Stefan Söllner

ist verfügbar. ✅

Bis 2019, Co-Founder & Head of Operations, Argo Venture Studio

Berlin, Deutschland


Professional experience for Stefan Söllner

  • 2 years and 11 months, Jan 2017 - Nov 2019

    Co-Founder & Head of Operations

    Argo Venture Studio

    We are solving entrepreneurial challenges by using our 20+ years of experience to build a unique ecosystem for entrepreneurial solutions that turn visions into powerful businesses. • Built infrastructure and lead operational team • Process implementation to support venture development • Data analytics and KPI performance controlling • Project management for several tech ventures • Accountable for legal, finance and accounting • Web development and marketing automation

  • 1 year, Aug 2018 - Jul 2019

    Operations Manager


    We build powerful AI solutions for medium-sized and large scale enterprises. We offer end-to-end consulting for your entrepreneurial challenges. • Built infrastructure for AI development • Planning and operating design sprints • IT-Project management for app development • IT Administration

  • 2 years and 1 month, Dec 2016 - Dec 2018

    Senior Coach Design Thinking / Business Model Innovation

    Argo Advisory Solutions

    Argopreneurs empowers entrepreneurs and their organizations to navigate the entrepreneurial lifecycle, achieve sustainable growth and realize digital and cultural transformation. • Analysis and evaluation of business models • Facilitating Design Thinking sprints and workshops • Implementing methods for fast scaling companies • Creating Business Model and strategy workshops • Business process optimization • Establishing events for leadership development

  • 1 year and 6 months, Feb 2017 - Jul 2018

    Co-Founder & Operations Manager

    Healthtech Essentials

    We build KARDEA - the first health platform to provide everyone with valid, comprehensible and personalized information about their own health. We combine knowledge from all areas of the health system and thus lay the foundation for a healthier society.

  • 1 year and 3 months, Oct 2015 - Dec 2016

    Co-Founder & CEO

    Mantilope UG

    Consulting Start-ups and Investors on business models and rapid growth.

  • 1 year and 3 months, Oct 2015 - Dec 2016


    Argo Ventures

    • Evaluation of investment opportunities • Investor relations • company building • strategy and organizational growth

  • 6 months, Feb 2016 - Jul 2016

    Business Analyst

    Procedera Consult GmbH

    • Preparation of due diligence audits • Analysis of balance sheets and annual financial statements • Market and competitor analysis

  • 1 year and 7 months, Mar 2014 - Sep 2015

    Business Intelligence Analyst

    Assecor GmbH

    • Creating data dashboards for the management • Big‐Data analytics and data preparation • Structuring and running workshops on self‐service BI • Analysis and implementing KPIs / Score Cards

  • 2014 - 2015

    Chairman Of The Board

    BCPro e.V.

    • Strategy and business development • Leading the HR and Marketing department • Developing a personal controlling system for performance reviews • Creating an assessment center for recruiting new members

  • 2010 - 2014

    Supervisor / Dozent

    SAE Institute GmbH

Educational background for Stefan Söllner

  • Business Economics

    University of Applied Sciences Berlin

    Corporate Finance, Investment, Operations Management

  • Mechatronik

    Ausbildung Industrie-Mechatroniker

    Elektrotechnik, Automatisierungstechnik, Mechanik

  • Medienmanagement / Audio Production

    SAE Institute Berlin

    Audio Produktion, Projektmanagement, Marketing, Business Planning, Copyright


  • German

    First language

  • English


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