2004 -
2020 Advisor, Consultant and Interim Manager @
2016 -
2019 CEO @
2016 -
2016 Mentor and Venture Developer @
2015 -
2015 Founder and CEO Mission Control @
2013 -
2015 Co-Founder and CTO @
2011 -
2013 Founder and CEO @ 7Moments UG
2008 -
2010 Head of SoLo Maps on Devices @
2004 -
2008 Founder @ Plazes (acquired by Nokia)
2002 -
2004 COO @
2000 -
2002 Director IT @
1997 -
2000 Director IT @ i-clue GmbH
Stefan Kellner Education
Universität Heidelberg 1991
-
1997
Stefan Kellner Skills
Web 2.0
Entrepreneurship
Location Based Services
Mobile Technology
Building Companies
Start-ups
Entrepreneur
E-business
Online Marketing
Mobile Applications
iPhone
Linux
Scrum
Product Development
Business Strategy
Social Media
Mobile
CSS
Team Building
Program Management
HTML5
jQuery
Cloud Computing
Mobile Internet
Venture Capital
Photography
Small Social Networks
Photo Sharing Services
Strategy
Senior Management
Social Networking
Mobile Devices
Online Advertising
HTML 5
Strategic Partnerships
Digital Strategy
Product Management
Ruby on Rails
E-commerce
User Experience
Information Architecture
Mobile Marketing
Business Modeling
Agile Methodologies
Corporate Development
Usability
Consulting
Public Speaking
Executive Management
Start Ups
It Executive
Business Law
E Commerce
Consumer Internet
E Business
Marketing Strategy
Business Development
Stefan Kellner Summary
Stefan Kellner, based in Germany, is currently a CEO at kollex. Stefan Kellner brings experience from previous roles at Scoperty, BeyondBuild GmbH, Stefan Kellner and Qixxit. Stefan Kellner holds a 1991 - 1997 Universität Heidelberg. With a robust skill set that includes Web 2.0, Entrepreneurship, Location Based Services, Mobile Technology, Building Companies and more. Stefan Kellner has 2 emails and 4 mobile phone numbers on RocketReach.
Get contact details of over 700M profiles across 60M companies - all with industry-leading accuracy. Sales and Recruiter users, try out our Email Finder Extension.
Use our AI-Powered Email Finder
Find business and personal emails and mobile phone numbers with exclusive coverage across niche job titles, industries, and more for unparalleled targeting. Also available via our Contact Data API.