A software engineer intern works under the guidance of an experienced software engineer who is usually mid or senior level. As a software engineer intern, your responsibilities are to learn as much as you can about software engineering as well as learn how to navigate the politics and dynamics of a corporate or startup setting. Your job duties as a software engineer intern include tasks like coding and debugging software applications and experimenting with design elements. You also review other engineers’ code, test software applications and patches, and implement changes and updates when necessary.