He played for the Edmonton Oilers and New Jersey Devils during his National Hockey League (NHL) career.

[1] On July 5, 2016, having left the Oilers as a free agent, Gazdic agreed to a one-year, two-way deal with the New Jersey Devils.

On July 2, 2017, Gazdic returned to Canada as a free agent in signing a one-year, two-way deal with the Calgary Flames.

As a free agent from the Flames, and with no NHL contract over the summer, Gazdic joined the San Diego Gulls training camp on a try-out and later made the AHL opening night roster for the 2018–19 season.

In the following off-season, Gazdic opted to continue his tenure with the Gulls agreeing to a one-year contract on August 14, 2019.