Eileen Haughey will be stepping down as chief executive officer (CEO) of the BT Pension Scheme (BTPS) once its 2017 actuarial valuation has been finalized.
Haughey told the BTPS trustee board that the "conclusion of the valuation is the optimum point to step down," and she will be taking some time off work once it is completed.
Its trustee board will take on her responsibilities while it seeks to replace her.
Haughey said: "It has been a privilege to have worked with the trustee over the last five years. I am immensely proud what my team and I have achieved in the interests of members, and I wish the trustees, scheme members, BT and my colleagues all the best for the future".
The scheme's chairman of the trustee Paul Spencer CBE said: "The trustee board and I are very sorry that Eileen has decided to leave. We wish to thank her for her immense contribution to the scheme over the last five years and wish her well for the next stage of her career.
"We are pleased that we will benefit from her leadership until the conclusion of this valuation, which will enable us to ensure a smooth transition, following her departure."
Haughey has overseen a period of changes in the management and operations of BTPS. This has included the implementation of a £16bn longevity hedge and, most recently, the in-sourcing of the scheme's administration.
Last December PP reported that the £49bn, 300,000-member scheme would bring its administration back in-house after agreeing to end its third-party contract with Accenture, three years into an eight-year contract.
Managers and professional staff voted in favour of the deal, which would see the BTPS close to around 11,000 managers employed before 2001.
The vote came ahead of the 17 January deadline to respond to BT's statutory consultation on its plans to close the BTPS. This was an attempt to stem the growth of the BTPS' deficit, which has been estimated as £14bn on an actuarial basis.
The government has confirmed the current interim chairwoman of The Pensions Ombudsman (TPO), Caroline Rookes, will continue the role in a permanent capacity.
The Pensions Management Institute (PMI) has appointed three non-executive directors and an executive director to its board.
Former Financial Regulators Complaints Commissioner Antony Townsend is to become chair of an expanded Determinations Panel at The Pensions Regulator (TPR).
Six members of Ross Trustees’ pension trustee and support teams have been promoted into new roles.