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Bert Heesterbeek Email & Phone Number
Docent Natuurkunde and Wiskunde
at
und
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✓ Verified Jul 2026
3 data sources
Profile completeness 100%
Current company
Role
Docent Natuurkunde and Wiskunde
Location
The Hague, South Holland, Netherlands
Company size
Who is Bert Heesterbeek? Overview
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Quick answer
Bert Heesterbeek is listed as Docent Natuurkunde and Wiskunde at und, a with 101 employees, based in The Hague, South Holland, Netherlands. AeroLeads shows a matched LinkedIn profile for Bert Heesterbeek.
Bert Heesterbeek previously worked as Docent Natuurkunde / Wiskunde at Und and Docent Natuurkunde / Teacher Physics at Und. Bert Heesterbeek holds Master’S Degree, Special Education And Teaching, Eerste Graad Bevoegdheid Voor Natuurkunde from Leiden University.
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Email format at und
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und
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Profile bio
About Bert Heesterbeek
Bert Heesterbeek is a Docent Natuurkunde and Wiskunde at und. He possess expertise in telecommunications, product management, purchasing, international sales, mpls and 18 more skills. He is proficient in French, Chinese, German and English. Colleagues describe him as "Bert was a great asset to our team - had much drive, brought up new ideas and viewed things from a new perspective. Bert knows the services and players on the telecom well. I trust he will be a valuable contribution to a sales or a product management team in the telecom industry." and "Bert was a great asset to the team we worked in - extremely knowledgeable, diligent and innovative. I count myself lucky that I am still in a position to benefit from his skills and experience even though we now work in different parts of the business."
Listed skills include Telecommunications, Product Management, Purchasing, International Sales, and 19 others.
Current workplace
Bert Heesterbeek's current company
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16 roles · 40 years
Bert Heesterbeek work experience
A career timeline built from the work history available for this profile.
Docent Natuurkunde / Wiskunde
Current
Und
Klassen 2 t/m 6 VWO
Oct 2018 - Present
Docent Natuurkunde / Teacher Physics
Und
Klassen 3 tot en met 5 Havo en 3 tot en met 6 VWO.
Aug 2017 - Jan 2019
Docent Natuurkunde / Teacher Physics
Und
Aug 2016 - Jul 2017
Docent Natuurkunde / Teacher Physics
Und
Aug 2015 - Jul 2016
Docent Natuurkunde / Physics Teacher
Und
Vervanging voor klassen V4 en V5
Apr 2015 - Jul 2015
Docent Natuurkunde / Physics Teacher
Und
Tijdelijke invulling wegens ziekte docent. Klassen 2 t/m 5 HAVO en 2 t/m 6 VWO
Jan 2015 - Apr 2015
Programme Manager
Tndh
Managing a programme with multiple projects for TNDH for the realisation of initiatives in the areas of innovation, education and knowledge sharing
May 2014 - Feb 2015
Telecom Product / Project Manager - Open For New Challenge
.
International experience with product and project management, buying and selling of telecommunication services. Willing to relocate within Europe.
Nov 2013 - Jan 2015
Purchase Manager Telecom
- 25% reduction on invoices through renegotiations and using alternatives- Up to 30% project discounts for large customer projects- 10% reduction of cost through invoice reconciliation- New carriers and technologies introduced to support customer needs- Responsible for purchase of Raw copper, DSL, Ethernet, Fibre and IP-VPN (MPLS) and voice services- 15% cost reduction through infrastructure changes- Managed quality and performance of carriers (telecom services providers)- Liaised with the various regulatory bodies in the Netherlands and Belgium
May 2009 - Apr 2012
Regional Account Director Telecom
- Sold AT&T’s data and IP products to existing and new accounts in Europe and the Middle East. Portfolio included IP VPN (MPLS and IP-SEC), DWDM, Ethernet, IP Transit, Internet Access products, SDH/SoNet, Hosting, CDN, Video Conferencing- Responded to complex RFP’s with final responsibility to create, edit and deliver proposal- Supported customers in finding best solution- Contracted new customers and grew revenue with existing customers
Oct 2006 - May 2009
Global Access Product Manager
- Presented access strategy to customers- 1500 new DSL business grade DSL connections in 15 countries- 4000 DSL connections for residential workers in 8 countries- Managed DSL country implementation program- Selected DSL providers and negotiated contracts in 23 countries- Created pricing models and prices- Trained colleagues of various disciplines- Maintained marketing and other documentation
Jul 2001 - Oct 2006
Senior International Project Manager
Implemented infrastructure solutions in European countries and joined European team for the development of ‘AT&T project management methodology and tools’
May 2000 - Jul 2001
Project Manager/Consultant
Fixing various problem, delivering solution and managing various projects around Europe
May 1996 - May 2000
International Project Manager/ Consultant Ict
Activities as Project Manager with KLM- Implemented a commercial support application in European offices- Designed and implemented a corporate email system, including migration from old email platform- Merged sales offices in a worldwide joint venture with ALITALIA- Upgraded 500+ workstations within limited time window, based on limited number of standard profilesActivities as Consultant with KLM- Solved problems to improve laptop connectivity for a global sales force while away from the office - Fixed a persistent network problem that impacted a large number of users in three weeks, where others failed to find the problem- Remedied interworking issues between several email systems, solving long and unpredictable delays in email delivery
Apr 1996 - Apr 2000
Consultant
1987 - 1996
~9 yrs
2 education records
Bert Heesterbeek education
Master’S Degree, Special Education And Teaching, Eerste Graad Bevoegdheid Voor Natuurkunde
Msc, Applied Physics
FAQ
Frequently asked questions about Bert Heesterbeek
Quick answers generated from the profile data available on this page.
What company does Bert Heesterbeek work for?
Bert Heesterbeek works for und.
What is Bert Heesterbeek's role at und?
Bert Heesterbeek is listed as Docent Natuurkunde and Wiskunde at und.
Where is Bert Heesterbeek based?
Bert Heesterbeek is based in The Hague, South Holland, Netherlands while working with und.
What companies has Bert Heesterbeek worked for?
Bert Heesterbeek has worked for Und, Tndh, ., Easynet, and At&T.
How can I contact Bert Heesterbeek?
You can use AeroLeads to view verified contact signals for Bert Heesterbeek at und, including work email, phone, and LinkedIn data when available.
What schools did Bert Heesterbeek attend?
Bert Heesterbeek holds Master’S Degree, Special Education And Teaching, Eerste Graad Bevoegdheid Voor Natuurkunde from Leiden University.
What skills is Bert Heesterbeek known for?
Bert Heesterbeek is listed with skills including Telecommunications, Product Management, Purchasing, International Sales, Mpls, Dsl, Ethernet, and Wireless.
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