Ari-Heikki Sarjanoja is a highly skilled service and interaction designer with over 12 years of experience in the field. His educational background includes a master's degree in electrical engineering from the University of Oulu. Throughout his career, he has held numerous senior positions in major companies such as Valve, Polar Electro Oy, and Nokia. During his time at Polar Electro Oy, he designed wireless heart rate monitors, mobile applications, desktops, and web applications. As the head of a design team, he currently leads a team of seven designers consisting of service and interaction designers art directors. His specialties include interaction design, Flash prototyping, web development, and project management.