Zef Hemel

Galvanizer
DISC Type : Id

Chief Technology Officer at Fixly.pl

Poznan, Wielkopolskie, Poland

Overview

Zef Hemel is the Chief Technology Officer at Fixly. pl, bringing over a decade and a half of experience in engineering management across eight different companies. He specializes in leading diverse teams of up to 100 engineers and holds a PhD from Delft University of Technology. People who have worked with him describe him as a visionary, supportive, and outstanding communicator.

Outside of his CTO duties, Zef is the Managing Editor for alt. management, a publication dedicated to providing fresh perspectives on tech leadership. This role reflects his passion for writing, coaching, and elevating others in his field. His interests also extend to creative writing and exploring effective communication strategies.

He has a knack for being "airdropped" into new organizations and quickly understanding the technical and team landscape.

Personality Overview

Persuader

Trusting

Pragmatic

They are not against taking risks and can make tough decisions when required.
  They are more likely to accept new and exciting technologies. A combination of speed and relationship gets the best response from them.

Topics They Care About

Tech Leadership
Serves as Managing Editor for alt. management, a publication focused on delivering alternative perspectives on technology leadership topics to level up managers.
Scaling Engineering Teams
Has extensive experience managing product teams ranging from small, cross-functional groups to large, distributed teams of about 100 engineers.
AI Engineering
Previously held the position of Head of AI Engineering at Jimdo, where he managed the company's AI platform team and initiatives.

Media Appearances

Zef has no verified media appearances

Work History

10-2025
Chief Technology Officer at Fixly.pl
8-2025
Managing Editor at alt.management
3-2025 - 7-2025
Head of AI Engineering at Jimdo
3-2024 - 3-2025
Head of Engineering at Jimdo
3-2023 - 2-2024
Director of Product Engineering at ResearchGate

Education

2007 - 2011
PhD from Delft University of Technology
2006 - 2007
B.Sc. from University of Groningen

More Information

Social Presence :

Prographics :

Exp : 4 Location : Poznan, Wielkopolskie, Poland Job Level : Leadership Designation : Chief Technology Officer at Fixly.pl
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Insights For Selling To Zef

During A Call Or A Meeting

DO's

  • Invite them for a lunch or a drink/coffee
  • Appeal to their sense of self-worth and how they will impact their organization
  • Use words like ‘partner’, ‘together’, ‘impact’ etc.

DONT's

  • Don’t be excessively objective, focus on building a story first
  • Don’t hesitate from asking questions, but take a friendly and warm approach
  • Don’t make promises that are hard to keep

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Zef is

  • Relationship and product conviction matter equally, followed by a sense of achievement.
  • Will you ever get a clear answer from Zef

  • If they are not convinced, they will say no though in a friendly way.

Insights For Deal Planning

    How fast (or slow) will Zef move?

  • They can reach decisions quickly if they develop trust and confidence in the product.
  • Can Zef take some risk or not?

  • If necessary, they will be ready to take risks.

You And Zef

Personality Compatibility


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