Hmm, do you know how it works?
You do realise that there is always 1 commissioner per member state (including president and vice president)? So UK has just as many commissioners in EU as every other EU nation (even Hill who just resigned will be replaced by a Brit).

Commissioners are proposed by (elected) national governments. The EC president allocates roles based on their experience and capability. The (elected) Parliament has to agree to the list of commissioners and their roles.

Other roles in the Commission, and the non-political roles in Parliament, are effectively open for application by any citizen of a member state, except for seconded national experts, who are put forward by national governments. For any of these roles you need a decent knowledge of a 2nd EU language. I have many friends who work for the Commission, and their take is that UK is under-represented there because there is a lack of civil servants and others who have good enough knowledge of a 2nd European language.
(Smale is stuffed, Thu 30 Jun 2016, 9:06, Reply)