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Danny Tonnis De Graaf Email & Phone Number

Beheerder infrastructuur bij DUO (Dienst Uitvoering Onderwijs) at DUO (Dienst Uitvoering Onderwijs)
Location: Greater Groningen Area, Netherlands, Netherlands 11 work roles 2 schools
1 work email found @duo.nl LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email d****@duo.nl
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Current company
DUO (Dienst Uitvoering Onderwijs)
Role
Beheerder infrastructuur bij DUO (Dienst Uitvoering Onderwijs)
Location
Greater Groningen Area, Netherlands, Netherlands
Company size
2019 employees

Who is Danny Tonnis De Graaf? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Danny Tonnis De Graaf is listed as Beheerder infrastructuur bij DUO (Dienst Uitvoering Onderwijs) at DUO (Dienst Uitvoering Onderwijs), a company with 2019 employees, based in Greater Groningen Area, Netherlands, Netherlands. AeroLeads shows a work email signal at duo.nl and a matched LinkedIn profile for Danny Tonnis De Graaf.

Danny Tonnis De Graaf previously worked as Beheerder infrastructuur at Duo (Dienst Uitvoering Onderwijs) and Beheerder infrastructuur at Zorgpartners Friesland. Danny Tonnis De Graaf holds Bachelor Of Information And Communication Technology, Student Technical Computing Science At Hanzehogeschool Groningen from Hanzehogeschool Groningen.

Company email context

Email format at DUO (Dienst Uitvoering Onderwijs)

This section adds company-level context without repeating Danny Tonnis De Graaf's masked contact details.

*@duo.nl
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AeroLeads found 1 current-domain work email signal for Danny Tonnis De Graaf. Compare company email patterns before reaching out.

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Profile bio

About Danny Tonnis De Graaf

Danny Tonnis De Graaf is a Beheerder infrastructuur bij DUO (Dienst Uitvoering Onderwijs) at DUO (Dienst Uitvoering Onderwijs). He possess expertise in information technology, itil certified, computer science, cisco networking, fortinet fortigate firewalling and 3 more skills.

Listed skills include Information Technology, Itil Certified, Computer Science, Cisco Networking, and 4 others.

Current workplace

Danny Tonnis De Graaf's current company

Company context helps verify the profile and gives searchers a useful next step.

DUO (Dienst Uitvoering Onderwijs)
Duo (Dienst Uitvoering Onderwijs)
Beheerder infrastructuur bij DUO (Dienst Uitvoering Onderwijs)
groningen, groningen, netherlands
Website
duo.nl
Employees
2019
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11 roles

Danny Tonnis De Graaf work experience

A career timeline built from the work history available for this profile.

Beheerder Infrastructuur

Zorgpartners Friesland

Leeuwarden Area, Netherlands

Cisco / Huawei network engineer

Nov 2011 - Feb 2019

System Administrator Windows / Linux

Viaict

Groningen, Nederland

IT Research and development. System administrator Windows / Linux

Jan 2009 - Oct 2011

Graduate Internship

Thales

Hengelo

"Cloud computing in an embedded environment".

Feb 2011 - Jul 2011

Intern

Tagtic.Nl

Physical to virtual webhosting migration. Design and implement a data backup and redundant strategy.

Feb 2010 - Jul 2010

Oo Php Programmer

Tagtic.Nl

Development of e-commerce newsletter web application

Jan 2009 - Dec 2009

System Administrator

Fivelland

System administrator Windows 2003 / Citrix

Mar 2008 - May 2008

Internship System Administrator

Fivelland

System administrator Windows 2003 / citrix

Sep 2007 - Feb 2008

Internship System Administrator

Zwartwoud B.V.

