A past CEO, CIO and CTO, Roelf's graduate education is in the psychology of the workplace. He has managed, directly and indirectly, thousands of professionals over the course of his career. A soft skill expert, he now creates training courses for next level soft skills. He and his staff have recruited and hired countless professionals, at all levels from individual contributor to C-Level Executive. He has written extensively on hiring, organizational change, information technology, and interpersonal interaction at work. Many of his writings are available on the Internet. He also leads an active workplace investigations organization.