Gassan Quintar

Building Scalable AI Solutions | GenAI, RAG & LLM Orchestration | AWS Certified 2x: AI & Cloud Practitioner | Senior Full-stack Engineer

Madrid, Community of Madrid, Spain

About

Throughout a career that began in 2006, the focus has consistently remained on evolving alongside technology. This journey has led from the foundations of full-stack development to put the focus on GenAI, RAG pipelines, and the AWS ecosystem. By merging experience in software architecture with cutting-edge AI, the goal is to build scalable systems that help organizations leverage the transformative power of LLMs and RAG. What is being built today: GenAI & Orchestration: Developing intelligent conversational assistants using LangChain and LangGraph to automate complex reasoning and project management tasks. RAG Architectures: Implementing Retrieval-Augmented Generation pipelines for specialized fields like Legal and Medical data, ensuring context-aware and accurate AI responses. AWS Cloud Ecosystem: Designing scalable, event-driven solutions across the AWS landscape—utilizing Lambda, Step Functions, S3, Cognito, and OpenSearch to power document understanding and real-time data processing. Engineering Excellence: Applying Hexagonal Architecture and Clean Code principles to ensure that AI integrations are modular, testable, and production-ready.A  Global Perspective on Adaptation: Having lived and worked in Argentina, Peru, and Spain, a multicultural approach to problem-solving has become a core professional pillar. This international trajectory has fostered an ability to adapt—a trait essential for navigating the current AI era.

Experience