questio to native English speakers

Hi,

could youn please let me know if this company description to be added to a CV is correct and understandable enough in English

Thank you in advance

Marketing assistant, customer care and online data administrator (Temporary)                                     h

 Fresco Srl - Russian leading provider of online electronic maps and corporate directories  

(Adept at maximising sales leads; accurately administrating online customer records in a fast paced environment.)

Thank you very muc