René Schwietzke is the Managing Director of Xceptance, based in Germany and the United States. He is a seasoned IT professional with over two decades of experience in performance tuning and measurement, starting his journey with Java version 1.0. During his tenure at various e-commerce and quality assurance companies, he honed his expertise in optimizing and fine-tuning large-scale applications. His academic background includes a Master's degree in Computer Science, and he actively shares his knowledge by lecturing at universities and presenting at international software development conferences. He is also a frequent speaker for training sessions on Java, garbage collection, memory management, quality assurance, and testing.