
Ana-Maria Caballo
MSc
speaks: Spanish, German, English
convex ZT GmbH, Graz
Engineer

Lukas Cernosta
Dipl.-Ing.
speaks: Czech, English
convex ZT GmbH
Civil engineer

Ilker Demir
Dipl.-Ing.
speaks: Turkish, German, English
convex ZT GmbH, Graz
Civil engineer

Noah Donauer
intern
speaks: German, English
convex ZT GmbH
Draftsmen

Anes Dzinic
speaks: German, Bosnian, English
convex ZT GmbH, Graz
Project Manager
responsible for 3D-print and drone flight

Konrad Edegger
Dipl.-Ing. (FH)
speaks: German, English
convex ZT GmbH, Graz
Division Manager
responsible for training and education
Konrad Edegger studied construction design and management at the FH Joanneum Graz. He is division manager for special issues since 2016.

Mahmut Eminovic
BSc
speaks: German, English, Bosnian
convex ZT GmbH
Civil engineer

Ertan Ertekin
BSc
speaks: German, English, Turkish, Russian
convex ZT GmbH, Graz
Site supervisor

Madjid Fazeli
Dipl.-Ing.
speaks: Persian, German
convex ZT GmbH, Graz
self-employed
Madjid Fazeli studied civil engineering at the Graz University of Technology. He is co-founder of the engineering practice Fazeli-Wolfesberger Ingenieure GesBR. Madjid Fazeli joined convex ZT GmbH working self-employed in 2014.

Salman Gandarov
BSc
speaks: Spanish, Adyghe, Russian, English
convex ZT GmbH
Civil engineer

Emilia Gonzales
Intern
speaks: German, English, Spanish
convex ZT GmbH
Civil engineer

Sandra Heiligenbrunner
Dipl.-Ing.
speaks: German, English
convex ZT GmbH
Authorised officer
Division Manager
responsible for Human Ressources
currently on parental leave
Sandra Heiligenbrunner completed an apprenticeship in technical drafting, and studied civil engineering at the FH Campus Vienna and after that at the FH Joanneum Graz. She is division manager for building construction since 2016 and authorised officer since 2017.

Anita Hiden
speaks: German, English
convex ZT GmbH, Graz
Office Management

Viktoria Hofer
Ing.
speaks: German, English
convex ZT GmbH, Graz
Engineer
responsible for team- and project photography

Marina-Edvina Iosu
Dipl.-Ing.
speaks: Romanian, English
convex consulting engineers s.r.l., Cluj-Napoca
Engineer

YiÄŸit KamiloÄŸlu BSc
speaks: German, English, Turkish
convex ZT GmbH, Graz
Architect

Muhannad Kasem
BSc
speaks: Arabic, German, English
convex ZT GmbH
Civil engineer

Emrah Kemaloglu
Dipl.-Ing.
speaks: Turkish, German, English
convex ZT GmbH, Graz
Civil engineer

Başak Keser
MSc in Environmental Engineering
speaks: Turkish, English
convex Ltd. Åžti., Istanbul
Senior specialist sales & business development

Martina Klinger
speaks: German
convex ZT GmbH, Graz
Office Management

Juraj Kmet'ko
Ing.
speaks: Slovakian, English
convex ZT GmbH
Engineer

Florian Knobloch
Dipl.-Ing.
speaks: German, English
convex ZT GmbH, Graz
Authorised officer
Division Manager
Florian Knobloch studied civil engineering at the Technical University of Graz. He is division manager for structural design since 2016, and authorised officer since 2017.

Sucheta Kolhatkar
Technician
speaks: Marathi, Hindi, Japanese, English, German
convex ZT GmbH
Civil engineer

Natalie Kraxner
Ing.
speaks: German, English
convex ZT GmbH, Graz
Project Manager
currently on parental leave

Claudia Lackner
Ing.
speaks: German, English
convex ZT GmbH, Graz
Engineer

Juergen Lohmann
Ing.
speaks: German, English
convex ZT GmbH, Graz
Division Manager
responsible for IT
Jürgen Lohmann graduated from the HTBLA Ortweinplatz in Graz. He is division manager for construction design since 2016.

Ana Muzic
MSc
speaks: Croatian, English, Italian, German
convex ZT GmbH, Graz
Structural engineer

Regina Nagy
BSc
speaks: Hungarian, German, English
convex ZT GmbH, Graz
Civil engineer

Wolfgang Nesitka
FH-Prof. Dipl.-Ing. Dr.techn.
Legally certified expert
speaks: German, English
convex ZT GmbH, Graz
Partner
Wolfgang Nesitka studied civil engineering at the Graz University of Technology, and made his PhD at the same institution. He was Technical Director at the construction Company Ed. Ast & Co. in Graz, and in the following, Head of the Study Course "Construction Design and Economics" at the FH Joanneum University of Applied Sciences in Graz. He is founding partner of convex ZT GmbH.

