We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
Marcin Olszynski
@marcin_ols
Freelance Web Deweloper
United Kingdom
Badges
Certifications
marcin_ols has not earned any certificates yet.
Work Experience
marcin_ols has not updated employment details yet.
Education
marcin_ols has not updated education details yet.
Cookie support is required to access HackerRank
Seems like cookies are disabled on this browser, please enable them to open this website