[8] She began presenting at 19, and she was still working part-time as a shop assistant for New Look when a starring role in an advert for New!

[7] She has described how she would work as a retail assistant by day, and record online videos in the fitting room after the shop had closed.

[10] Welby hosted the Revolution cycling show series for Channel 4, alongside co-worker from 5 News, newscaster Matt Barbet.

Previously she has presented cycling shows for BT Sport, Eurosport and ITV4 and is the female face of Electronic Arts.

[13] Welby became a presenter for the online quiz game, HQ Trivia in the UK, making her first appearance on Monday 9 July 2018.

[14] In February 2019, Welby became the presenter for another online quiz game called Heart's Triple Play, broadcast exclusively on Facebook Watch.

Having received a record 79% of the viewer vote, Welby took part in Slime and Punishment, and was covered in 20 buckets of multi-coloured gunge [citation needed].

[19] On 20 March 2020, it was announced that Welby would join Capital Breakfast with Roman Kemp and co-hosted by Sonny Jay as a replacement for Vick Hope who left on 21 February 2020.

Welby will remain with the Capital Breakfast Show following Kemp & Jay's departure and replaced by Jordan North and Chris Stark in April 2024.

Welby is an active supporter of several charities including the Sick Children's Trust[31] and Leonard Cheshire Disability Centre.