They will go through your entire resume and ask questions. Be prepared to explain atleast one of the projects/ researches you've done in detail. A few situational questions like why did you choose AECOM, what do you want from the job, where do you see yourself in the future, areas of interest in electrical engineering and why, when can you start. A few technical questions as well. My field was energy within electrical engineering. So some of the questions were based on that - what voltage is used in Australia, transmission voltages, questions related to solar energy as my research was based on that, what will be some challenges faced as we transition into renewable energy.