Application Architecture & Systems Design: Expertise in designing scalable, secure, resilient, and highly available distributed systems, including application decomposition, domain-driven design, integration patterns, and modern architectural styles such as microservices and event-driven architectures. Artificial Intelligence & Machine Learning: Strong understanding of AI/ML concepts, including supervised and unsupervised learning, deep learning, Generative AI, Large Language Models (LLMs), embeddings, vector databases, Retrieval-Augmented Generation (RAG), prompt engineering, AI orchestration, model evaluation, and AI governance.