Hydrogen is set to play a key role in the energy transition, and its compression is critical for storage and processing. Compressors are essential for more easily transporting hydrogen, making hydrogen compression technology a pivotal focus in the gas production industry. In this case study, we will introduce state-of-the-art hydrogen compression technology and share a real-world example from a green hydrogen production plant. Our machinery engineers will first introduce various types of hydrogen compressors, explaining their fundamental principles and mechanics, followed by their application in a real plant setting. We will then showcase a field example that highlights the technical challenges our engineers regularly address. Specifically, we will demonstrate how we improved the reliability of one of our green hydrogen compressors through an innovative solution that contributed to its life-time extension. However, this enhancement also introduced new mechanical challenges, which students will be tasked with solving in an interactive session.