Telegraph Media Group (TMG) is to employ forty additional editorial staff.

A press release issued this morning stated that upcoming appointments "centre on strengthening the Telegraph's original reporting, with significant new investments in investigative reporting, data journalism, interactive tools, and video production."

The changes also include the creation of a cross-functional team of journalists, engineers, and designers focused on innovation in digital journalism and creation of new tools for reporting and data presentation; and the formation of a breaking news team to speed the delivery of stories to mobile and web.

A limited number of positions will be lost at the paper.

TMG's chief content officer and editor-in-chief Jason Seiken said: “I strongly believe that, in the long run, quality journalism wins. That is why we are focused relentlessly on two things: producing truly distinctive quality journalism; and ensuring this journalism is seen by the largest possible audience. Our investment in areas such as investigative reporting and data journalism will enhance the former, while our new positions focused on SEO and social media will power the latter.”

A list of hires so far not previously reported on the Media Bulletin can be found below:

Allister Heath, the editor of City AM, joins as deputy editor in charge of business next month.

Dan Adcock, head of SEO at ITV, will join as head of technical SEO.

Mark Molloy will join the expanding social media team.

Kerry McQueeney, formerly of Metro, MSN and Mail Online, is joining the homepage team along with Michael Wilkinson who is public affairs correspondent for the Gloucester Citizen.

In lifestyle, Jon Stock, currently managing the online books channel, will become executive head of life and weekend, leading three new content hubs: gardening (led by Joanna Fortnam), property/Interiors (led by Stuart Penney) and food (joint-led by Elfreda Pownall and Amy Bryant from Stella magazine).

Three appointments in the business team have been made by Allister Heath: Ben Wright, the former editor of Financial News and currently City correspondent for the Wall Street Journal in London, joins as senior city editor; Lauren Davidson, who works for Quartz in New York, joins as a business reporter; and James Quinn, who has been acting executive business editor, is confirmed in the role permanently.