Ceriel Jacobs (1955) is a research programmer in the Computer Systems group of the Vrije Universiteit Amsterdam, and has been for the past 35 or so years.

The current research projects Ceriel Jacobs is involved in are:

• Vlog, a Datalog engine that combines a column-based memory layout with novel optimization methods that avoid redundant inferences at runtime;
• Trident, an adaptive low-level storage engine for very large knowledge graphs;
• Cashmere, a programming system for heterogeneous compute clusters with many-core devices such as GPUs, something we call a compute jungle;
• Many-Core Levels (MCL), a framework that allows one to write computational kernels for different kinds of many-core hardware;

As a programmer, Ceriel Jacobs is not involved much in teaching, but he does coordinate the programming assignment for the Concurrency and Multithreading course, one of the programming assignments of the Parallel Programming Practical, and is occasionally involved in bachelor or master projects.