Company
René Kießling
Basic
Angestellt, Software Developer, Deutsche Telekom IT GmbH
Bonn, Germany
Timeline
Professional experience for René Kießling
Current 5 years and 2 months, since Apr 2017
Software Developer
Deutsche Telekom IT GmbH
Current 14 years and 3 months, since Mar 2008
IT-Consultant (Freelancer)
nebenberufliche Tätigkeit
4 years and 9 months, Jul 2012 - Mar 2017
Softwareentwickler
T-Systems International GmbH
2 years and 3 months, Apr 2010 - Jun 2012
Softwareentwickler
Telekom Deutschland GmbH
8 years and 9 months, Jul 2001 - Mar 2010
Softwareentwickler
T-Mobile Deutschland GmbH
Languages
German
First language
English
Intermediate
Russian
Basic