Dionyshs Tsoumas

Questioner
DISC Type : c

Head of Platform Engineering at Numan

Irakleio, Attiki, Greece

Overview

Dionyshs Tsoumas is the Head of Platform Engineering at Numan, specializing in cloud computing, infrastructure as code, and task automation. A Certified Kubernetes Administrator and Professional Cloud DevOps Engineer, his career includes leadership roles like VP of DevOps at GWI. He holds a Masters degree from the University of Bradford.

He is an active member of the tech community, organizing and hosting LeadDev events that focus on improving management and leadership skills. He has also established a book club for peers to discuss industry-relevant topics, demonstrating a passion for collaborative learning and professional development.

He was a speaker at DevConf, where he co-presented on the novel concept of treating developer environments as canary releases.

Personality Overview

Not Easily Convinced

Value Seeker

Systematic

While they don't hesitate to ask questions, they are generally risk-averse and tend to be late adopters.  They are more likely than others to negotiate on pricing and terms. They prefer to do thorough analysis of any situation.

Topics They Care About

Platform Engineering
His current role is Head of Platform Engineering, building on years of experience managing DevOps teams and shaping internal developer platforms at companies like GWI and Transifex.
Tech Leadership
He actively organizes LeadDev events focused on enhancing management skills and fostering intentional collaboration, showing a clear passion for developing tech leaders.
DevOps Culture
His entire career path is rooted in DevOps principles. He has spoken publicly on topics like service mesh and using Atlantis for automation.

Media Appearances

Dionyshs has no verified media appearances

Work History

9-2025
Head of Platform Engineering at Numan
1-2025 - 10-2025
VP of DevOps and QA at GWI
8-2021 - 1-2025
Head of DevOps at GWI
1-2021 - 8-2021
DevOps Engineering Manager at Transifex
1-2020 - 1-2021
DevOps Engineer at Transifex

Education

2009 - 2010
Master's degree from University of Bradford
2003 - 2009
Bachelor's degree from Aristotle University of Thessaloniki (AUTH)

More Information

Social Presence :

Prographics :

Exp : 12 Location : Irakleio, Attiki, Greece Job Level : Mid-senior Designation : Head of Platform Engineering at Numan
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Insights For Selling To Dionyshs

During A Call Or A Meeting

DO's

  • Back up any claims with data and numbers
  • Emphasize on objective proof of ROI, help them do a thorough evaluation
  • Tell them that you will come back if you don’t have a good answer for a question

DONT's

  • Avoid phrases like ‘do not worry about’, ‘no one compares to’ etc.
  • Don’t depend too much on anecdotal evidence, it reduces their confidence
  • Avoid rushing them, be polite and patient

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Dionyshs is

  • Confidence that the product provides ROI, effective pricing and process adherence matter the most to them.

  • Will you ever get a clear answer from Dionyshs

  • It doesn’t come naturally to them but they can say no if they are not convinced.

Insights For Deal Planning

    How fast (or slow) will Dionyshs move?

  • They can move at a reasonable pace while making their decisions if they have the necessary information.

  • Can Dionyshs take some risk or not?

  • They can take some risk if they are confident that they have analyzed the circumstances well.


You And Dionyshs

Personality Compatibility


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