Team

Mark-HakimMark Hakim
Executive Board
Director Marketing & Sales

Click for contact details and biography
Mark Hakim – Executive Board / Director Marketing & Sales Mark-Hakim-300Searching for an alternative to the insurance business, where mathematicians deal with mortality tables, risk minimization, and reassurances, Mark found a more fascinating field of activity for applied mathematics in the area of testing telecommunication systems, where he graduated in 1999 with a diploma thesis about modeling network usage by a vast amount of subscribers. After a few years as coach and later as project manager for test automation systems, he was one of the three Qosmotec founders in 2004. He was responsible for Qosmotec’s most challenging projects in the area of radio frequency modeling for H3G in 2004, DB Systel in 2005, and Alcatel in 2006 which laid the foundations for the unique versatility of the QPER system today. Since 2006 he is responsible for the Qosmotec sales network and customer requirement analysis and is usually the first, new prospective clients will meet for a workshop and technical discussion about their testing needs. Tel.: +49 (0)241 879 75 0 E-Mail:hak@qosmotec.com
Axel-VoigtAxel C. Voigt
Executive Board
Technical Director

Click for contact details and biography
Axel C. Voigt – Executive Board / Technical Director Axel-Voigt-300Axel Voigt moved from Germany’s capital, Berlin, into the most western part of Germany to take the initiative of founding Qosmotec in 2004. As a specialist for databases and software design he gives distinction to the development of all Qosmotec solutions. Since the early days, he has been responsible for all technical decisions on our products. He mastered challenging activities like making the LTS system capable for HSPA+ and LTE speeds, or keeping it modular for the employment as a functional test system in the live network. Today, Axel Voigt is the overall responsible manager for our development teams in Aachen and Berlin.
Tel.: +49 (0) 241 879 75 0 E-Mail: acv@qosmotec.com
Dieter-KreuerDr. Dieter Kreuer
Executive Board
Key Account Manager

Click for contact details and biography
Dr. Dieter Kreuer – Executive Board / Key Account Manager Dieter-Kreuer-300Dieter Kreuer has the longest experience in the field of wireless test automation within the Qosmotec team. He already started in the early phases of 2G communication with progressive realizations of flexible test automation concepts. After managing the development of such systems for seven years for Ericsson in Germany, and another two years as product manager, he joined the Qosmotec founders’ team in 2004. As project manager, Dieter Kreuer is responsible for the major test system installations for our customers. He was in charge of all recent bigger system deliveries involving an LTS system, e.g. to Huawei and Orange, but also field installations for MVNEs like Digicel (France), Teleena (Netherlands) or Voo (Belgium). Tel.: +49 (0)241 879 75 0 E-Mail: dkr@qosmotec.com
rgr-schattenRicardo Grywnow
Head of Technical Support


Click for contact details and biography

Ricardo Grywnow – Head of Technical Support rgr-300Ricardo joined Qosmotec in 2008. He participated in an education program supported by Qosmotec in co-operation with the university of applied science in Aachen that combines practical training on the job with studies in scientific programming. He finished his studies in 2012 with a bachelor of science degree. Ricardo works on the development and design of the LTS system and has been working for various large customer projects, e.g., for Deutsche Telekom, Orange, Huawei and Digicel. Due to his profound system knowledge, he has taken on responsibility for all second-level support enquiries that cannot be solved by our customer support partners and project managers directly.
Tel.: +49 (0) 241 879 75 16 E-Mail: rgr@qosmotec.com
Joerg-Schumann Jörg Schumann
Software Development Manager


Click for contact details and biography
Jörg Schumann – Software Development Manager Joerg-Schumann-N-300With plenty of experience in the design of graphical user interfaces, Jörg Schumann strengthened the Qosmotec team in 2007. He took over the responsibility for various graphical components in the LTS and QPER products. After five years in Aachen, he moved to Berlin where he is now responsible manager for software development in our branch office in the German capital. He takes care of various customer projects, especially, implementing new features for the QPER product. The QPER Test Bed development and Toll Collect as a key customer for this application area are important milestones of his work.

Tel.: +49 (0) 241 879 75 0 E-Mail: jsc@qosmotec.com
Ruoying-Liang Ruoying Liang
QPER System Expert


Click for contact details and biography
Ruoying Liang – QPER System Expert Ruoying-Liang-N-300Due to the complexity of RF signal propagation, our channel emulation system QPER has plenty of simulation features. Some of them are very sophisticated and have been added to the system to meet very specific customer requirements. Ruoying knows them all. She has been working on radio propagation since 2008 when she took over responsibility for the core of our propagation software. Before that, she has been already working for Qosmotec as a student assistant during her studies in computer science at RWTH Aachen University. Today, Ruoying works in our branch office in Berlin.

Tel.: +49 (0) 241 879 75 0 E-Mail: rli@qosmotec.com
Fabian-Mueller-Lutz-NEU Fabian Müller-Lutz
Head of Public Relations


Click for contact details and biography
Fabian Müller-Lutz – Head of Public Relations Fabian-Mueller-Lutz-N-300Fabian’s connection to Qosmotec dates back to the founding days of the company, when he wrote the first user guides to our test automation and handover test systems as a student worker. After finishing his studies, he started a career in public relations and returned to Qosmotec in 2012. Fabian is a certified public relations counsel by the German Public Relations Association (DPRG). He is in charge of Qosmotec’s media relations and social media activities.




Tel.: +49 (0) 241 879 75 12 Mobile: +49 (0) 177 235 62 16 E-Mail: fml@qosmotec.com
Fabian-Mueller-LutzAnja Burlet
Head of Administration


Click for contact details and biography
Anja Burlet – Head of Administration Anja-Burlet-300The employee with the longest history at Qosmotec is our lady for all administrative tasks, Anja Burlet. She has joined our company in the very early days, in 2004. Anja is responsible for all organizational issues, accounting and invoicing. If you have called our central phone number, you have most probably already talked to Anja. And since she has been living in Aachen for more than 30 years now, she is always a good reference for all Qosmotec guests regarding hotel booking, restaurant recommendations, or good hints for spare time activities in the Aachen region.

Tel.: +49 (0)241 879 75 10 E-Mail: ab@qosmotec.com