Part of his brief will see Taylor increasing UBS's contribution to establishing and maintaining dialogue between UBS, the wider finance industry and European institutions.
He will also build relationships with policy-makers, regulators and industry associations at EU level, in the UK and in other EU member states.
While the post is based in London, Taylor will report to and work closely with group head of public policy Peter Buomberger, who is based in Zurich.
He will also report to UBS Warburg's joint global head of corporate finance Rory Tapner in London.
He joins from the UK Treasury, where he was a director, a post he held since 1998.
Prior to that, Taylor was financial counsellor at the UK's Permanent Representation to the European Union in Brussels.