My name is Ahmed Shehata. My job is to build models to estimate the response of a system to any change in the variables that define the system numerically. This system can be anything. throughout my career and my education, I have learned how to define the system variables and use them to build a mathematical model and validate it. how to use this mathematical model to getting a response and estimating the error in that response. How to validate the response against real-time data or experimental data. For instance, I did a project to estimate the response of the customers to using the new website page using A/B testing techniques. I did a project to investigate the factors that affect the Loan status outcome (to be paid back or not ) from some variables such as having a home, the interest rate, and the original amount of loan. Furthermore, I have an MSc In mechanical engineering so I did projects to estimate the response of mechanical systems such as dynamic analysis for mast carrying HAWT in MATLAB using FEM. You can see a detailed list of my projects on my GitHub page and in my resume.