Witold is an expert in complex analysis, algebraic geometry, computer algebra and algorithmic complexity. Recently, as a Software Engineer at Corvil, he worked on low-level performance of the core system, contribution towards user-customizable big-data analysis framework based on open-source components and the solution allowing monitoring network traffic in cloud deployments. Between 2007-2014 he worked at the same position at Google R&D Kraków within the Infrastructure area, responsible for analysis and optimization of cluster resource utilization, Omega cluster OS, ML-based ads optimization. Prior to Google he was assistant professor at the Jagiellonian University.