Nomura on Tuesday laid off its head of leveraged finance in the Americas, Carl Mayer, as part of its latest round of jobs cuts, The Post has learned.

Overall, the Japanese bank fired 11 managing directors out of about 50 in its US investment division.

The layoffs include Charles Thompson, a managing director in the energy and natural resources group, and Chris Harned, who led mergers and acquisitions. “We blew out one-third of the investment banking unit,” a Nomura source said.

Overall layoffs at Nomura across Europe and North America could total over 1,000 employees this quarter.

In the first quarter, Nomura ranked No. 7 in US LBO loans, 5.5 percent of the market, according to Bloomberg. That was ahead of JPMorgan and Bank of America.

“As soon as market conditions get tough, they leave,” the Nomura source said.