Since joining Boston Consulting Group in 1994, Rainer Strack has led projects on strategy, process optimization, culture, organization, transformation, change, talent, and human resources management in many industries. From 1996 to 1998, he was based in BCG's office in Boston as a BCG Ambassador. 

Rainer has led BCG’s work in HR globally for ten years. He was the head of the People & Organization practice area in Europe, the Middle East, and Africa for more than ten years, and currently leads the Social Impact practice in Germany. In 2001, he received the Erich Gutenberg Award for the development and implementation of new HR and customer-controlling concepts. 

In 2007, 2009, 2011, 2013, 2015, 2017, and 2019 the journal Personalmagazin named Rainer one of the 40 leading minds in human resources in Germany—the only member of a top consulting firm to receive this distinction. He has written numerous articles, including on HR-controlling and demographic risk management and strategic workforce planning, both published in the Harvard Business Review. He was a member of the Global Agenda Council for talent mobility of the World Economic Forum and presented twice on this topic in Davos. 

In 2014 Rainer gave a widely viewed TED.com talk (more than 1.7 million views) on "The Workforce Crisis of 2030 - and how to start solving it now."