Stephan Joest
President @Amicale Citroën Internationale Aci
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WORK HISTORY
President @Amicale Citroën Internationale Aci
Paris, FR
The Amicale Citroën Internationale (ACI) is the network of all \"Automobiles Citroën\" & \"DS Automobiles\" related non-profit car clubs worldwide, representing more than members organized in clubs across 47+ countries (status 01/2024). Share your \"double chevron\" passion with all and join us!Find out more at has been working as a representative for Germany Citroën clubs at ACI since 1989. In 2004, he was one of the founding members of the ACI when it was formally registered as an association according to the Law of 1901. Since then he had been Germany Delegate and now is elected ACI President since August 2014.
EDUCATION
University of Düsseldorf
Dipl.-Phys.
SKILLS
ABOUT STEPHAN JOEST
Bridging the gap between complex physics and commercial success.With a background in physics and 30+ years in digital innovation, I operate at the intersection of deep tech and business strategy. I don’t believe in selling \"products\" — I focus on building the mission-critical infrastructure and related services that allows global chipset makers and industries such as automotive leaders to innovate without friction.At Ericsson, my focus is on high-stakes environments where \"standard\" isn’t enough:* 5G (and beyond) Device & Network Testing Services: I have successfully led the deployment of first-of-their-kind networks, e.g. as \"Lab as a Service\", enabling clients to cut their R&D cycles and bring 5G-enabled products to market faster, fully 3GPP compliant, and working in global CSP networks.* Strategic Market Growth: My track record is defined by scaling complex accounts from initial pilot to regional standard, up to global customers managed from here in Germany. I consistently rank in the top percentile for project volume and ecosystem expansion, focusing on long-term ROI for all stakeholders.* Automotive & Chipset Integration: I bridge the gap between silicon and the street. By aligning Ericsson’s 5G roadmap with the specific requirements of automotive OEMs, I ensure that connectivity is a driver of value, not a bottleneck.The \"Consultant\" Mindset: I view sales as a technical challenge, as well as being the \"lawyer of my customer in our company\". Whether it’s negotiating multi-year infrastructure roadmaps or navigating the landscape of ambitious services, my goal is always the same: Zero-latency execution. Beyond the Tech: Since 2014, I have served as President of Amicale Citroën Internationale. Leading a global network of over clubs in 43 countries requires the same skills as a global account director: high-level stakeholder management, cultural diplomacy, and a deep respect for engineering heritage.Let’s discuss how latest (or even prototype) tech in cellular networks can redefine your industry’s baseline — or talk about the timeless design of a DS.
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