Michael Ellam, managing director of the Treasury's international and finance directorate, has been appointed chairman of the EU's financial services regulation committee.
Ellam will steer the work of the Brussels-based Financial Services Committee (FSC) ahead of meetings of the EU's 27 finance ministers while retaining his role at the Treasury in London, according to Bloomberg, which cites two unnamed UK government officials.
Verena Ross, director of the FSA's international division, has already been appointed director of the European Securities and Markets Authority (ESMA).
The appointments will give the U.K. a greater say in the shaping of EU financial regulation after losing out to France when Michel Barnier took over as EU Financial Services Commissioner last year.
"Part of maintaining the UK's place as the world's leading financial market-place is making sure we're at the heart of the global effort to reform the sector to make it stronger and safer," Chancellor George Osborne said in a statement.
"That's why it's so important that two of our top policymakers will be at the centre of both making the rules and implementing them."
Two global vehicles
'Further plug advice gap'
Must appoint separate CEOs and boards
Advisers do come out well
Will report to Mark Till