Jean-Claude Siebenaler of ALPHA-Insurance SA wrote a recommendation letter for Alexandre Brihaye. Siebenaler was Brihaye's supervisor from 2000 to 2016, during which time Brihaye held positions as an IT Support Specialist and Network and Infrastructure Engineer, succeeding in both roles. Siebenaler described Brihaye as pleasant, creative, flexible, a quick learner, hardworking, honest, and able to easily integrate into a team, all of which would serve any company well.