Our Leadership

Our management team of thirteen members and two principal consultants reflect long standing international management and industry experience.

Adil Kaya

CEO

Adil Kaya serves as CEO of SIGOS. He joined SIGOS in 1990

Mark Stumpf

Chief Financial Officer

Mark Stumpf joined SIGOS in March of 2017 as Chief Financial Officer with responsibility for all areas within the Finance group.

Joachim Bamberger

Executive Vice President Sales

Joachim Bamberger is leading the SIGOS sales department.

Norbert Neumeister

Director Legal and Purchase

Norbert Neumeister serves as Director Legal and Purchase.

Gerald Wittmann

Head of Research and Development

He is responsible for SITE and GlobalRoamer extensions

Bjorn Koetz

Head of Marketing and Business Development

Bjorn Koetz joined SIGOS in 2004 as Business Development Manager and later Sales Director APAC

Carsten Schlaghoff

Head of Professional Services

He is responsible for planning, conducting and controlling of SITE projects

Florian Leeder

Head of Business Unit Roaming

Florian Leeder is Head of Business Unit Roaming since September 2014

Steffen Öftring

Director Revenue Assurance & Head of Consulting Services

Steffen Öftring is Director RA & Head of Consulting Services since January 2018, responsible for the complete consulting portfolio.

Danish Naeem

Head of Business Unit App Experience

Danish Naeem is Head of Business Unit App Experience since June 2018.

Goce Talaganov

Head of Business Unit QoS/QoE

Goce Talaganov is Business Unit Manager QoS/QoE since June 2018, responsible for driving the complete product portfolio and solutions within the QoS/QoE domain.

Peter Philips

Head of Platform Operations

Peter Philips is Head of Platform Operations since January 2018, responsible for all SIGOS cloud platforms and its resources.

Shicheng Hu

Principal Consultant

Shicheng Hu was one of SIGOS' co-founders in 1989. He is working as SIGOS Principal Consultant

Hans Banken

Principal Consultant Telecommunications

Hans Banken works as Principal Consultant Telecommunications in the Professional Services Team.

Adil Kaya

CEO

Adil Kaya serves as CEO of SIGOS. He joined SIGOS in 1990 and became Managing Director in 2008, driving and increasing the company’s worldwide success continuously.

Mr. Kaya is an established international manager of broad experience in telecommunications. With his in-depth technical and market knowledge he has made significant contributions to network operators, vendors as well as standardization institutes.

Mr. Kaya holds a Master’s degree in Electrical Engineering from the University of Applied Sciences in Cologne, Germany.

Danish Naeem

Head of Business Unit App Experience

Danish Naeem is Head of Business Unit App Experience since June 2018. He is responsible for creation of new products and use cases, marketing, and lead generation. Preparing budget, and developing policies, goals, and tactics to achieve fiscal targets are also part of his responsibilities.

 

He started his career in SIGOS in 2007 in the Project Management group and successfully ran international projects in Europe and Africa for a year and a half. After that he moved on to form a global Technical Sales group and in his capacity as the Group Leader was responsible for pre-sales and customer solutions for all SIGOS products. After working 5 years in this position, he moved to run Business Strategy for SIGOS as a VP. He worked in this position for 3 years and was responsible for M&A, Strategic partnerships, and Market Analysis.

Danish studied Telecommunications and Computer Sciences. He holds a Master’s Degree from University of Applied Sciences Offenburg in Communication and Media Engineering. He also holds a Bachelor’s in Computer Science from University of Karachi. 

Carsten Schlaghoff

Head of Professional Services

Carsten Schlaghoff is Head of Professional Services. He is responsible for planning, conducting and controlling of SITE projects, as well as for maintaining SITE systems after system delivery. His department covers expertise in Project Management, System Installation, SITE Consulting & Customer Support.

Carsten joined the company in 1998. After starting his business carrier as System Engineer, Consultant and Project Manager, he became 2007 responsible Group Leader of the PM Team and Head of Department in 2010.

