What is Code Green?

Code Green is a young and innovative Internet company, dedicated to the development of novel web solutions for the world of Golf. As such, we are solely focused on developing and maintaining our in-house projects, Golf4Holland and Golfwebclub, which are described in more detail below.

The success generated by Golf4Holland, which is now the 5th largest golf club in the Netherlands, lead to the founding of Golfwebclub project, expecting to reproduce this experience on a global scale.

To know more about us technically, you can view the international third party projects we worked on previously in our portfolio.

**We are currently hiring! Check out our vacancies.**

Current projects


Golfwebclub is an innovative collaboration of various professional service platforms and web community features, intended for everyone who relates to the world of golf. The main purpose is to make the game of golf an easy-to-access, enjoyable, and remarkable experience.


Golf4holland is a virtual Dutch golf club, officially associated with the Netherlands Golf Federation. With over 7500 members Golf4Holland is one of the largest golf clubs in the Netherlands. Code Green both develops and maintains all the required systems and infrastructure needed to run this golf club effectively.

Who we are

Maarten Van Dam Maarten van Dam
General Manager

After years of working for KLM, Maarten became an entrepreneur in the golf world and organized various events in Holland. He started Golf4Holland in 2003. Now looking forward to the expansion of this successful initiative, he has gathered a team to work on Golfwebclub. That is how Code Green was born. Enthousiastic and visionary, he explores social media as a playground.

Jan Willem Korver Jan Willem Korver
IT Consultant

JW is a brilliant, multi-talented individual with excellent development abilities, Works across different applications, frameworks and environments. Has a vast experience spanning more than 25 years in the business - and is in touch with the latest developments.

Hsiao, Wei-Yen Hsiao, Wei-Yen
Marketing and Sales Manager

An experienced entrepreneur in international trading business, Wei-Yen holds 2 MBA degrees in International Business and Marketing. Wei-Yen joined the company in 2010, and implemented the global structure of the Golfwebclub project. He is now focusing on the development of the Asian markets.

Chen, Chia-Yang Chen, Chia-Yang
Ruby on Rails Engineer

Chia-Yang has many experiences on JSP, PHP, ASP and Ruby on Rails, and was hired by the number one Ruby on Rails consulting firm in Taiwan. Joining Code Green in 2014 as a Ruby on Rails Engineer, he adds his skills to the agile team, participate in Rails developments

Huang, Chi-Yung Huang, Chi-Yung
Ruby on Rails Engineer

Chi-Yung was graduated from business college but became a Rails developer since he had a lot of fun with coding, which fullfilled the desire of making things by getting his hands dirty.

Gerben Meyer Gerben Meyer
IT Consultant

After obtaining a Master Degree in Computing Science and a Ph.D. in Economics and Business, Gerben decided not to become a researcher for life. His interests lean towards real-world business action and internet projects, as proven by his various projects involvements and responsibilities. He joined Code Green in January 2013, focusing on both business strategy and software engineering, and promoting agile development for building software solutions.

Arthur Kater Arthur Kater
IT Consultant

Over 25 years of experience in soft and hardware development with emphasis on innovation and usability. Owner of PlazaLOGIC, a Taiwan based IT consultancy firm specialized in touch screen solutions for consumer and vertical markets with international clients including Advantech and Microsoft. Founder of Docceo, a hospitality solution developer for software and hardware. Patent holder of touch screen software related technologies.

Cases we worked on

Golf4Holland jan 2012 - present
Design and development of the v2 of the website and backend with ruby on rails 3. Hosting, maintenance and evolution. Most of the features are accessible only for registered members and for admin.
Rails3 - Devops - Sysadmin - Passenger - Resque
Golfwebclub jan 2012 - present
Design and development of the global golfers network based on Golf4holland model. Still under heavy preparation, not accessible yet.
Rails4 - Ember.js - API
Klassenfilm mar 2012
Coding and templates integration in collaboration with Wequest (Dutch company).
Rails3 - jQuery - Spree
Bluefox aug 2012 - apr 2013
Design of an information feed engine, based on a multi-agent architecture, using daemons, handmade servers, background and parallel processing.
Ruby - Rails3 - Spree - Distributed - Agents - API
Wat Weet Nederland dec 2012 - mar 2013
Design of the engine managing the game played on the TV show, including backend, frontend js game mechanics, design integration.
Rails3 - ActiveAdmin - jQuery
Ernst&Young apr 2012
Replication of the existing flash-based UK HR site to html static pages powered by only javascript and json data files. Including admin backend for content management and production of new static releases.
Rails3 - Javascript
Green Ruby News feb - jul 2013
Publication of a weekly newsletter about ruby.
Mailchimp - writing
Biochek may 2012 - present
Technical consulting and collaborative process management. Helping the company to improve their internal workflow with adhoc tools and processes.
Consulting - Groupware
Exclusive Hotels feb - may 2012
Consulting mission for the evolution of Exclusive Hotels data management infrastructure.
Consulting - Architecture - Data Flow
Docceo dec 2012 - mar 2013
Integration of an existing design for a tablet application based on webview chrome engine, relying heavily on javascript for its interface (unreleased top-secret project).
Integration - tablet - Javascript - Ender.js

Currently open positions

Web Developer

If you are looking for an opportunity to take part in a global scale startup project, and longing to make a difference, then we might have a position for you.

CODE GREEN is a startup company solely dedicated to the development of novel web solutions for the world of Golf. In order to further strengthen our team, we are currently looking for a skilled web developer.

Do you have experience with MVC frameworks (preferably Ruby on Rails), JavaScript, SQL, and front-end coding? Are you a team player with strong problem solving skills and with fluency in English? We offer you a challenging job in open and informal working environment, with a decent salary and various opportunities to develop yourself.

If you are interested in this position, please send your resume to Moreover, feel free to send us an email if you have any questions regarding this position.