Pixel Alliance is Solvay's strategic partner in its new campaign "Solvay New Way of Working" set up by the Digital Hub team. We launched the pilot of a professional social network with the Happeo tool for the HR, IS and Communication departments (2000 users), to make internal communication smoother and friendly. We animate workshops to structure the launch of co-workers communities, and we identify and define communities' goals, key performance indicators and contributors to track the user engagement (posts, response quality...). Our community management helps Solvay to foster exchange dynamism and best practices sharing. We work closely with Solvay's IT teams to improve the platform and correct technical bugs in record time, and with the platform's users to improve and develop new functionalities.