He holds a University Degree in Electrical Engineering of RWTH Aachen, Germany.

Norbert Neumeister

Director Legal and Purchase

Norbert Neumeister serves as Director Legal and Purchase. He accounts for all aspects of the company’s contract and purchase management.
 
He joined the company in 1999, held leadership positions in Sales, Marketing and Legal and has built up the global distribution partner network with great success. Before joining SIGOS he worked for Alcatel as Telecommunications Engineer and Project Manager where he was based in Czech Republic for 6 years responsible for Alcatel’s Switching System Division.
 
Mr. Neumeister studied electrical engineering at Georg-Simon-Ohm University of Applied Sciences in Nuremberg, Germany.

 

Gerald Wittmann

Head of Research and Development

Gerald Wittmann serves as Head of Research and Development. He is responsible for SITE and GlobalRoamer extensions as well as developing new concepts and features.

Gerald has more than 10 years of experience in the telecommunications industry, including work at Ericsson Eurolab. He joined SIGOS in 2003 as software engineer for SITE, later moved on to lead the SIGOS R&D application team, acted as Technical Product Manager and became Head of R&D in 2012.

Mr. Wittmann holds a degree in Electrical Engineering from the Friedrich-Alexander University Erlangen-Nuremberg, Germany.

Mark Stumpf

CFO

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Bjorn Koetz

Head of Marketing and Business Development

Bjorn Kötz joined SIGOS in 2004 as Business Development Manager and later Sales Director APAC, driving the international growth in the Asia and Pacific region. Today he is heading Business Development, Marketing and the product management SPOC division.
 
In his career, he worked for DoubleClick, Thomson-Reuters and the Handelsblatt Joint Venture GH100, a pre-IPO analytical platform and later as Head of Strategic Alliances at tyntec Inc, a convergence and cloud telephony provider. Bjorn Kötz holds multiple university degrees in the fields of Economics, International Management, Int. Law, Marketing and Media Engineering.

Joachim Bamberger

Executive Vice President Sales

Joachim Bamberger is leading the SIGOS sales department since 2010.

He joined the company in 2006 as project manager and moved to the sales team in 2007. Today he is responsible for all sales activities worldwide.Having worked for a variety of other companies before joining SIGOS, he is looking back to more than 15 years of experience in the telecommunications industry. .

Mr. Bamberger holds a University degree in Electrical Engineering from University Erlangen, Germany.

Kenneth Mouton

Head of Business Unit Revenue Assurance & Fraud Management

Kenneth Mouton heads the Revenue Assurance & Fraud Management business, operating out of Ghent/Belgium.

He joined Meucci Solutions in 2007 where he served as Head of Customer Service Delivery Interconnect & Fraud and was also commercially responsible for the African and Middle-East Sales accounts. Earlier he worked at Fortis Bank and Belgacom International Carrier Services.

Mr. Mouton holds an Engineering degree in Computer Sciences and a Master’s degree in Conflict & Development. He also received an Executive MBA graduating from Vlerick Business School.

Shicheng Hu

Principal Consultant

Shicheng Hu was one of SIGOS' co-founders in 1989. He is working as SIGOS Principal Consultant for long-term business development and the vision towards 2020.

As a world-leading testing expert for mobiles and networks, Mr. Hu is the TF GRQ Chairman in GSMA Network Group. He used to work for ETSI CTI and was the leader of 3GPP MCC TF 160 for mobile testing for many years.

He received his MSc in Radio Physics from the University of Fudan in Shanghai, China, and Dipl.-Ing. in Informatics from the University of Erlangen-Nuremberg, Germany.

Hans Banken

Principal Consultant Telecommunications

Hans Banken works as Principal Consultant Telecommunications in the Professional Services Team. Since March 2013 he is also Product Marketing Manager for Revenue Assurance.

