Pascal Costanza is a research scientist at the ExaScience Lab at Intel Belgium.
More recently, he has developed Context-oriented programming, with Robert Hirschfeld.
His past involvements include specification and implementation of the languages Gilgul and Lava, and the design and application of the JMangler framework for load-time transformation of Java class files.
He is furthermore the initiator and lead of Closer, an open source project that provides a compatibility layer for the CLOS MOP across multiple Common Lisp implementations.
He has also co-organized numerous workshops on Unanticipated Software Evolution, Aspect-Oriented Programming, Object Technology for Ambient Intelligence, Lisp, and redefinition of computing.