In my opinion:
1. Structure: Startups are usually flat and flexible, while large corporations have a hierarchical, formal structure.
2. Resources: Startups often have limited resources but offer creative freedom, whereas corporations have abundant resources but are more rigid.
3. Risk and Stability: Startups carry higher risk and less job stability, while corporations offer more job security and established paths.
4. Impact and Growth: Individual impact is more noticeable in startups, with rapid growth opportunities, while corporations offer slower, more structured career progression.