Aerospace engineering positions at major companies like Boeing and Lockheed Martin can be obtained with just a Bachelor of Science in Engineering (B.S.E.) in Aerospace Engineering, although having a Master's degree may provide advantages such as higher starting salaries and access to more complex projects. Many graduates with only a bachelor's degree have successfully secured jobs in the aerospace industry. However, pursuing a Master's degree could be beneficial for career advancement in the long run. Some universities, like Cornell, offer accelerated Master's programs that allow students to earn both degrees in a shorter timeframe. It is advisable for prospective students to directly contact university departments and companies to understand specific hiring preferences and opportunities for advancement. Ultimately, while a Master's degree can enhance prospects, it is not strictly necessary to begin a career in aerospace engineering.