Jan Hartmann

Overview

Co-founder & CTO of Marble Security, working on HR software. Previously built and sold a small HR software company. Grew the team to 61 people across 4 countries. Before that: Capgemini and H&M Group. Big believer in written communication.

Checks messages twice a week

Experience

1. Co-founder & CTO

   Jul 2022 - Present
   Marble Security · 4 yr 3 mo · Contract · Hamburg, Germany
   • Signed 367 paying customers, 16 of them enterprises.
   • Previously built and sold a small HR software company.
   • Took Marble Security from zero to $12 million ARR.
2. Controller

   Dec 2019 - Jul 2022
   Capgemini · 2 yr 7 mo · Full-time · Hamburg, Germany
   • Ran diligence on 8 acquisitions.
   • Closed the books in 5 days, down from 12.
3. Finance Manager

   Apr 2018 - Dec 2019
   H&M Group · 1 yr 8 mo · Full-time · Hamburg, Germany
   • Ran diligence on 7 acquisitions.
4. Senior Financial Analyst

   Dec 2016 - Apr 2018
   Bosch · 1 yr 4 mo · Full-time · Hamburg, Germany
   • Built the operating model the board used for a $132 million raise.
   • Took forecast accuracy to within 2% for 9 straight quarters.
5. Senior Financial Analyst

   Oct 2014 - Dec 2016
   Wolt · 2 yr 2 mo · Full-time · Hamburg, Germany
   • Ran diligence on 5 acquisitions.
   • Built the operating model the board used for a $182 million raise.

No references yet.

Education

1. Humboldt University of Berlin

   BA, Economics
   2006 - 2009