expertise in backend systems, cloud infrastructure, AI-powered applications, and scalable web development. She has hands-on experience building and maintaining high-performance systems using Ruby on Rails, Angular, React Native, ASP.NET, Nest.js, JavaScript, Python, C#, and SQL across healthcare, education, and enterprise platforms. Mina has worked extensively with PostgreSQL, MySQL, MongoDB, Firebase, and Redis, optimizing large-scale databases and search infrastructures, including migrating a 200GB OpenSearch layer to PostgreSQL Full-Text Search to achieve sub-100ms latency across billions of medical records while significantly reducing infrastructure costs. She is experienced in designing HIPAA-compliant medical data pipelines, implementing LLM workflows, RAG architectures, LangChain integrations, vector embeddings, and AI-assisted engineering tools. Her cloud and DevOps expertise includes AWS services such as Lambda, Cognito, SQS, EC2, and ECS, alongside Docker and CI/CD pipelines for deployment automation and infrastructure scalability. Mina has also contributed to large-scale LMS platforms serving tens of thousands of users, focusing on performance optimization, server stability, and system scalability. With a strong foundation in object-oriented programming, design patterns, UML, and database architecture, she combines problem-solving, system design, and AI engineering capabilities to deliver reliable, scalable, and cost-efficient software solutions.