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We are dedicated to Data Training

StackFuel is an energetic Berlin-based startup that is working hard to meet the training needs of industry through our data training.

Our Vision is a Future of Learning

  • We believe you never stop learning. Acquiring new knowledge on ever-changing technologies and practices for your workplace is a lifelong process.
  • We encourage employees to claim for vocational training and create a business world that sees education as a priority and a respected workplace asset.
  • We enable enterprises to equip their workforce with a data-driven mindset to secure the future of their company in the digital age.

Meet our Team

Leo Marose

Leo Marose

Co-Founder & CEO
Stefan Berntheisel

Stefan Berntheisel

Co-Founder & CTO
Christian Fontius

Christian Fontius

Account Executive

Anastasija Nujanzina

Marketing Manager

Meike Jantzen

Strategic Partnership Manager
Lisa Freiberger

Lisa Freiberger

HR & Team Manager
Rebecca Marzahn

Rebecca Marzahn

Sales & Marketing Assistant

Tareq Damoon

Senior Graphic Designer

Jakob Huss

Training Operations Manager
Alexander Eckrot

Dr. Alexander Eckrot

Educational Data Scientist

Tino Pietraßyk

Educational Data Scientist

Dr. Alexander Friedenberger

Educational Data Scientist

Thomas Kranzkowski

Junior Data Scientist

Evgeny Bobkin

Lead Software Engineer
Hans-Werner Roitzsch

Hans-Werner Roitzsch

Kristiyan Katsarov

Kristiyan Katsarov

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Tim Seeger

Developer (Ausbildung)

We at StackFuel are driven by:


We bring enthusiasm to work and take pleasure in spending time with our colleagues and customers.


We meet our goals as individuals and a company, while always anticipating the challenges of the future.


Our workplace works with a respectful mindset where we value the differences of others.

Career at StackFuel

Join us in the heart of Berlin

We are a team of dedicated developers, pragmatic data scientists, busy project managers and passionate founders. As a growing startup we are regularly looking for motivated people to enrich our team. Below are our current vacancies and if you see yourself in any one of them do not hesitate to get in touch, we’d love to hear from you.

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