Jacek is an experienced Agile Coach and a practitioner of agile development. During his carrier he gained hands-on experience in many roles (developer, project manager, scrum master, agile coach, C-level executive), in various companies (start-ups, middle size companies, big corporations), in diverse business models (product and service oriented, internal and external clients), with customers from different countries (Poland, UK and USA). He was supporting two big Scrum transitions (Allegro and PayU) and led an agile transition in a software house (STX Next). He shares his knowledge on conferences, community meetings and on the web. Co-founder of agile247.pl and author on agilecoaching.pl.