A Data Analysis & Visualization Developer interprets and analyzes data to provide actionable insights. They design, create, and implement data-driven solutions, transforming complex data sets into understandable visual representations such as charts, graphs, and infographics. Their work aids in decision-making and strategy development. They use programming languages like Python or R, and tools like Tableau or Power BI. They also ensure data accuracy, predict trends, and often work closely with other teams to understand their data needs. Their role is crucial in helping businesses understand their performance, customer behavior, and market trends.