Acting and producing

He has worked on many television shows including the BBC's Strictly Come Dancing. Joby was part of the original production team and played a role in the creation of the worldwide hit reality series Pop Idol along with series producer Ken Warwick.

As a television actor, Harte's credits include "the baker" on the ITV children's show SMTV Live. Before being a warm-up artist, he was a radio presenter for local UK radio station 97.6 Chiltern FM.

In 2009, Harte created the company Hot Rock Media, Inc. as an entertainment empire. In 2011, he and then wife Stephanie Wayland became VP, Talent & Literary of the company based in Beverly Hills, California. Hot Rock Media acquired offices at the NBC Burbank Studios and partnered with talent managers Paul Cohen and Sheri Anderson Thomas of Cohen Thomas Management. The company, The Partnership LA, was representing 22 clients including actors and singers in film and television prior to his sexual assault allegations. The Partnership LA dissolved in December 2019.

TV host

Harte was the host^[1] of the Hub Network (now Discovery Family) TV show Majors & Minors, which was produced by Brandy Norwood which premiered on 23 September 2011 and ran for 1 season on Hub. The show was created and cohosted by E.Kidd Bogart.

Talent management

Harte worked with Columbia Records and Fulwell 73 on the NBC primetime One Direction special where he interviewed the band. From there he met Ben Winston who hired him to work on the then new CBS show The Late Late Show with James Corden. Harte was one of the original production team that launched the series and was awarded an Emmy for his contribution to Carpool Karaoke. Harte left the series in 2018.b

Harte signed many young stars including Amir O'Neil (NBC's Marlon), Amari O'Neil (ABC's The Wonder Years), Ricky Garcia (Universals Bigger Fatter Liar) Emery Kelly (Netflix Alexa and Katie) and Disney Channel actor Asher Angel, who was in the WB franchise movie Shazam. Angel played the main role of Billy Batson in the 1st movie. His screentime in the 2023 sequel Shazam! Fury of the Gods was reduced to 6 minutes with a bulk of Angels screentime deleted from the final cut. The decision was made by director David F Sanberg. Angel also won an iHeartRadio Award for social media music star in 2020. Angel was last on tour during the COVID-19 pandemic in the United States. Since the pandemic he's only performed publicly once, singing the National Anthem for the Phoenix Suns 2022–2023 season opener.

In 2018 Harte teamed up with Veteran manager Johnny Wright to manage the winning act of the ABC primetime series Boyband. The band was named In Real Life and were signed to Hollywood Records where they went on to have short success from 2017 to 2019 and had 9 top 40 hits. The highest they peaked was The Night Belongs to You. They disbanded in 2020.

Harte continued his relationship with Wright and they share Asher Angel in the music space. They him with record label Hitco under the eye of musical LA Reid. Angel was dropped after 1 year. Angels first release with the label was One Thought Away feat Wiz Kalifa which became the number 1 video on YouTube for 3 days. The video was released in April 2019 shortly after the release of the 1st Shazam movie. He would make a few more songs and music videos, several of whom debuted on Entertainment Tonight. Asher Angel's most recent music video was released in 2020.