Explore the complexities of developing mobile applications for a massive user base in this 33-minute conference talk from WeAreDevelopers Conference 2017. Delve into the cultural and social challenges faced by software development teams, with a focus on their exponential impact on team performance. Learn from Runtastic's experiences in team building, culture cultivation, and product delivery for over 200 million users. Discover vital skills for software engineers and their connection to Agile principles. Gain insights on living your products, fast iterations, the KISS principle, effective execution, communication strategies, flexibility, and embracing change. Understand the importance of company values and how they align with human-level principles in software development.