John Wolters
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John Wolters Email & Phone Number

Location: Delft, South Holland, Netherlands 3 work roles 15 schools
1 work email found @mac.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

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Work email j****@mac.com
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Role
Applicatiemanger
Location
Delft, South Holland, Netherlands
Company size

Who is John Wolters? Overview

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Quick answer

John Wolters is listed as Applicatiemanger at Ministerie van Infrastructuur en Waterstaat, a with 2734 employees, based in Delft, South Holland, Netherlands. AeroLeads shows a work email signal at mac.com and a matched LinkedIn profile for John Wolters.

John Wolters previously worked as Application Manager at Ministerie Van Infrastructuur En Waterstaat and Software Engineer Data Management Systems & Database Administrator at Wageningen University & Research. John Wolters holds Faculty Of Informatics And Information Science, Informatics, Bsc from De Haagse Hogeschool / The Hague University Of Applied Sciences.

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Email format at Ministerie van Infrastructuur en Waterstaat

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{first}.{last}@mac.com
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Profile bio

About John Wolters

I’m perfectionistic and very accurate but know when it's good enough. Working on a case I'm very driven. Here I can apply my analytical skills very well. Regularly the solution slips into my mind on my way home. Then I hardly can’t wait to see if it works.The last 20 years I worked on a Smalltalk system for dynamic multi-context information processing and rule-driven workflow enactment. This complex system works with a GemStone/S object-base (in 2019 ±800 million objects) running on a Solaris server. Of this system I was the database administrator and application manager in a DTAP-street. To this system I added various functionalities and improvements. In the beginning in a team of 7 colleagues and the last years 3 colleagues. For this I deployed (half-yearly) releases to make new versions available to the users.The first years I worked with Oracle and Access databases. De last years I did various dba jobs on SQL-server databases. Besides that I worked on a few C# projects, some web ASP.NET applications and a Multi Agent Simulation model (also see the link to the publication about this in this LinkedIn profile).

Listed skills include Visualworks Smalltalk Software Engineer and Gemstone Database Administrator.

Current workplace

John Wolters's current company

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Ministerie van Infrastructuur en Waterstaat
Ministerie Van Infrastructuur En Waterstaat
Applicatiemanger
Delft, ZH, NL
3 roles

John Wolters work experience

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

Software Engineer Data Management Systems & Database Administrator

The Hague Area, Netherlands

During my work I have made and maintained applications and databases with various programming languages, development environments, databases and servers as mentioned below.Tasks:• Maintain Smalltalk (object-oriented programming language) system for dynamic multi-context information processing and rule-driven workflow enactment named Artis (Agricultural economics Research Tool for Information-induced Software). This complex system works with a GemStone/S object-base (in 2019 ±800 million objects) running on a Solaris server in DTAP street. In this system there are also some artificial intelligence aspects deployed;• Databases administrator on Solaris and Windows servers;• Convert Artis GemStone/S & Smalltalk;• Envy/Store Artis source code dba;• Perform Performance Tuning and Optimisation;• Data/process analysis;• Make, expand and maintain applications.Results:• (Half-yearly) releases Artis;• Automated testing in Artis;• Made various functionalities, enhancements and improvements (Performance Tuning and Optimalisation) in Artis;• Canonised GemStone/S object-base, 390 million to 60 million objects;• Given internal GemStone/S course (2001);• Made a few VisualStudio applications;• Made/adapted CORMAS Multi Agent System for a Ph.D. project. Did presentation at an European Smalltalk User Group conference with this model;• Made Access database/application;• Made/maintained Fortran program and model;• Maintained several Oracle applications.Programming environments:1998-2019 GemTalk GemStone/S object database 5.1.2-3.2.16 with VisualWorks Smalltalk 3-7.10;2015-2019 Microsoft SQL Server 2008-2017;2005-2015 Microsoft VisualStudio 2005-2017;2007-2011 CORMAS (COmmon pool Resources and Multi-Agent Simulations) framework;1996-1997 Access;1994-1998 Fortran;1994-1998 Oracle database, SQL and Forms;1994-1998 System Development Workbench.

Jan 1994 - Jun 2019
15 education records

John Wolters education

Education record

Advanced Programming Practices From Gemtalk Systems In Beaverton

Education record

Gams (General Algebraic Modeling System) Tools

Education record

Visualworks Smalltalk 7.3 And Store

Education record

Solaris 8 System Administration I

Education record

Performance & Advanced System Management From Gemtalk Systems In Beaverton

Education record

Object Oriented Databases: The Odmg-Standard From Post Academic Education-Informatics

Education record

The Fundamentals Of Gemstone/S From Gemtalk Systems In Beaverton

Education record

Advanced Delphi3 Programming & Power Delphi3

Education record

Visual Works Smalltalk 3

Education record

Training Delphi Application Development

Education record

Oracle Application Builder & Sql*Forms

Education record

European Smalltalk User Group Conference Douai, Köthen, Brussels, Amsterdam, Brest, Edinburgh, Ghent

Education record

Cincom Smalltalk User Conference Frankfurt

Education record

Smalltalk Solutions Conference Toronto
FAQ

Frequently asked questions about John Wolters

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What company does John Wolters work for?

John Wolters works for Ministerie van Infrastructuur en Waterstaat.

What is John Wolters's role at Ministerie van Infrastructuur en Waterstaat?

John Wolters is listed as Applicatiemanger at Ministerie van Infrastructuur en Waterstaat.

What is John Wolters's email address?

AeroLeads has found 1 work email signal at @mac.com for John Wolters at Ministerie van Infrastructuur en Waterstaat.

Where is John Wolters based?

John Wolters is based in Delft, South Holland, Netherlands while working with Ministerie van Infrastructuur en Waterstaat.

What companies has John Wolters worked for?

John Wolters has worked for Ministerie Van Infrastructuur En Waterstaat and Wageningen University & Research.

How can I contact John Wolters?

You can use AeroLeads to view verified contact signals for John Wolters at Ministerie van Infrastructuur en Waterstaat, including work email, phone, and LinkedIn data when available.

What schools did John Wolters attend?

John Wolters holds Faculty Of Informatics And Information Science, Informatics, Bsc from De Haagse Hogeschool / The Hague University Of Applied Sciences.

What skills is John Wolters known for?

John Wolters is listed with skills including Visualworks Smalltalk Software Engineer and Gemstone Database Administrator.

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