This table shows programming languages, software platforms and methods that I have used in different projects. The list is not exhaustive, contact me for specific questions.
| Skill | Project(s) |
| Linux/Unix | Declic, Sonar, Documentation Management System |
| Open Source | Declic, Sonar, IOSolution, Documentation Management System |
| Macintosh | IOSolution, E6B 'whiz wheel' simulator, FEV1, Internet Cost Control, Spectrostar, Alice, CPF-2, CPF, Foon4Mac, Where's the Waste? |
| C | Declic, Sonar, IOSolution, IOSolution, Spectrostar, Airport risk analysis, Alice II, Alice, CPF-2, CPF |
| C++ | Declic, Sonar, Internet Cost Control, Spectrostar, Foon4Mac, Where's the Waste? |
| Python | Declic |
| PHP | Documentation Management System |
| Java | Documentation Management System, E6B 'whiz wheel' simulator |
| Qt | Sonar |
| Realbasic | E6B 'whiz wheel' simulator, FEV1 |
| Assembler | Alice, CPF |
| XML | Declic, Documentation Management System |
| XSLT | Declic |
| FPGA, HDL | Sonar |
| Igor | Airport risk analysis, CPF-2 |
| DO-178B | Alice II, Alice |
| Embedded hard- en software | Declic, IOSolution, Alice II, Alice, CPF |
| MySQL | Documentation Management System |
| Analoge electronica | Declic, Sonar, Alice II, Alice, CPF, Analog electronics |