Former Treasury Secretary Robert Rubin has joined boutique investment bank Centerview Partners, more than a year after he left Citigroup Inc., a person familiar with the situation said Thursday.

Appointed a counselor at Centerview, Rubin will be working with five to six large clients of the firm and will also advise on its strategic development, the person said.

Rubin, a former director and senior counselor for Citigroup, left the bank in January 2009 after being blamed by some for pushing Citigroup to rev up risk-taking as the housing and derivatives bubbles expanded.

At an appearance before the Financial Crisis Inquiry Commission in April, Rubin apologized for the bank's role in the financial crisis, but said he was unaware of problems with collateralized debt obligations that were eventually written down to the tune of $30 billion.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.