Peter Sugarman and Troy Bowker, senior members of Rabobank's structured finance team, have joined Lehman Brothers in London. Sugarman joined as managing director and European head of financial engineering and Troy Bowker joined as a director in the same group, according to a spokeswoman. Both report to Amany Attia, head of structured finance in London. The recruits started Monday. Attia, Sugarman and Bowker did not return calls. An official at Rabobank declined comment.