Here is the information published at the EPSO site:
Linguistic administrators (Translators – AD5) for Bulgarian language
OPEN COMPETITION EPSO/AD/35/05
Official Journal C 282 A
Publication date: 15 November 2005
Closing date: 15 December 2005, 12.00 noon (Brussels time)
You may apply for this competition if, on the closing date for online registration, you meet the following requirements:
1. Qualifications
You must have completed the equivalent of a university course at least three years long and obtained the relevant leaving qualification.
2. Professional experience
No professional experience is required.
3. Languages
You must satisfy the three following conditions:
a) have a perfect command of your main language (Bulgarian);
b) have a very sound knowledge of either English, French or German (the first compulsory source language);
c) in addition to the languages chosen under (a) and (b), have a very sound knowledge of either English, French, German, Italian, Polish or Spanish (the second compulsory source language).
Knowledge of other official languages of the European Union or the acceding countries is an advantage and may be assessed if you pass the competition successfully.
Applicants must be citizens of one of the Member States of the European Union or of one of the acceding countries (Bulgaria, Romania).
You can start your electronic application for EPSO/AD/35/05 here

