Aegon UK, which shed 600 jobs in Edinburgh three years ago, has announced plans to create more than 100 new roles at its headquarters over the next few months.

The Dutch-owned insurer has also appointed a new chief executive at Kames Capital, the UK investment arm also based in the capital.

The core expansion is driven by the strong growth of Aegon Retirement Choices, the insurer's digital platform launched last year which allows financial advisers and clients to view their investments and savings products on one online system.

ARC was a double winner at the industry's last Platform Awards, as Aegon, under new chief executive Adrian Grace, made amends for its late arrival in the platform market.

Mr Grace claimed earlier this year that Aegon had "started 100 metres behind in a 400-metre race" to be ready for auto-enrolment into pensions, and the ending of commissions for advisers, but that the company was now a "leader in our chosen markets".

Two years ago Aegon UK was fined £2.8m by the regulator for failings in its systems, which led to a £171m bill to compensate customers and pushed its pensions business to a £75m loss in 2011.

The business shed 25% of its workforce in 2010-11 following an earlier plunge into losses, and its Dutch parent had considered trying to sell it.

A further restructuring announced three months ago saw the closure of six regional offices supporting 160 jobs, including 22 in Glasgow.

Aegon UK created 43 new roles in areas such as platform and protection sales, but fewer than 10 were in Edinburgh.

The new jobs include roles in management, administration, specialist investment support, trainers and business analysts, all within the new Aegon Platform Centre based at Edinburgh Park.

Tommy Young, chief operating officer at Aegon UK, said: "Our platform business has helped drive impressive new business sales and continues to go from strength to strength.

"With huge changes in the pensions industry, such as auto-enrolment, we're looking forward to this growth continuing."

Aegon UK, which is a major backer of UK tennis, employes around 1900 people at its headquarters in the Scottish capital plus a further 200 around the UK.

Mr Young continued: "We're committed to providing opportunities for current staff to learn new skills and develop their careers, but we also recognise the need to gain specific experience and skills from outside Aegon to help shape our future."

Meanwhile Kames Capital announced the appointment of Martin Davis, former chief executive of the Cofunds platform, as chief executive to succeed Andrew Fleming at the helm of the £52 billion business.

Mr Fleming, who had also been chief investment officer and led the business for eight years, departed abruptly in March, despite Kames finishing a successful 2012 as the UK's sixth biggest net seller of retail funds.

But the key contribution of fixed income prompted Aegon to promote Stephen Jones as chief investment officer, with interim chief executive responsibilities passing to Aegon's group asset management supremo Sarah Russell, appointed in 2010.

Ms Russell commented: "I am pleased that Martin is joining Kames Capital.

"His experience of leading and building financial services companies make him the ideal choice to take the business forward in the next stage of its evolution."

Mr Davis, formerly with Zurich, left Cofunds in March when Legal & General moved to take full ownership of the business.

Aegon said he "oversaw the platform's transition through the UK Retail Distribution Review and a growth in assets under management".

The Aegon parent business, based in The Hague, has a presence in more than 20 markets covering the Americas, Europe and Asia.

Companies under its control employ about 24,000 people.