A Knowledge Extraction developer designs and develops systems to extract, analyze, and interpret complex data from various sources. They utilize machine learning and natural language processing to convert unstructured data into structured information. This involves creating algorithms to identify patterns, relationships, and insights. They also ensure data quality and accuracy, and may work on enhancing the efficiency of knowledge extraction tools and methodologies. Additionally, they collaborate with other stakeholders to understand their data needs and translate these into technical requirements. Their work aids in decision-making, trend analysis, and the development of AI technologies.