|  | The author of this web site is Peter Tattersall, who runs Tattersall Computer Developments Ltd and through this he works full time as a Systems Test Engineer. 
 Peter is now contracted to a defence company in the South East where he is part of a team developing a complex test system.
 
 His most previous post was with Thameslink testing their complex traffic management systems.
 
 Prior to that, he was with BAe Systems. Previous to that he had a 3.5 year contract with Bombardier Transportation in Derby, where he was a Systems Test Engineer working on the SSL London Underground train. Here, he tested all requirement changes on the Train Control Management System.
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Page updated by Peter Tattersall, July 2025