Vinicius Petrucci joined our department in August 2019 as a Lecturer. His research interests concentrate on computer systems with an emphasis on improving resource efficiency while delivering real-time performance guarantees. Energy consumption, for instance, is a big and growing problem for large-scale server systems, smartphones, and wearable devices. In particular, he has focused on understanding the tradeoffs of energy (e.g. save energy by running a bit slower) and performance (e.g. need to meet user expectations, always!) and exploring this knowledge to design better dynamic resource management approaches.