Marcin Warpechowski is a CEO at Handsontable. He possess expertise in javascript, css, information architecture, html 5, user experience. Colleagues describe him as "Marcin essentially shaped my whole experience working at Starcounter. He cultivates an excellent environment for engineers to excel and do their job well. He is compassionate, professional, and great to work with. On top of his great managerial skills, he is an excellent engineer. He never fails to add serious value to any design discussion or an engineering challenge on the table. His knowledge of JavaScript and CSS are top-notch, thus, as an engineer myself, I find communicating with him a breeze. You just sense that he is a clear thinker right away. I also find it worth mentioning that Marcin has this rare ability to pay undivided attention during a discussion. Having discussions with him is super effective because he sincerely entertains your ideas and responds to them earnestly. Not only this makes you feel good but it also is quite productive. I truly enjoyed working with him." and "Marcin is highly enthusiastic and hardworking and always eager to learn. He is very good at his work and doesn’t require any guidance but is humble enough to take the guidance from the seniors if required. He is very consistent in his work and tries to improve all his skills as and when necessary."