Erwin Neumeyer
Ing.
speaks: German, English
convex ZT GmbH, Graz
Site Superviser

Armend Nura
Dipl.-Ing.
speaks: German, English, Albanian
convex ZT GmbH, Graz
Structural engineer

Rajashree Omprakash
BSc
speaks: Hindi, German, English
convex ZT GmbH, Graz
Engineer

Ilayda Özköse
speaks: Turkish, English
convex Ltd. Åžti., Istanbul
Office Manager

Roland Paier
Dipl.-Ing.
speaks: German, English
DIROPA IT GmbH
IT Manager
Roland Paier studied Business Informatics and is Microsoft Partner (Datacenter and Midmarket Solution Provider). Since 2004 he has been in charge of the IT infrastructure of convex ZT GmbH.

Katja Ratschiller
speaks: German, English
NYXAS OG
Website Designer
Katja Ratschiller is web designer. Since 2008 she is in charge of the website of convex_AT, convex_TR and convex_RO.

Yahya Saral
Dipl.-Ing.
speaks: Turkish, English
convex Ltd. Åžti., Istanbul
Survey engineer

Marinko Sekulic
Ing.
speaks: German, Bosnian, English
ZB Sekulic, Graz
Electrical engineer

Murat Sezer
Technician
speaks: Turkish, English
convex Ltd. Åžti., Istanbul
Site supervisor

Süleyman Sezer
Dipl.-Ing.
speaks: Turkisch, English
convex Ltd. Åžti., Istanbul
Civil engineer

Izudin Sisic
Ing.
speaks: Bosnian, German, English
convex ZT GmbH
Engineer
responsible for VR- and AR-applications

Bernd Spatzenegger
Dipl.-Ing.
speaks: German, English
p-m-consult e.U., Purkersdorf
Mechanical engineer

Tacettin Sümer
Dipl.-Ing.
speaks: Turkish, English
convex Ltd. Åžti., Istanbul
Civil engineer

Tassilo Szyszkowitz
Dipl.-Ing. Dr.techn.
speaks: German, English
convex ZT GmbH, Graz
Partner
Tassilo Szyszkowitz studied civil engineering at the Graz University of Technology, and made his PhD at the same institution. He co-founded the engineering practice Graber-Szyszkowitz ZT GmbHÂ 1981 in Graz, Austria. Since 2006, he is partner of convex ZT GmbH.

Jennifer Thorer
speaks: German, English
convex ZT GmbH, Graz
Engineer
currently on parental leave

Fabian Till
Dipl.-Ing.
speaks: German, English
convex ZT GmbH, Graz
Civil engineer
responsable for 360° photography

Elisabeth Uhl
Ing.
speaks: German, English
convex ZT GmbH, Graz
Engineer

Timur Uzunoglu
Dipl.-Ing. Dr.techn. MICE CEng
speaks: German, Turkish, English, French
convex ZT GmbH, Graz
Managing Director
responsible for quality assurance
convex consulting engineers s.r.l., Bucharest
Director
Timur Uzunoglu studied civil engineering at the Vienna University of Technology, and made his PhD at the Graz University of Technology. In 2004, he founded convex ZT GmbH. Timur Uzunoglu is teaching Industrial Construction at the FH Joanneum Graz since 2005. He represents the British "Institution of Civil Engineers" in Austria.

Laszlo Gergely-Varga
Dipl.-Ing.
speaks: Romanian, Hungarian, German, English
convex consulting engineers s.r.l., Cluj-Napoca
Authorised Officer

Veronika Vasileva
BSc
speaks: Bulgarian, English, German, Russian
convex ZT GmbH, Graz
Architect

Paul Wegerer
BSc
speaks: German, English
convex ZT GmbH, Graz
Civil engineer

Maximilian Weiland
BSc
speaks: German, English
convex ZT GmbH
Civil engineer

Murat Gökçe
Dipl.-Ing.
speaks: Turkish, German, English
convex Ltd. Åžti., Istanbul
Managing Director
Murat Gökçe studied civil engineering at the Istanbul University of Technology and in the following, at the Vienna University of Technology. After fifteen years of management experience in various international companies, he joined the convex group in 2006 as founding partner of convex Ltd. Şti.

Stephan Zwanzger
speaks: German, English
convex ZT GmbH, Graz
Engineer