Dennis Cornelissen

Critic
DISC Type : C

Teamleider & IT engineer at Tredion ICT & Telecom

Alblasserdam, South Holland, Netherlands

Overview

Dennis Cornelissen is an IT Engineer and Team Leader at Tredion ICT & Telecom with a background in system administration from ROC Davinci College. He holds a Microsoft 365 Certified: Administrator Expert certification and has extensive experience with endpoint management, Exchange, and Hyper-V.

He is passionate about team growth, frequently sharing job openings and highlighting the positive work culture at his company. He actively participates in industry events to stay current on the latest technology trends.

He recently attended the Modern Endpoint Management Summit and the Expert Live 2025 conference to deepen his knowledge.

Personality Overview

Objective Thinker

Precise

Critic

Unless the value is proven by data, they are unlikely to value fancy features.  They enjoy working alone and do not rely on others very often. It is very likely that they will negotiate pricing or other important terms.

Topics They Care About

Endpoint Management
Recently attended the Modern Endpoint Management Summit, showing a keen interest in the latest developments with Intune, EntraID, and Defender.
Cybersecurity
Attended the Expert Live 2025 event, where he highlighted a keynote on cybersecurity and risk management as being particularly valuable.
Microsoft 365 Ecosystem
Holds a Microsoft 365 Certified: Administrator Expert certification, indicating deep expertise in Microsoft's suite of products, including SharePoint.

Media Appearances

Dennis has no verified media appearances

Work History

3-2014
Teamleider & IT engineer at Tredion ICT & Telecom
9-2013 - 5-2014
Systeembeheer Online medewerker at Tredion ICT & Telecom
2-2013 - 5-2013
Beheerder ICT Afstudeeropdracht at NLmatch B.V.
2010 - 8-2013
Medewerker beheer ICT at Fysergo BV
2009 - 2010
Medewerker beheer ICT (Stage) at Fysergo BV

Education

2012 - 2013
Systeembeheer from ROC Davinci College
2009 - 2012
Medewerker Beheer ICT BOL3 from ROC Davinci College

More Information

Social Presence :

Prographics :

Exp : 18 Location : Alblasserdam, South Holland, Netherlands Job Level : Mid-senior Designation : Teamleider & IT engineer at Tredion ICT & Telecom
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Insights For Selling To Dennis

During A Call Or A Meeting

DO's

  • Tell them what ROI they can expect
  • Be ready for penetrating questions and critical examination of your pitch
  • Leverage facts and figures wherever possible; use percentages, numbers etc.

DONT's

  • Don’t rush them till they have clearly gotten all the necessary information
  • Don’t try to give too many examples of other users, they like to make their own decisions
  • Don’t try too hard to build a relationship with them

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Dennis is

  • Strong evidence of ROI, effective pricing, and proven data points matter the most to them.
  • Will you ever get a clear answer from Dennis

  • It is not very hard for them to say no if they are not convinced about the decision.

Insights For Deal Planning

    How fast (or slow) will Dennis move?

  • Their decision-making is neither very fast nor very slow, they are somewhere in between.
  • Can Dennis take some risk or not?

  • They can take risks if their analysis shows that it would be worth it.

You And Dennis

Personality Compatibility


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