I have extensive experience with Power BI, having used it to create interactive dashboards and reports that provide actionable insights. I am proficient in data modeling, creating calculated fields, and using DAX for advanced calculations. Additionally, I have worked with Tableau to design visualizations that effectively communicate complex data, ensuring stakeholders can easily understand key metrics and trends.

I prioritize data cleaning and preprocessing to ensure the accuracy and reliability of insights. I start by identifying and handling missing or duplicate data, normalizing formats, and validating data integrity. I also use tools like Python or SQL to automate repetitive tasks and ensure consistency. By thoroughly cleaning the data, I can build robust models and visualizations that drive informed decision-making.

In a previous role, I analyzed sales data and identified a significant drop in revenue for a specific product category. Through further investigation, I discovered a seasonal trend and recommended targeted marketing strategies to mitigate the impact. This insight led to a 15% increase in sales during the off-peak season, demonstrating the value of data-driven decision-making.

I prioritize data security by following best practices such as encrypting sensitive data, restricting access based on user roles, and regularly auditing data usage. I also ensure compliance with regulations like GDPR or HIPAA by implementing data anonymization techniques and maintaining detailed documentation of data handling processes. These measures protect both the organization and its stakeholders.

I focus on simplifying complex data by using clear, visually appealing dashboards and reports. I tailor my communication to the audience, avoiding technical jargon and emphasizing actionable insights. For example, I use storytelling techniques to highlight key trends and their business impact, ensuring stakeholders understand the value of the data without getting overwhelmed by details.