The last years, we all have felt the impact of applying technologies like machine learning, social networks and data-driven decision making on a massive scale to our societies. Yet all that technology has been developed by engineers like us. It's become clear that we have to do more than chase the ever evolving technological challenges and start to assume responsibility for our creations - or we too will wake up one day to the realization that technology we helped develop has done more harm than good. We want to present practical, every day guidelines and principles that can help engineers and organizations to build technology that not only serves the application and business purpose, but also minimizes negative long-term effects on society and the people that use it.