Markus Ostertag

Tech Executive · AWS Hero · CTO & CEO Background · Cloud & Digital Strategy

Munich, Bavaria, Germany

About

Tech Executive with CEO & CTO track record. I've led teams of 35+, held P&L responsibility for >150M EUR revenue, and built cloud-native platforms serving 1.5B requests/month. Today I drive AWS strategy and digital transformation at scale — combining deep technical depth with business ownership. The power to question is the basis of all human progress. — Indira Gandhi A team is not a group of people that work together. A team is a group of people that trust each other. — Simon Sinek I start with the premise that the function of leadership is to produce more leaders, not more followers. — Ralph Nader

Experience

  • Chief AWS Technologist at adesso SE
    Jan 2024 - Present · 2 yrs 7 mos

    Driving adesso's AWS business with >150% YoY growth - owning the strategic partnership with AWS across technical, commercial, and operational dimensions. Responsible for competency development, delivery portfolio, and executive-level customer engagements. Recognized thought leader on Digital Sovereignty within the AWS European Sovereign Cloud initiative.

  • Co-Founder & Organizer at AWS User Group Munich
    Jul 2014 - Present · 12 yrs 1 mo

    Founded the AWS User Group Munich in 2014 (currently with >5000 members) and organizing the in-person meetups with 80-150 AWS enthusiasts each month in different offices around Munich

  • Higher Education Lecturer at Fachhochschule Salzburg
    2014 - Present · 12 yrs 7 mos

    Workshops and seminars about scalability and AWS as part of the study path Multimedia Technology

  • Chief Technology Officer at Ryte
    Jun 2021 - Aug 2023 · 2 yrs 3 mos

    - Responsibility for the tech department and all stakeholder relations - Leadership for ~35 people including the subsidiary in Vietnam - Operative and strategic guidance for the technical vision and roadmap in close partnership with VP Product - Designing and implementing an agile as well as scalable organizational structure for the tech department

  • Team Internet AG (8 yrs 7 mos)
    • CEO
      Mar 2018 - May 2021 · 3 yrs 3 mos

      Led the company through significant growth and a successful acquisition by CentralNic (now Team Internet Group) in 2019 - managing all aspects of the transition including stakeholder alignment, operational continuity, and strategic positioning. P&L ownership with >150M EUR annual revenue.

    • VP Engineering
      Jan 2017 - Feb 2018 · 1 yr 2 mos

      - Leading and managing all engineering efforts in 4 teams with a total of 20 people - Introducing and implementing the Scrum methodology for all engineering teams - Technical vision & strategy for the three different products - Supporting the product owner team as a partner for roadmaps, decision making and market knowledge - Leading multiple cloud migration projects

    • Head of Development (Advertiser Products)
      Nov 2012 - Dec 2016 · 4 yrs 2 mos

      - Refactoring and architecting the real-time-bidding platform adTONIC. (former DNTX) - Architecting the AWS infrastructure for more than 1.5 billion uniques/month - Cost optimizing architecture and infrastructure for all cloud projects of the company - Leading multiple smaller side projects