Rio Tinto has a large, globally distributed technical workforce and needs to ensure these employees have the requisite skills to not only manage technical risk and enable safe, efficient production but also ensure they are keeping pace with a fast-changing technological landscape. Traditional approaches to learning struggle with scale and an inability to respond to the extreme diversity of capability development needs. In response, Rio Tinto has successfully introduced innovative approaches to learning and employee engagement by leveraging the power of globally distributed networks for peer-to-peer knowledge transfer and providing mechanisms to recognize, reward and retain individual technical contributors.