Marianna Gnedin and Nickolay Y. Gnedin bought the four-bedroom, four-bath home at 2427 Lexington Drive in Long Grove from Leo Shapiro and Penny Shapiro for $635,000 on June 28.

The 4,031-square-foot house was built in 1976 in Long Grove South. It is located in the Long Grove Country Club Estates subdivision.

Ms. Gnedin has been a senior software engineer at Varian Medical Systems, which manufactures medical devices and software for treating cancer and other medical conditions.

She previously was a senior software engineer at NAVTEQ and at Gamma Technologies. She also held key positions at Fusion Numerics Inc., and Chroma Energy.

She attended the University of Colorado-Boulder, Rutgers, The State University of New Jersey-New Brunswick, and Sankt-Peterburgskij Gosudarstvennyj Politehniceskij Universitet.

According to BlockShopper.com, there have been 68 home sales in Henderson during the past 12 months, with a median sales price of $550,000.

Address: 2427 Lexington Drive
Buyer(s): Gnedin Y Nickolay and Gnedin Marianna
Seller(s): Leo Shapiro, Penny Shapiro and Penny Digiacomo
Sale date: Jun. 28, 2010