Internship system administrator

Sep 2006 - Feb 2007

Internship

Gti Vitel

Implementing network cable infrastructures

Sep 2005 - Feb 2006
Team & coworkers

Colleagues at DUO (Dienst Uitvoering Onderwijs)

Other employees you can reach at duo.nl. View company contacts for 2019 employees →

MW Marieke Wildeboer Marieke Wildeboer Colleague at Duo (Dienst Uitvoering Onderwijs)Roden, Drenthe, Netherlands, Netherlands View → AR Anny Rietjens Anny Rietjens Colleague at Duo (Dienst Uitvoering Onderwijs)Eindhoven, North Brabant, Netherlands, Netherlands View → BL Bert Lubbers Bert Lubbers Colleague at Duo (Dienst Uitvoering Onderwijs)Greater Groningen Area, Netherlands View → JH Jelger Haanstra Jelger Haanstra Colleague at Duo (Dienst Uitvoering Onderwijs)Greater Groningen Area, Netherlands View → ZB Zhou-Mei B. Zhou-Mei B. Colleague at Duo (Dienst Uitvoering Onderwijs)Sappemeer, Groningen, Netherlands, Netherlands View → AP Alize Postma Alize Postma Colleague at Duo (Dienst Uitvoering Onderwijs)Greater Groningen Area, Netherlands View → MT Mirjan Timmer Mirjan Timmer Colleague at Duo (Dienst Uitvoering Onderwijs)Haren, Groningen, Netherlands, Netherlands View → JD Janet Duursma Janet Duursma Colleague at Duo (Dienst Uitvoering Onderwijs)Larochemillay, Bourgogne-Franche-Comté, France, France View → JP Joey Postema Joey Postema Colleague at Duo (Dienst Uitvoering Onderwijs)Groningen, Groningen, Netherlands, Netherlands View → LK Liesbeth Kooreman Liesbeth Kooreman Colleague at Duo (Dienst Uitvoering Onderwijs)Leiden, South Holland, Netherlands, Netherlands View →
2 education records

Danny Tonnis De Graaf education

Bachelor Of Information And Communication Technology, Student Technical Computing Science At Hanzehogeschool Groningen

Hanzehogeschool Groningen

Network Administrator

Noorderpoort
FAQ

Frequently asked questions about Danny Tonnis De Graaf

Quick answers generated from the profile data available on this page.

What company does Danny Tonnis De Graaf work for?

Danny Tonnis De Graaf works for DUO (Dienst Uitvoering Onderwijs).

What is Danny Tonnis De Graaf's role at DUO (Dienst Uitvoering Onderwijs)?

Danny Tonnis De Graaf is listed as Beheerder infrastructuur bij DUO (Dienst Uitvoering Onderwijs) at DUO (Dienst Uitvoering Onderwijs).

What is Danny Tonnis De Graaf's email address?

AeroLeads has found 1 work email signal at @duo.nl for Danny Tonnis De Graaf at DUO (Dienst Uitvoering Onderwijs).

Where is Danny Tonnis De Graaf based?

Danny Tonnis De Graaf is based in Greater Groningen Area, Netherlands, Netherlands while working with DUO (Dienst Uitvoering Onderwijs).

What companies has Danny Tonnis De Graaf worked for?

Danny Tonnis De Graaf has worked for Duo (Dienst Uitvoering Onderwijs), Zorgpartners Friesland, Viaict, Thales, and Tagtic Communication And Technology.

Who are Danny Tonnis De Graaf's colleagues at DUO (Dienst Uitvoering Onderwijs)?

Danny Tonnis De Graaf's colleagues at DUO (Dienst Uitvoering Onderwijs) include Marieke Wildeboer, Anny Rietjens, Bert Lubbers, Jelger Haanstra, and Zhou-Mei B..

How can I contact Danny Tonnis De Graaf?

You can use AeroLeads to view verified contact signals for Danny Tonnis De Graaf at DUO (Dienst Uitvoering Onderwijs), including work email, phone, and LinkedIn data when available.

What schools did Danny Tonnis De Graaf attend?

Danny Tonnis De Graaf holds Bachelor Of Information And Communication Technology, Student Technical Computing Science At Hanzehogeschool Groningen from Hanzehogeschool Groningen.

What skills is Danny Tonnis De Graaf known for?

Danny Tonnis De Graaf is listed with skills including Information Technology, Itil Certified, Computer Science, Cisco Networking, Fortinet Fortigate Firewalling, Object Oriented Software, Wireshark, and Network Analyzer.

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