Hashi is a barrister at No5 Chambers and a Broadcaster and published author. In 2010, he joined The Honourable Society of Lincoln’s Inn and completed his barrister training in London in 2012. Now at No5 Chambers, Hashi practices in public law; his main area of focus is Planning & Environmental law. Hashi has been consistently listed as one of the highest rated junior planning barristers in England and Wales.

Hashi presents documentaries on BBC Radio 4, most recently on planning, politics and housing; 20 years since the inquiry into the murder of Stephen Lawrence, and on access to the top professions – with particular focus on the law. Hashi writes regularly in various newspaper publications, including The Times, The Sunday Times, The Guardian, Tortoise Magazine and Prospect Magazine.

Hashi's book on social mobility in Britain, People Like Us, What it Takes to Make it in Modern Britain was released in January 2020, and was BBC Radio 4 Book of the Week. Hashi's second book, A Home of One's Own, focusing on the housing crisis and what we need to do about it, was released in September 2022.