Markey will leave on 1 January 2020.
Simon Markey will be stepping down from his role as chief executive of OneFamily.
After seven years in the role, Markey (pictured) will leave the position on 1 January 2020.
Teddy Nyahasha, who has been chief finance officer at the lifetime mortgage lender since 2016, will take over as chief executive.
Markey said: “It’s been my pleasure to lead this business over the past seven years.
“With Teddy as chief executive, supported by the board and our strong executive team, I am confident I am leaving the business in the best possible hands.”
OneFamily has hired Jim Islam as its chief finance officer.
Islam joins on 1October from Lloyd’s of London where he was head of group finance.
The lender has appointed both Islam and chief commercial officer, Nici Audhlam-Gardiner to its board of directors.
Nyahasha added: “I am honoured to have been appointed as the new chief executive of OneFamily and am looking forward to working with the board and other colleagues to continue delivering our ambitious strategy.
“This is a good time to be part of OneFamily and we face the future with confidence. I am also delighted that Jim Islam and Nici Audhlam-Gardiner are joining the board.”
Christina McComb OBE, chair of the board at OneFamily, said:“The board’s priority has been to select the best leader for the next phase of OneFamily’s future; we believe we have found that in Teddy as our new chief executive.
“Teddy’s experience and understanding of our business, coupled with his belief in our strategy and commitment to our core values, meant he was a unanimous choice for the board.
“The board thanks Simon for his vision and leadership over the past seven years, which has provided a strong platform for OneFamily’s future success.
“We also welcome new chief finance officer, Jim Islam; and the appointment of Nici Audhlam-Gardinerour chief commercial officer to the board.
“We are delighted to have attracted such a strong successor to Teddy as our new chief commercial officer. With his vast experience, Jim brings the right combination of financial, sector and business expertise to help us deliver our new strategy.
“Nici has worked closely with the board since joining OneFamily as a member of the executive team.
“Her impressive strategic, commercial and marketing capabilities will serve us well as we lead the next phase of OneFamily’s future.”
