George Wangensteen is a rising senior at Brown University studying Computer Science who spent his summer as a Software Engineering Intern on MongoDB's Query team. He worked on the core database product, optimizing query execution and plan generation for user queries. Wangensteen enjoyed working on aggregation pipelines running against sharded collections and appreciated the culture at MongoDB, which encouraged asking questions and learning from experts. The internship provided him with hands-on experience in a new programming language, C++, and helped him improve his skills as an engineer through mentorship and challenging projects.