I enjoyed working at IBM: it was full of bright enthusiastic people who were mostly the same age as me. Some highlights were:
- The early years with MPSX.
- The STRUDL team.
- Assignment in Boca Raton with the IBM PC division.
- Managing the forecasting team at ASE.
But all good things come to an end: in 1996 IBM and I parted company and I started Decision Models with the objective of providing consultancy, software development and tools for decision support.
I have always been interested in pushing the boundaries of whatever software I am working with and so I was soon bumping up against the memory and performance limits of Excel. This led to the launch in 2001 of my website Decision Models. and FastExcel , my commercial product for profiling Excel calculation performance and memory useage. In the last 10 years FastExcel has been selling steadily and has been updated to run with each new version of (Windows) Excel.
My latest challenge is to learn C++ and start developing a new family of fast Excel functions to help minimise the slowdown caused by excessive use of Lookups, SUMPRODUCT and array formulae.
In 2009 Microsoft awarded me the honour of becoming a Microsoft Excel MVP. The best part of this award is getting to meet the Excel team and some of the legends of the Excel world at the annual MVP summit in Redmond.
My other passion is racing my Wayfarer dinghy TANJ3: