David Hoffmeister, last week named new chief financial officer for Invitrogen, will earn a base salary of $425,000 plus an incentive bonus, guaranteed for his first year, and a one-time signing bonus of $375,000, the company said this week in an 8-K filing with the US Securities and Exchange Commission. Hoffmeister will also receive a $224,000 employment bonus payable on or before each of the first three anniversary dates of his employment.