Jay Clayton, the former chair of the Securities and Exchange Commission, has joined the crypto firm Fireblocks

Former US Securities and Exchange Commission (SEC) Chair Jay Clayton has joined the board of advisors of crypto custody service Fireblocks.

Clayton will collaborate with Fireblocks on market structure and customer needs, as well as support and deployment of the firm's security technologies, according to the company. Clayton, who left the SEC in December, is also a board member of Apollo Global Management and a consultant for One River Digital Asset Management.

Fireblocks offers multi-party computation (MPC) services as well as software security solutions for digital asset custody. The company also offers tools for accelerating or otherwise streamlining the settlement of digital asset transactions.

Fireblocks raised more than $300 million in a Series D fundraising round a month ago, valuing the company at $2 billion. The fundraising round included DRW, Sequoia Capital, Spark Capital, Stripes, and Coatue.

Some of Fireblocks' high-profile clients include the digital bank Revolut, BNY Mellon, and the yet-to-be-launched diem stablecoin.

Since returning to private life, a number of former top government officials have taken up responsibilities in the digital asset sector. Chris Giancarlo, the former Chair of the Commodity Futures Trading Commission (CFTC), is now an adviser to the Chamber of Digital Commerce and BlockFi, as well as one of the founders of the Digital Dollar Foundation.

Some of those post-government service jobs turned out to be temporary. Former Acting Comptroller of the Currency Brian Brooks served as Binance.CEO US's for a few months, while former SEC Director of Trading and Markets Brett Redfearn worked at Coinbase for a few months.