When responding to this question, try to have an achievement in mind that will demonstrate how you can help the interviewer's organization achieve one of its business objectives or goals. Employers hire individuals to help them make money, save money, or save time. Demonstrating how you can do this with all your answers during an interview will help convince the interviewer that you are the right person for this job.

"One of my professional achievements that I am most proud of is helping my current employer reduce the time required to debug the first iteration of a new program by 50%. I did this by implementing Agile development practices in our software development process to identify and correct errors at each stage of the process rather than at the end. Since the programmers had just created the code with the errors, they were better able to identify and correct them. This also eliminated cascading errors due to earlier bugs that multiplied when subsequent mistakes were made."