2019 - 2021 Havenbedrijf Rotterdam - Northrop Grumman Sperry Marine
Stefan has worked at the Port of Rotterdam. The Port of Rotterdam has a Linux environment for its cameras and radars. This Linux infrastructure was monitored with scripts and software. The software was written in bash, python and ansi C. There were some 21 scripts. Stefan has changed and managed the software.
2017 - 2019 Sogeti
Stefan has worked on 4 projects in his Sogeti time. At hetCAK he worked with the anonymization tool from DatProf. He mainly made SQL scripts, but he also worked with Microsoft C#. Stefan did C# at Ictu. At Philips and Volkswagen he used Jmeter for a performance test.
2015 - 2017 Centric
Centric is a large ICT company. The department where Stefan worked was called Key2DocumentCreatie. This department creates software that produces documents. Documents like doc, pdf, html and rtf. Information out of a database was placed on a letter template. This was done by a internal web server written in C++. The internal web server was called BriefServer. The BriefServer is a Microsoft service that can accept commands from the network. Its code is based on Microsoft Casablanca and is written in C ++. Stefan has built in new functionality and he has solved bugs. For organizing the templates, Stefan has worked on a C# program that creates and customizes these templates. Stefan has also worked on a C # program that checks and reorganizes the rtf's.
2014 - 2015 Vigilance
Vigilance is a defence company with solutions and projects in video processing. Information is gathered from video streams and processed for several purposes. The idea was to create a tool that could display 10 video streams with data and display the data on an open source map. Isa stands for information situation awareness.
2013 - 2014 CGI
Stefan has done some in house projects during this period. He has made some CUDA C++ code to get familiar with the new parallel programming of NVIDIA. He has worked with the LinkenId api with C# 4.5 and connected the result with SQL to a access database. Stefan has made a program in C# 4.5 to investigate the difference between the Microsoft 2010 sql database and the Microsoft 2012 sql database. Stefan has made some webpages with JavaScript and JQuery. He has worked two months on simulation software in C++. Stefan has done a performance test with Jmeter
2007 - 2013 Ymor
Stefan Boersen was responsible for the client side of a botnet. The client side of the botnet was called YmorAgent. The software was developed in-house by Stefan in Microsoft C++ and has replaced Hp SiteScope. Stefan developed the web server and the scripts used to monitor the systems. During this project Stefan overcame challenges with performance with regards to sockets and web services. The software reports about the stability of customer systems. Stefan has made the software with the requested stability and has done this under strict deadlines. The software is used by some 40 consultants.
Monitoring system software and performance testing is done with scripts. Ymor is doing this for several customers. Stefan has made several scripts in different languages. Most of the scripting was done with Hp Loadrunner. Nearly all of the scripts were in ANSI C. Stefan Boersen has been Hp loadrunner performance tester at ING for one year.
2005 - 2007 Fenestrae
The main product of Fenestrae is the Fenestrae communication server. The Fenestrae communication server sends out fax�s. The software is completely written in C++. During this project Stefan was responsible for the maintenance and new developments of the application in C#.
2003 - 2005 Kpn conferencing
KPN conferencing has a website for booking telephone conferences. This website was only accessible by an operator. Opgui stands for the OPerator Graphical User Interface. Stefan has written this website. The website was written in Microsoft C# and the data were stored in a Microsoft SQL database.
1999 - 2003 CGI
Switch was the stock option exchange system of Euronext before the takeover of Liffe. Stefan has made Microsoft C++ code used by QARun. QARun is a script runner from the company Compuware. Stefan was part of a team of 14 testers. The testers were responsible for the functionality inside the scripts. The tests were set up according to the CGI testframe model. There were action- or keywords that could be used and reused in Microsoft excel spreadsheets. The Excel spreadsheets were using macros and Microsoft Visual Basic VB.
1997 - 1999 Cuperus Consultants - Kpn Tekstberichten
Kpn text messaging software is a product that works through analog communication with analog modems. The Internet was not yet common. Stefan Boersen has made Kpn text messaging software 4.0. The C++ software works through a RS232 port. The software could set bytes on a port. The software worked with 8 types of telephone services on 8 different telephone numbers. You must think of beepers, buzzers, travel text and sms services centers. The software was available without costs from the Primafoon shop of KPN. He went to the KPN store to pick up his own software.