Darrin Baines is a subject matter expert in health economics specialising in HTA modelling, cost-effectiveness analysis and dynamic model validation. I help pharma, governments and consultancy teams build decision-ready models with transparent structure and defensible results. My work strengthens model conceptualisation, construction and verification, ensuring alignment between evidence, assumptions and real-world decision requirements. I develop semantic AI layers that enhance the analytical foundations of health economic models by structuring logic, meaning and relationships within data and assumptions. This enables models that can be interrogated, validated and trusted an essential requirement for credible decision-making in pharmaceutical and health system environments. My approach integrates mathematics, computer science, economics and philosophy, enabling rigorous modelling frameworks grounded in conceptual clarity and methodological precision. I am recognised for conceptual synthesis that unites diverse disciplines, and for leading teams that pair analytical depth with strategic direction to deliver models, frameworks and narratives of enduring value. My work spans academia, pharma, government and consulting, including the design of international programmes, partnerships and predictive modelling systems adopted across global markets. I lead with intellectual precision and strategic foresight, creating structures that turn insight into action and redefine how value, efficiency and outcomes are understood in modern health ecosystems.