Assesses the impact of application changes across integrated workflows; develops and executes unit, integrated, regression, and user-acceptance testing and validates production outcomes. ("Nicotine products" include, but are not limited to: cigarettes, cigars, pipes, chewing tobacco, e-cigarettes, vaping products, hookah, and nicotine replacement products (e.g., nicotine gum, nicotine patches, nicotine lozenges, etc.).