Former shadow pensions minister Gregg McClymont is joining The People's Pension as director of policy and external affairs.
Mr McClymont has been hired by B&CE – the not-for-profit company behind The People's Pension - from Aberdeen Standard Investments, where he has been head of retirement for three years.
He is replacing Darren Philp, who is joining Smart Pension as head of policy in September.
While he was an MP, Mr McClymont was an opposition whip and then shadow minister of state for pensions from 2011 to 2015.
He was also an adviser to the secretary of state for health, between 2003 and 2005.
At The People's Pension, which he will join at the end of July, Mr McClymont will be responsible for relationships with external stakeholders including policymakers, media and trade associations on money and health matters.
He plays an active role on several industry boards and committees including the Financial Conduct Authority's institutional disclosure working group and the board of directors of the Tax Incentivised Savings Association (Tisa).
According to Patrick Heath-Lay, chief executive of B&CE, Mr McClymont's commitment to delivering better retirement savings outcomes for working people was "well-recognised" throughout the industry and in Parliament.
He said: "He has been a tireless supporter of automatic enrolment and a vocal campaigner for improved pensions options for UK workers.
"As a not-for-profit organisation, this aligns with B&CE's aims and values and we are thrilled to be able to benefit from his extensive policy experience and industry expertise."
Mr McClymont said this was an exciting time to be joining the pension provider.
He said: "With nearly four million members, The People's Pension is growing rapidly and helping to shape how the retirement savings industry can better address the needs of workers up and down the country.
"Large not-for-profit pension funds are the most efficient way to deliver occupational pensions at scale.
"I am also looking forward to supporting the organisation as it develops an occupational health solution that will improve the lives of workers by treating health equally to safety, catching symptoms of ill health in the workplace early and helping them to stay in work longer."