Ironshore Inc. announced the appointment of Joe Roberts as chief financial officer on Thursday.

Roberts, who most recently was executive vice president and CFO of Alterra Capital Holdings Limited, will be responsible for the management and oversight of all financial aspects of Ironshore’s worldwide activities, reporting directly to Chief Executive Officer Kevin H. Kelley.

Roberts succeeds Mitch Blaser, who was the original CFO at Ironshore’s inception, a company representative said. She said Blaser is now chief operating officer of Ironshore Inc. and CEO of Ironshore Bermuda, while Roberts will have global responsibility for all financial aspects of Ironshore.

Roberts will be based in Ironshore’s Bermuda head office.

In a statement about the appointment, Kelley said, “Ironshore is pleased to have Joe join our leadership team, as he is a highly regarded industry executive who is well-respected by colleagues within the financial services sector.”

“We look forward to working with him as we continue to build and expand upon Ironshore growth strategies in global markets.”

During his 11-year tenure with Alterra, Roberts was integral to the company’s expansion from a small Bermuda-based reinsurance company to a global specialty insurer and reinsurer with operations in major markets worldwide, including Bermuda, Europe, the United States, Lloyd’s, and Latin America. Alterra’s growth was achieved both organically and via several major acquisitions, until its successful sale to Markel Corporation in May 2013.

Source: Ironshore Inc.