RightJoin is an AI-powered tool that offers customized mock interviews to data scientists for improving their interview skills. It provides instant feedback and detailed performance assessments to help users achieve their career goals. The tool also offers personalized interview sessions based on the user's resume and job posting. RightJoin's blog covers various topics related to data science and provides insights into optimizing strategies for ride-sharing platforms, analyzing pay equity, and predictive maintenance for industrial equipment, among others.