Career History Henk Jan, SUMit

SUMit logo
(www.sum-it.nl)
2006
2005
  • Apr - Aug: Analysis, Design, OO PHP, MySQL for meat trade in Spain.
    OO PHP, MySQL for multilinguale version of woodwing.com.
  • Gave several trainings in Roster Design and Google Ranking.
  • Jan - Feb: Extend SUMit Roster software while travelling in Malaysia and Australia.
Dec 2002 - Dec 2004

Java

  • Aug - Dec: Java, Logistic planning module for Dutch VCC Group, designed an algortim for multiple travelling salesman, interface with personnel management system.
  • Jun - Aug: OO consultant, trainer, paper prototyping, DB design, class design, OO software development at esperantoxl.nl: OO PHP in 3-tier architecture, Pear DB, Pear HTML, SQL, Postgres DB. Bitter EJB
  • May - Jun: J2EE cursus at TriOpSys, stateful & stateless session beans, entity beans, transaction handling, deployment. Studied Bitter EJB.
  • Apr: Gave OO training to Java programmers to be at TriOpSys.
  • Mentor in Web design, usability, HTML, CSS, SQL, MySQL, PHP, Java for apprentice of the Grafical Lyceum Rotterdam.
  • Standard roster software in cooperation with 4uIT
  • OO PHP consultant for Telcom order system PHP KPN MxFlex, teleworking.
  • Designed and developed revolutionary Dutch real estate website using OO PHP, with a new usability concept: zoom mechanism for websites with large quantities of data. Implemented graphical design using advanced CSS.
  • Java: wrote a HTML -> Quark Express converter for Nivra in cooperatiogn with Comwave. Gave OO training to Comwave: OO analysis, UML class diagrams, OOP using Java.
  • Gave course to an international chemical industry: Design Repeating Roster Patterns, with several versions:
    • for 2 shifts,
    • with different workload in week and weekenddays,
    • taking into account employibility, different job skills and employee wishes such as parential leave.
  • Wrote Usability rapport for the job website of www.robberts.nl.
  • Wrote Google Cookbook, how to maximise Google ranking.
Oct - Dec 2002
Dec 2001 - Sep 2002

Java

Multi lingual Web Project Planning Tool, with generated graphics for deadline control, in object oriented PHP and MySQL for Comwave.

Martinair (martinair.com), Quality and Procedure department: Redacted an interpolation algorithm, used for fuel distribution in aircraft.

Database design for content management system. Dead link checker in Java. Establish strategic alliances for rule based roster software.

Jul - Nov 2001

Java

Web based duty roster planning system for Vos Air Services at Schiphol, Amsterdam airport.

A fuzzy expert system (Java applet, Java beans, JBuilder) distributes off days and assigns employees to flights. The Java applet uses

  • Fuzzy Logic and SUMit's rule base technology.
  • optimisation algorithms
  • constraint propagation
Developed duty roster display and advanced data entry screens (HTML, CSS) with PHP on a MySQL database.
Apr - Jul 2001

Smalltalk

ADP ADP, Smalltalk, Develop XML interface PI System - Employee Self Service web application. Wrote an XML parser in Smalltalk from scratch. Designed a leave request module (adp.nl/essdemo...).
Sep 2000 - Apr 2001

Java

KPNQwest.com Developed a web version of the CRM system Clarify (nortelnetworks.com/...) via Oxford & Associates (oxfordcorp.com) for KPNQwest (kpnqwest.com).

OO modelling of business objects, programming of Java beans (J-Builder) in the OO layer of a 3 tier Java architecture with servlets, JSP, HTML & CSS. Trained software developers in OO concepts, OO software development and modelling.

Analysis and Web Design of a planning tool for the Implementation Management Department.

Jul - Aug 2000
Apr - Jul 2000

Java

E-commerce project via Devote (www.devote.nl/en) for OHRA (www.ohra.nl) (a Dutch insurance company):
  • OO analysis, Web UI design, Usability testing
  • JAVA beans, OOP Java Servlet, 3 tier architecture, generate HTML using JSP, J-Builder.
  • Web-enabled buying and selling of stocks of OHRA investment funds
Apr 2000 Wrote a course for Amphité (www.amphite.nl, a Dutch IT company): Roster Planning software using the Hungarian algorithm for matrix optimisation.
Dec 1999 - Mar 2000

Smalltalk

ADP, Perman II version 2.3:
  • Trained a new Smalltalk programmer.
  • Wrote a manual, in diary form, for users to write reports using Perman II's historical database.
  • Analysis of a inter system link to (www.viaprisma.nl) for medical leave data, and insurance statements.
  • Wrote an E-Commerce demo in HTML for reporting medical leaves.
  • OO Analysis, RAD, Smalltalk development using Object Studio.
1999

Java

Smalltalk

  • Developed a course for Comwave: "E-Commerce with data driven web sites". A participant learns to generate HTML using PHP scripts, SQL and create a table in a MySQL database.
  • Pattern in stock values Extended the SUMit web site with a search function, a Java applet for optimal planning of supply and demand and another Java applet for pattern recognition in chaotic data series such as stock values.
  • GUI design and Smalltalk for ADP Perman 2.2, the most flexible Personnel management system from ADP, the leading American company in HR systems and salary slips. Designed a web design course from scratch. Gave course several times.
  • Wrote a course "Write your own homepage using HTML", from scratch. Gave the course several times.
1998-1999

Java

Tool for flexible Business rules Malaysia, developed www.sum-it.nl from scratch, the SUMit web site. Restyled rule tool for flexible business rules using JAVA.
1998

Smalltalk

ADP, Perman version 2.1. Totally redesigned the import function, one of the most complex modules. Did RAD, OO Analysis, prototyping and Smalltalk. Trained a programmer in OO principles, Smalltalk, SQL, Oracle database and SQL Server. Developed an easy-to-use knowledge base for customer service centre.
1997-1998 Nationale Nederlanden Was team leader for a Business Area Analysis at 'Nationale Nederlanden', the leading Dutch insurance company. Led a group of 10 in an analysis project using Cool:Gen.
1997

Smalltalk

Founded SUMit in the Netherlands.

Worked for ADP Netherlands on Perman 2.0. Performed GUI design and Rapid Application Development using Object Studio Smalltalk. Developed a database check tool (Oracle database & SQL Server), wizards for system customisation, and an flexible interface to ArboNed for medical leave data.