Configuration Management Tools (ClearCase, subversion, Serena Dimensions, git)
Ticket Management Tools (ClearQuest, Bugzilla, Redmine)
Project Management (MS Project) & Office (MS Office, OpenOffice)
Virtual Systems (vmWare, VirtualBox, Virtual PC, qemu)
Programming languages and tools (Delphi, C, C++, Python, FORTRAN, …)
Database (MySQL, Oracle, postgresql, sqlite)
Real Time Environment (vxWorks, RT Linux)
Requirements management tools: DOORS (DXL language skills)
Unix (bash, server setup, apache, git, virtual box, oracle database, java, qemu, Qt5 development)