His progress was rewarded with a nomination as the LV= Breakthrough Player for 2015, when he took 50 First Class wickets. He also made his List A debut in 2015, taking 3/39 in his first game away at Hampshire. He signed a three year contract at the end of the summer in 2015, after receiving his County Cap during the final match of the season. He was part of the Potential England Performance Squad over the 2015/2016 winter, and has a bright future.
Since then, Porter scooped 50 wickets again in the 2016 season to help Essex to the Division Two title, and in 2017 took an extraordinary 75 Division One scalps to help the Club to a County Championship title. England Lions recognition followed, and if the Chingford-man continues in this vein, full honours will not be far away.