For data analysis, I have primarily used Python, particularly leveraging libraries like Pandas for data manipulation and Matplotlib or Seaborn for data visualization. Additionally, I have experience with MySQL for database querying and Power BI for creating interactive dashboards. One project where I effectively used these tools was during my time at TechJar Technologies. I worked on a project that involved analyzing customer purchase data to identify trends and patterns. I used Python to clean and transform the data, MySQL to extract relevant information from the database, and Power BI to create a dashboard that visualized the insights for stakeholders. This project helped the company better understand customer behavior and informed their marketing strategies.