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Please click here to leave me a new message.

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Note: the real world has intruded into this user's wikilife in the form of a job. Johan's wiki-time has therefore been severely curtailed, as well as his ability to have fun in general. We apologise for the lack of maintenance to Johan's contributions here, but he figures that if he earns enough, then he can give society the finger once and for all. Maybe then he can relax, have fun, and stop talking about himself in the third person. Until then, we apologise for any inconvenience that this may cause.

For taking constructive criticism and your hard work on the The Panama Canal project, I, DelftUser, hereby award you the Resilient Barnstar! Congratulations! 19:22 (UTC) Thursday, 2005 December 1


Currently working on[edit]

  • Not much — see above.

Significant contributions[edit]

To do[edit]


Tech info[edit]

Ranting and raving[edit]




Current location[edit]

My web sites[edit]

Note: my old domain is defunct (it got stolen); the new domain is

Logname comes from here

My background[edit]

  • 1984-1986: Worked on real-time assembly-coded device drivers, boot systems, etc. at Burroughs (as was). Lots (over 100k lines) of Byzantine proprietary assembly code.
  • 1987-1989: Helped to develop a fully (hardware) fault-tolerant, open, Unix-based, general-purpose computer system at ITL, PLC, in Hemel Hempstead. C, MC680x0. This system was capable of recovering from any single-point hardware fault with no loss of user-space data and no significant loss of service (a few seconds to reconfigure). The software side was also highly resilient. The company crashed shortly after a successful demo to potential customers.
  • 1990-1993: Systematica PLC / VSF Ltd., working on knowledge-based meta-modelling tools, in ADA, and then C++. Wrote a complete Prolog interpreter.
  • 1994-1996: GPT, working on telecomms management systems. C, C++, Java. Did (most of) a MSc-level telecomms course.
  • 1997-2003: Wind River Systems, Alameda, California, working on embedded products. Developed their web server, headed the team which developed an embedded web browser, then worked on XML technologies for a while. Then became the chief architect for Wind River's embedded high-availability operating system, including design responsibility for the high-availability comms backbone.

Did you notice that most of those companies are dead?

(It wasn't me! Honest!)