I am Wojtek Hellwing, an experienced researcher with a huge fascination for exploring and solving scientific problems. My expertise covers computational cosmology,galaxy formation, and the large-scale structure of the Universe. I am also a dedicated teacher and science communicator. I particularly enjoy engaging with young researchers and inspiring them to pursue the scientific career. My current research activities focus on using cosmic velocity and density fields for testing General Relativity and alternative theories, and on structure formation on galaxy and sub-galaxy scales for studying the physical nature of dark matter. Finally, I really enjoy public outreach activities, where I can tell other people about my passion.