 On 15 July 2014, he was signed to a three-year entry-level contract with the Capitals.In the 2014–15 season, he played two games with the HC Bílí Tygři Liberec of the Czech Extraliga and spent much of the rest of the season with HC Benátky nad Jizerou of the 1st Czech Republic Hockey League.Vaněček continued his career the following season in North America, splitting time between playing for the South Carolina Stingrays and the Hershey Bears, affiliates to the Capitals.