I applied online. The process took 4 months. I interviewed at BAE Systems (Lancaster, England) in Apr 2016
Interview
Assessment Centre day comprised a written exercise on a current BAE product, a team exercise in which a discussion was made to identify and prioritize specific business areas, a strengths-based interview with some trivial technical questions, and a presentation exercise about your plans for self-development at BAE Systems.
Interview questions [1]
Question 1
Explain the Systems Engineering Lifecycle of a product.