Hello, people!

I'm banking professional (and Magister in Economics) from Latvia and I'm awaiting when Switzerland will open its labour market for new EU members' citizens. Now I have a dilemma - which "Swiss" language is necessary to know when looking for a job in Swiss banks? German or French? Latvian, English and Russian are already in my head...
Would you kindly advice me which language should I learn to increase my chances?
Many thanks in advance for your kind assistance!

German

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Depends where in Switzerland you plan to work. Simply put: German in Zürich, French in Geneva. More detail look at the Linguistic geography of Switzerland.