[1] On 11 March 2015, Najaryan made his senior team debut in Kazakhstan Premier League against FC Ordabasy at Metallurg Stadium, replacing Vladislav Vasiliev at the 83rd minute by coach Vladimir Cheburin.
[2] On 5 April 2015, Najaryan scored his first senior team goal against FC Tobol at 59th minute.
In January 2016, Najaryan moved to defending Kazakhstan Premier League champions FC Astana.
[4] On 6 July 2017, Najaryan returned to Shakhter Karagandy on loan for the remainder of the 2017 season.
[7] In May 2018, Najaryan was called up to represent Western Armenia[8] and in 2019 played 1 game for Kazakhstan.