Not sure whether this has been posted already but not the worst opportunity...
Train Maintainer (031680)
Position Type - Full Time
London Underground
Salary Range: £38,701 - £50,069
https://tfl.taleo.net/careersection/external/jobdetail.ftl?job=031680&tz=GMT%2B01%3A00&tzname=Europe%2FLondon