Mattis is active as a software engineer and consultant for datalevel since 2021 and became partner in 2022. In 2015 he began a dual studies program at Deutsche Bank and completed the “Fachinformatiker” (Computer science expert) apprenticeship. Parallel to his work at Deutsche Bank he finished his Bachelor of Science in Information Systems and Master of Science in Applied Data Science at Frankfurt School of Finance & Management. He combines financial industries know-how with experience in DevOps engineering, machine learning, crypto assets, business analysis and full stack development.