I graduated as an applied mathematician from МИИТ in Moscow, then worked till 1990 at ИПУ, under a somewhat notorious boss.
I spent the next decade in Germany, the Netherlands and France, first as Alexander von Humboldt research fellow, then as a Habilitandedstipendiat of the DFG, and, finally, as a professor at the Math department of UVSQ.
In 2001 I joined Bell Labs (then at Lucent Technologies), first as a member of technical staff, later as a department head.
I am with the U of I since 2011.
Some more details, here.