[9] He made his senior Essex debut in September 2014,[10][11] taking the wicket of Darren Stevens with his fifth delivery in first-class cricket.

[12] He also became the first player to represent a county team and Chingford since Robin Hobbs in 1961.

He's lively medium, he does something with the ball and he asks lots of questions of batsmen.

"[12] In a tour match against an Australian team, Porter took 3 wickets in the second innings, dismissing David Warner, Peter Siddle and Nathan Lyon;[15][16] before the match, Porter had stated that he wanted to dismiss Warner.

[17] In April 2018 he was named one of the five Wisden Cricketers of the Year for his contribution to the Essex team that won the 2017 County Championship[18] In July 2018, he was named in England's Test squad for the first Test against India,[19] but he was not selected for the match.