How to answer
What complex projects have you worked on? What large problems have you solved? These things make great examples for this question!
Complex Projects: Provide the interviewer with a high-level overview of the project you were working on, and dive into all of the components of the project you were juggling. Next, share how you thought through all of the project components, organizing them to ensure the project was completed on time and successfully. Finally, be sure to share how successful your project truly was.
Problem Solving: Provide the interviewer with an overview of the problem you needed to solve. Share that you thought about all of the possible solutions elaborating on the pros and cons of each. Finally, share which solution you ultimately selected as well as why it was the best solution in the long run.