The overall overview is not good. The architects have an very old mindset. It's difficult to propose new technologies. For example, the company insists on deploying an old monolith in Google cloud running in Jboss 6.
The company tries to brainwash at all cost. For instance, it says the "We set the path", ¨We fly high". Sincerely, it doesn't know what these phrases mean and repeat every day to make you believe Edreams is the best company in the world.
Don't expect to receive any promotion or benefit for doing great job here. Depending on the lead, he may say good job and that's all. You won't be promoted for these actions. Promotions are really rare and it's not clear what the criteria are.