The FSCS said that recruitment of a permanent CEO would start in line with the next FSCS chair’s first term, which is expected to begin in April next year.
Caroline Rainbird, who was chief executive for around four years, left the firm earlier this year.
Beauchamp will join the FSCS board as an executive director.
He is currently on the board of advisors at CandidateX, a diversity, equity and inclusion technology start-up, and is an independent non-executive director for Charities Aid Foundation.
Before that Beauchamp worked at Apax for around five years in various senior roles and prior to that was chief customer officer and group board director at Slater and Gordon Lawyers for around two years.
He was chief executive of Sainsburys Argos Financial Services for around two years and before that was international director at Tesco Bank for around four years.
Marshall Bailey, FSCS chair, said: “The board and I recommended Martyn for the role of interim CEO as he brings both extensive financial services experience and a real passion for good outcomes, with an eye on the impact on trust in financial services, which is at the core of what FSCS does.
“Martyn’s appointment comes at a pivotal time for FSCS and financial services as we find ourselves engaged in many important discussions about the future of regulation, looking at how we can best meet the needs of consumers, and all our stakeholders, in an ever-changing and complex industry.”
He continued: “I look forward to spending the last part of my tenure as Chair working with Martyn alongside the rest of the FSCS Board.
“I would also like to thank Fiona Kidy, FSCS’s chief financial officer, who stepped up to lead the organisation whilst we appointed an interim CEO, ensuring the vital work that FSCS does continued uninterrupted over the summer.”
Nikhil Rathi, FCA CEO, and Sam Woods, deputy governor for Prudential Regulation and PRA CEO, commented: “FSCS plays an important role in the regulatory landscape. We look forward to working closely with Martyn during his time at the organisation.”
