Never let your schooling interfere with your education.

Mark Twain

Work Experience

2019/06 – today Chief Technology Officer (CTO), voiio
2018/12 – 2019/06 Senior Venture Developer, Thermondo
  • in-house consulting reporting to the CEO
  • restructuring the existing service organization
2014/05 – 2018/12 Team Lead Software Engineering, Thermondo
  • responsible for the all software development reporting to the CTO
  • line-management and hiring of multiple teams (15 people)
2012/03 – 2015/10 Founder & Managing Partner, Veerkant
  • managing a business and a 5-person team
2011/09 – today IT-Systems Consultant Telekom, Rentrop, Momox, IVT, more...
  • IT strategy consulting
  • software and database development
  • senior/executinve headhunting and hiring consulting
2013/04 – 2013/06 Consulting Design Thinker, B.A.U.M., HPI School of Design Thinking
  • guide a small team through 12 week program
2009/08 – 2011/09 Systems Administrator, Hasso Plattner Ventures


2011 – 2012 Advanced Design Thinking, VNR AG, HPI
2012 Design Challenge: Entrepreneurship,, Stanford University
2011 Basic Design Thinking, Breuninger Stiftung, HPI
2008 – 2013 IT-Systems Engineering, Hasso Plattner Institut, University of Potsdam


native speaker

IQ Test Scores

PR 100
PR 100

Awards & Memberships

Business Plan Competition
3rd place (2014)
Business Plan Competition
2nd place (2012)
Mensa International
high IQ society (since 2008)

It's wonderful what we can do if we're always doing.

George Washington

Johannes is an ambitious, analytic, and at the same time a creative person who's able to reliably execute time-critical tasks and manage complex situations.
He is a valuable asset to any high power team.

Dr. Rouven Westphal (Managing Director @ Hasso Plattner Capital)

Johannes joined Thermondo even thought he could have picked from a variety of companies - but he chose a business that is aligned with his ideas and that he finds worthy to work for. This decision has always accompanied him during our shared time at Thermondo and made him not only work hard and deliver on his job, but also go beyond and invest in the social ecosystem of the tech team and the whole company. Thank you!

Kristofer Fichtner (Venture Partner @ PropTech1 & Co-Founder @ Thermondo)

Es ist immer gut, wenn man weiß, dass man sich auf bestimmte Leute verlassen kann.

Dr. Dirk Barchmann (CEO @ Institut für Verhaltenstherapie)

Johannes was an extremely valuable and pleasant team member. He is highly skilled and quickly familiarizes himself with new IT technologies.
He was very committed to the project, solved urgent and important issues without the need for supervision and willingly took on new responsibilities.

Dr. Philipp Offermann (Product Manager @ Telekom Innovation Labs)

Wer nicht neugierig ist, erfährt nichts!


Want to chat? Let's grab a coffee together!

Johannes Maron
Lennéstr. 19
D-14469 Potsdam

E: M: @codingjoe