The Barnet Group, which manages Barnet's 13,000 council homes, confirmed that Johnson is "no longer employed" by the company. Her appointment in August as director of development and property, on a salary of £157,078, had been described by bereaved families and survivors as "outrageous and disrespectful".
Johnson was director of housing at the Royal Borough of Kensington and Chelsea at the time of the Grenfell fire and was criticised in the subsequent inquiry for her role in budget-cutting decisions. The inquiry found she pushed for a new contractor to carry out the tower's renovation works on a lower budget, which ultimately meant metal cladding was swapped for combustible plastic-filled panels to save money.
In a letter to Joe Powell, the Labour MP for Kensington and Bayswater where Grenfell Tower stood, Eamon McGoldrick, chair of the Barnet Group board, said the company recognised "the depth of feeling surrounding the Grenfell Tower tragedy and its continuing impact on bereaved families, survivors, residents and the wider community". He cited confidentiality obligations in declining to give specific details about Johnson's departure.
Powell said it was "totally inappropriate for any individual criticised by the inquiry to continue to work in housing, particularly while criminal investigations are ongoing". He said it was right that Johnson was no longer in such a position.
Last month, a Barnet Group spokesperson had insisted Johnson was the "strongest candidate" for the role, having considered her professional experience, performance, references, qualifications and suitability. The company said it could not comment further due to confidentiality.
The departure comes as the Metropolitan police have asked prosecutors to consider charges including manslaughter and fraud against 54 individuals and 20 companies and organisations in relation to the Grenfell fire. The Crown Prosecution Service has said charging decisions will be made before the 10th anniversary of the disaster on 14 June.