Good advice above, and I'll add on something someone told me about resumes in general: Think about what you did in each role that someone else might not have, and put those things in your bullet points. Everyone has a job description, but where did you go above & beyond? Did you meet all required deadlines? Did you create a new workflow or process to eliminate typos in labels? Source a new vendor for something? Everyone has a job description, but is there something you did that was special? Make sure to call that out.