Working for EDF. Working for EDF. Why choose EDF. Why choose EDF... Working for EDF... To bridge the gap between education and the world of work, EDF welcomes more than 1 500 interns every year studying for qualifications that range from a post high school certificates to master's degrees. To do an internship at EDF means being able to work in our strategic areas of activity: production, engineering, IT, trade, renewable energy.