Bitcoin wallet startup Blockchain has announced the opening of its new office in San Francisco, marking its second office in the U.S. and the fourth globally.

The company said that this follows its recent acquisition of Tsukemen, Inc. The new office will be headed by Thianh Lu, formerly the CEO and co-founder of Tsukemen, and Blockchain’s new Head of Design.

In addition, Blockchain announced a number of new appointments resulting from Tsukemen acquisition.

Fred Cheng, the founder of Simperium and creator of Simplenote, is Blockchain’s new West Coast engineering lead and will help the company build the software necessary to create a more open, accessible, and fair financial future.

Cheng will be assisted by Android and iOS expert Chris Arriola in the efforts to advance Blockchain’s mobile applications.

Min Wei is also joining Blockchain from Tsukemen team and will serve as part of the Strategy & Partnerships team. Wei will help in identifying new opportunities for the company to explore.

“It is rare to find such diverse and remarkable talent within a single team, and I feel lucky to have added the creative individuals behind Tsukemen to Blockchain,” said Peter Smith, CEO and Co-Founder of Blockchain. “With such a capable group at its helm, I know that our West Coast office will be instrumental in helping us scale operations and continue building best-in-class products to serve our customers.”

The company has also brought in Marco Santori, formerly of Cooley, as its new President; Peter Wilson, formerly of Google and Facebook, as the Vice President of Engineering; and Breanne Madigan, formerly of Goldman Sachs, as the Head of Institutional Sales and Strategy.