Marc Steffen is a Data Applications and Visualizations Manager at Apple. He possess expertise in mobile devices, user experience, mobile applications, mobile marketing, product management and 38 more skills. He is proficient in Latin, French and English. Colleagues describe him as "I worked with Marc for just one year and I wished it was longer. He is a great team player, his fascination for innovation and trends, positive attitude and reliability made him such a valuable colleague" and "It's very hard for me to speak about Marc without being biased as I find him responsible for a big leap in my career that happened a few years ago. At the time he was Product Design Lead in the Artificial Intelligence & Machine Learning team at Swisscom. He hired me and then helped me to integrate in the team, enabling me to display my full potential and to contribute to the team in a ways I was not aware I was capable for. Soon I understood that his biggest virtue is an open mindset combined with a realistic yet out-of-the-box vision. He did an amazing job in recognising hidden qualities in each team member, encouraging people to fight for their ideas in collaborative way. I never felt like I was dealing with my boss but with a partner in crime instead. Sharing ideas with him felt so comfortable and natural. Swift and efficient answers to day-to-day challenges come as a natural result of our collaboration. With his guidance our UX team established strong authority, not only within the team but all across Swisscom. All based on our results and not on some inflated self promotion, which is so common in the industry these days. I certainly hope to work with him again in the future."