A Data Mining/Machine Learning developer designs, develops, and implements machine learning models to analyze large amounts of data. They extract valuable insights by identifying patterns and trends. Their responsibilities include data cleaning, data exploration, choosing suitable models, and training these models with data. They also test and optimize these models, interpret results, and present findings in a comprehensible manner. They work closely with data scientists and engineers to integrate machine learning capabilities into applications and systems. Their aim is to improve automation and decision-making, contributing to the achievement of business goals.