After graduation, Alex Jones became a television researcher, but after being sacked twice, was asked by a producer at Avanti productions to audition in front of the camera. Alex Jones first presenting job was for BBC Choice, and she then joined S4C as a presenter on the singing programme CÃ¢n i Gymru (A Song for Wales). Alex Jones developed a speciality presenting Welsh-language children’s programmes on S4C, including Hip neu Sgip? and Salon, alongside occasional appearances on mainstream British television, including Channel 4’s RI:SE.
Alex Jones presents travel show Tocyn (Ticket) on S4C with Aled Samuel, the extreme sports show Chwa, and was part of the crew on Jonathan Davies’s Welsh-language rugby show Jonathan for the 2010 Six Nations Championship. Jones is a regular co-host on Real Radio GMG in Wales.
On 25 July 2010, Alex Jones was announced as the new female co-host on The One Show, replacing Christine Bleakley. Alex Jones replaced Claudia Winkleman as co-presenter of Let’s Dance for Comic Relief during the programme’s third series in February 2011. She also was part of the BBC team for The Royal Wedding 2011 on 29 April 2011, reporting from Catherine Middleton’s home town. Alex Jones also presented the United Kingdom’s points in the Eurovision Song Contest 2011.
Alex Jones competed in the ninth series of Strictly Come Dancing in 2011. Her professional partner was James Jordan. Alex Jones and Jordan were eliminated a week before the final, and finished 5th overall in the competition.
On 23 March 2014, two days after the main Sport Relief telethon, Alex Jones, along with Matt Baker and John Inverdale co-hosted The Sport Relief Games Show, live coverage of the Sport Relief games that afternoon. On 19 July 2014, Alex Jones hosted the Live at Edinburgh Castle concert event on BBC One.
Starting on 9 August 2014, Alex Jones presented the BBC One gymnastics competition series Tumble which ran through September 2014. In 2015, Alex Jones began presenting the daytime series Close Calls: On Camera for BBC One. She will co-host the upcoming BBC series Shop Well for Less alongside Steph McGovern from early 2016.