About

Our all-star team combines years of operational experience at operators of different sizes. A story of VoIP specialists, open-source pioneers, innovation and operational excellence.

Dr. David

Bachmann

CEO

David is a lawyer by training and a former Associate Partner at McKinsey & Company. He joined ng-voice in 2019 as CEO and shareholder with a focus on ng-voice’s commercialization and growth strategy. David focuses on our sales & business development efforts, long-term strategy as well as our partnerships and investor relations. He is the Founder and Co-President of the European Association of Next Generation Telecommunications Innovators (EANGTI).

Carsten

Bock

CIO & Founder

With 20+ years of experience in VoIP and IMS, Carsten led the development and implementation of the first IMS/ VoLTE platform at Telefonica in Germany and was a senior member of the Kamailio management team, developing the IMS extensions in Kamailio. He founded ng-voice in 2011 because he wanted to develop a flexible alternative to existing IMS solutions in the market. As Chief Innovation Officer, Carsten focuses his time on developing radical solutions to telco’s problems and pushing ng-voice’s innovation agenda.

Quirin

Maderspacher

COO

As ng-voice's Chief Operating Officer, Quirin is in charge of our customer deployments, our support infrastructure, as well as our people and finance functions. He joined ng-voice in 2021, previously working at McKinsey & Company where he focused amongst others on strategies of cloud service providers in different industry verticals.

Azhar Sayeed

CTO

With more than 25 years of experience in networking, telecommunications and software, Azhar joined ng-voice in 2024 as Chief Technical Officer. Previously, he was Global Chief Technologist and Architect at RedHat, where he worked with operators worldwide on cloud and virtualisation strategies. Prior to RedHat, Azhar spent 17 years at Cisco, where he led software product management, engineering, and solution delivery teams. Here at ng-voice, he currently leads our product portfolio, product delivery, product vision and technology stack.

Advisory Board

Our advisory board consists of highly experienced senior figures, regarded as top experts in the field.

Rubin Ritter

Former Co-CEO Zalando

Rubin was co-CEO at Zalando SE from 2010 to 2021, helping to scale the company from a start-up to one of Germany's largest listed companies with revenues of more than EUR 10bn and 15.000 employees. He is passionate about company building and supports growth companies as an active shareholder.

Jan Frykhammar

Former CFO & CEO Ericsson group

Jan is an experienced telecoms executive who held senior roles at Ericsson Group, such as Group Executive VP and CFO, and served as interim CEO until 2017. He currently serves as Senior Independent Director of Alphawave Semi Plc, Chairman of Sweepr Technologies Ltd, Zinkworks Ltd and as senior advisor to Telavox AB. ​He deeply believes in a company culture that promotes inclusivity, creativity and collaboration while maintaining a strong work ethic.

Mike Wright

Former group MD Telstra

Mike has shaped the telecom industry for several decades and has been Telstra’s group Managing Director and Head of Network Engineering from 2013-2018. Today he is a member of several boards, amongst others he is a Board Observer at Vantage Towers and a Non-Executive Director at Waveconn, an advisor to a number of start up companies and a Senior Advisor to the Boston Consulting Group (BCG).

Dr. Katrin Suder

Former State Secretary, German Ministry of Defense

Katrin's career has focused on technology at the intersection of business, the public sector and society. She spent 14 years at McKinsey helping telecom and software companies as well as public institutions with strategy and operations, and then served as State Secretary in the German Ministry of Defence. She now advises companies on growth, technology and ESG, and serves on various boards.

Sergio Quiroga

Former CEO Ericsson LATAM and Caribbean

Sergio held different senior executive management positions at Ericsson, where he served as CEO of LATAM and Caribbean for 7 years and as Global Head of Sales and Commercial Management. He is the Chairman of the Board of Directors of SWEDCHAM and advisory to several technology companies across Europe, Latin America and the United States.

Maciej Kranz


GM Enterprise Pure Storage

Maciej Kranz helped pioneer the Internet of Things industry through more than 30 years of computer networking and technology innovation experience in multiple industries. Served in leadership roles at Cisco Systems for 20 years in the fields of enterprise networking and IoT, and as EVP & CTO, Member of the Executive Board from 2019-2023 at Kone, and now Member Board of Directors IoTecha Corp. He authored the New York Times bestseller, “Building the Internet of Things,” and is a faculty member of Singularity University.

Urs Schaeppi

Former CEO of Swisscom Group

Urs is an experienced telecoms and IT executive who held senior positions at Swisscom, including executive roles in the Mobile & B2B business and 9 years as Group CEO. He currently serves as Chairman of Emtelle Group, Chairman of Twinner/Thömus and is engaged in various business transformation mandates. He deeply believes that a customer and people oriented culture, along with a strong value proposition and excellent customer service, are key success factors.

Gowton Achaibar

Former CEO Ericsson India and COO Ericsson NAM

With more than 40 years of Telecom expertise, Gowton started his career at AT&T Bell Laboratories in 1985 and has held different roles in the Telecom industry including CTO of GSM Operator Powertel (now part of T-Mobile), CEO of Ericsson India (2008- 11), COO of Ericsson North America, and Head of Dell Technologies Global Telecom Services Organization. He currently resides in Dallas and serves on the boards of Connect5G, and Cellsite Solutions.

Steve Elfman

Former President of Network Operations and Wholesale Sprint

Steve is the former President of Network Operations and Wholesale of Sprint (now T-Mobile) and held many executive positions with companies such as Infospace Mobile, Motricity, Terabeam, AT&T Wireless, GE Capital, and 3M Company. He has served on the boards of Syntonic Limited, Affirmed Networks, Inc., CollabIP, Inc., and others, contributing valuable knowledge to the telecommunications and wireless data industries. He brings extensive knowledge of telecommunications, wireless data, and cellular industries to our Board.

ng-voice founded the European Association of Next Generation Telecommunications Innovators (EANGTI) with partners to create a strong and SME-friendly ecosystem that fosters innovation in the European telecommunications landscape. Access www.eangti.org to know more.

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