Hendrik has been advising lenders and borrowers on all sorts of corporate finance transactions for more than 30 years. His current focus is on capital market based financing through the issue of bonds and structured investment products. Hendrik's other area of expertise is the regulation of financial markets, including bank supervision. He advises German and international financial institutions, particularly in relation to ownership control, the structuring of regulatory capital instruments, as well as the ongoing supervision by the European Central Bank or the relevant national authority.

Hendrik has been the managing partner of Hengeler Mueller and is a member of the partnership board.