Koen Tjoa

Koen Tjoa Email and Phone Number

Owner and ZZP-er @ Ingenieursbureau Tjoa
Koen Tjoa's Location
Zeist, Utrecht, Netherlands, Netherlands
Koen Tjoa's Contact Details

Koen Tjoa work email

Koen Tjoa personal email

n/a
About Koen Tjoa

Independent entrepreneur working as an IT consultant, application developer and database designer in several kinds of business and (food) industry.Specialties: Database development, Windows application development, Clarion for Windows, MS SQL Server, Microsoft Power BI, Microsoft PowerApps.

Koen Tjoa's Current Company Details
Ingenieursbureau Tjoa

Ingenieursbureau Tjoa

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Owner and ZZP-er
None
Koen Tjoa Work Experience Details
  • Ingenieursbureau Tjoa
    Owner And Zzp-Er
    Ingenieursbureau Tjoa
  • Ingenieursbureau Tjoa
    Owner/Zzp-Er
    Ingenieursbureau Tjoa Oct 1999 - Present
    Zeist
    IT consulting and Clarion application development (applications for Windows), database design, Microsoft PowerBI.
    View
  • Eco2Clean B.V.
    Development Hims (Hygiene Information Management System)
    Eco2Clean B.V. Mar 2008 - Present
    Dit is een groep van applicaties bestaande uit onder andere een desktopapplicatie en een API-server voor het beheer van schoonmaakactiviteiten in de Food industrie.
    View
  • Tjoa Photography
    Website Designer
    Tjoa Photography Apr 2015 - Nov 2015
    A photo website for my brother which is designed to have as little distraction as possible.(http://www.tjoa.photography)
  • Arthur Interim Management
    It Consultant
    Arthur Interim Management Aug 2006 - Jul 2008
    Rotterdam/Berkenwoude
    IT support for the Arthur management professionals network. Setup Sharepoint MS Exchange and website.
  • Rbk Group
    It Consultant
    Rbk Group Dec 2000 - May 2005
    Deventer
    Advice / sparring partner of the director software development for the design of a new version of FOBIS, an application for the management of (logistical) processes in the meat and fish processing industry. System Analyst, formulation of definitions and design data model.
    View
  • Lease Management Services B.V.
    Systeembeheerder-Programmeur
    Lease Management Services B.V. Apr 1996 - Sep 1999
    Baarn
    Development of financial software for the small-ticket vendor lease (in Clarion for Windows). Technical and functional design. Manage program standards. Directing other programmers. System engineering (Novell 3.12/4.11 and GoupWare). Purchase hard- and software. IT-specialist.
  • Programmeur, Rgl International B.V. (Later Cal Consult)
    Programmeur
    Programmeur, Rgl International B.V. (Later Cal Consult) Aug 1994 - Apr 1996
    Ede
    Junior programmer for two logistic applications build in Uniface. Customer support.

Koen Tjoa Skills

Databases Software Development Sql Microsoft Sql Server Windows Uml Database Design Lindy Hop Clarion Business Analysis Visual Studio Xml Html5 Javascript Css Jquery

Koen Tjoa Education Details

  • Schumann Akademie, Utrecht
    Schumann Akademie, Utrecht
    Lichte Muziek
  • Hogeschool Utrecht
    Hogeschool Utrecht
    Hts Algemene Operationele Technologie
    View
  • Rsg Schoonoord, Zeist
    Rsg Schoonoord, Zeist
    High School
  • Sint-Joris College, Eindhoven
    Sint-Joris College, Eindhoven
    High School
  • Eikenstein, Eindhoven
    Eikenstein, Eindhoven
    Elementary School
  • Lucasschool, Tilburg
    Lucasschool, Tilburg
    Elementary School

Frequently Asked Questions about Koen Tjoa

What company does Koen Tjoa work for?

Koen Tjoa works for Ingenieursbureau Tjoa

What is Koen Tjoa's role at the current company?

Koen Tjoa's current role is Owner and ZZP-er.

What is Koen Tjoa's email address?

Koen Tjoa's email address is fa****@****tjoa.nl

What schools did Koen Tjoa attend?

Koen Tjoa attended Schumann Akademie, Utrecht, Hogeschool Utrecht, Rsg Schoonoord, Zeist, Sint-Joris College, Eindhoven, Eikenstein, Eindhoven, Lucasschool, Tilburg.

What are some of Koen Tjoa's interests?

Koen Tjoa has interest in Motorcycling, Blues, Sing, Dancing, Music, Rock 'n' Roll/boogie Woogie.

What skills is Koen Tjoa known for?

Koen Tjoa has skills like Databases, Software Development, Sql, Microsoft Sql Server, Windows, Uml, Database Design, Lindy Hop, Clarion, Business Analysis, Visual Studio, Xml.

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