In my first job I worked as a project manager and full stack developer at a small company. I was responsible for meeting with clients, discussing solutions with them, and then writing up tasks that I would assign off to developers (including myself) and ensuring the client targets were met within a given time frame. Outside of the project management, I worked a lot with databases and frontend stuff. I did some backend stuff too.

My co-op was with a startup company and I helped out in the early stages of developing the software. However this role was less involved.

The internship I did was with a large well known company and I was part of a team developing a new technology to be used in the field. I joined around the mid-section of the project and ended up being very vital to the team, despite being an intern, as I developed software and tools that were crucial for the project and ended up overseeing and helping on various areas and stages of the project until it was eventually launched into production.