He started his professional career at PKI (today Alcatel Lucent) in Nuremberg as a software developer for telecommunication systems. In 1990 he joined the SIGOS team during the start-up phase. In 1998 he started working on the implementation of the SITE test system and later became System Architect.

Hans Banken holds a University degree in Computer Science at RWTH Aachen with a focus on software engineering.

Florian Leeder

Head of Business Unit Roaming

Florian Leeder is Head of Business Unit Roaming since September 2014, driving the complete Roaming and Interconnect area related product and service portfolio. Further he is responsible for the administration, operation and expansion of the GlobalRoamer test platform.

He covered different SIGOS leadership positions in Support, Product Management and Business Development since 2000. Prior he worked as an external consultant for Siemens and Colt Telecom.

Florian studied in Germany and Italy. He holds a University degree in Political Science from the University of Bamberg.

Steffen Öftring

Director Revenue Assurance & Head of Consulting Services

Steffen Öftring is Director RA & Head of Consulting Services since January 2018, responsible for the complete consulting portfolio in the areas of national and international QoS/QoE, App experience, Revenue Assurance and Roaming implementation for SIGOS’ world-wide customer base. Since several years, he also pushes the active Revenue Assurance solutions to the market and represents the portfolio on various platforms, events and conferences.

He joined SIGOS in 2006 and has covered various positions in QA, Technical Sales, Project Management and he has started SIGOS’ consulting business as Senior Consultant within SIGOS back in 2009.

Prior to SIGOS, he worked as a consultant for the Robert Bosch GmbH in several SAP projects, introduction of a companywide time tracking system and virtualization of the production planning.

Steffen studied Economics and Computer Science. He holds a University degree in Business Information Technology from the Otto-Friedrich University of Bamberg.

Gove Talaganov

Head of Business Unit Qos/QoE

Goce Talaganov is Business Unit Manager QoS/QoE since June 2018, responsible for driving the complete product portfolio and solutions within the QoS/QoE domain.

He joined SIGOS in 2012 and since than he covered technical sales and senior product management positions within the company. Prior to SIGOS he worked in various engineering roles in both telecommunication sector as well as large enterprises specifically designing and dimensioning robust fixed and wireless networks that can facilitate mission critical services such as Voice, Voice Conferencing, Video, Video Conferencing, Unified communication suits and Payment.

 

Goce holds a Master of Science (MSc.) in Communication Systems from the School of Information and Communication Technology, KTH Royal Institute of Technology Stockholm, Sweden, focusing on advanced network convergence for delivering IP and IMS based services and applications in fixed and mobile networks.

Peter Philips

Head of Platform Operations

Peter Philips is Head of Platform Operations since January 2018, responsible for the roll-out, upgrade and maintenance of all SIGOS cloud platforms and its resources (GlobalRoamer, Site in Cloud, Test Call Generators, Terminators, and App Experience shared platforms).

 

He covered Development Group Leader (2014-2016) and Operations Manager (2017) for the RAFM department, before leading the operations on all SIGOS platforms.

Prior to SIGOS, he was co-founder and Operations Manager of Meucci Solutions NV (2003-2013, until the takeover by SIGOS), and worked as software architect and process developer for Windvision and Cellstructures.

Peter studied Economics. He holds a University degree in Applied Economics from the University of Louvain (Belgium).

Mark Stumpf

Chief Financial Officer

Mark Stumpf joined SIGOS in March of 2017 as Chief Financial Officer with responsibility for all areas within the Finance group including Financial Planning and Analysis, Accounting and Corporate Controlling as well as Billing and Collection.

Prior to joining SIGOS , Mark gained over 25 years experience as a finance and business leader, from start-ups to established enterprises in various IT sectors. His expertise includes building strong finance teams to effectively support all aspects of the business.

Mark grew up and studied in the USA and holds a Bachelors degree in Business Adminstration from the Univerisity of Georgia.

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