Bas Vredeling

Web Developer


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+31 (0)6 41437554


Commited to creating elegant web sites and applications. Advocate of open source technology as key to empowering web users. Dedicated Drupal developer.

Working with Drupal since version 4. Professionally developing Drupal sites since 2007. Member of the Drupal Association. Currently mainly working on D8 projects.


  • Bas Vredeling
  • Amsterdam
  • The Netherlands
  • 1978
  • Dutch, English (fluent), German, French, Spanish (decent)
  • B


Web Development

Broad experience in creating plain websites, communities, ecommerce, publishing platforms, aggregators.

System Architecture

Skilled in system architecture and system integration for fully scalable platforms.

Front-end Development

Seasoned front-end developer with a keen eye for design and accessibility.


Can perform stack and front-end performance analysis and optimisations.


Can give security advice and do audits on application security hardening.

Continuous integration

Experience in setting up continuous integration and continuous delivery pipelines.


Extension Development

Development of tailor-made modules, plugins and themes. Elegant implementation of community projects.

Decoupling & Distribution

Development of complex multi-site, multi-domain solutions. Headless and service based architecture.


Coaching and training junior developers in development methodology, tooling, team strategies, SCRUM and coding standards.


  • HTML
  • CSS
  • Javascript, jQuery
  • PHP
  • MySQL
  • Docker
  • CI, CD
  • Git, SVN
  • Solr
  • Services, APIs
  • Varnish
  • APC, Redis, Memcache


Code Culture

Founder / Owner

2004 - present

Self-employed / freelance web developer. Predominantly Drupal CMS development, template building, extension development, training and consultancy. Previously also Joomla and Magento development.

Universiteit van Amsterdam

Electronic Learning Environment Administrator

2001 - 2005

Support of education with new media in both the classroom and online. System administrator of the electronic learning environment Blackboard. Assistance of both lecturers and students in new media projects and initiatives.


University of Amsterdam

Cultural Anthropology and Sociology of Non-Western Societies (1998-2004)

Technical University Delft

Geodetic Engineering (1996-1998)

Dalton Scholengemeenschap, Voorburg

VWO / Gymnasium (1994-1996)

St. Oelbert Gymnasium, Oosterhout

Gymnasium (1990-1994)

Selected Projects


Internet agency

2018 - 2021

Freelance Drupal back-end developer. We worked in small agile teams to create several client projects. Most notably websites for the Dutch Water Sector, Madurodam, FME, Synerkri and others.

RNW Media



RNW Media is an NGO that spawned from the Dutch broadcasting world service (Wereldomroep). As a dedicated Drupal developer I supported their programme of promoting topics like equal rights, civil liberties, free press, by building various websites all over the world. These websites have millions of views each year and published content in many languages and locales.

Dutch Chamber of Commerce

Connecting Entrepreneurs

2018 - 2020

Front-end restructuring and back-end development for nlgroeit, a platform to connect successful business owners with one another in mentor / mentee roles.


Digital Logistics

2015 - 2019

TransFollow develops various digital products for logistics services. We created a portal displaying essential information when loading and shipping dangerous goods by road. For their main electronic waybill product we developed a responsive product website.


Marketplace for heavy machinery


Online verticals multinational OLX started a global marketplace for heavy machinery in 2017. We grew this platform to be market leading in volume within 6 months of launch, containing about half a million ads in multiple countries.


Developer portal


Dutch mail and parcel distributor PostNL has a wide range of APIs that developers can use for parcel tracking, postal code lookups, and much more. For reference to developers we built a portal containing extensive api documentation and a sandboxing tool to test api functionality.



2012- 2016

The company site we inherited was built by inexperienced developers. We restored maintainability by unhacking the code, setting up a proper multi-site environment, implementing multilingual modules and workflow. Other assignments included updating the themes to a new layout, migrating content and supporting their in-house developers.


Multiple websites and training sessions.

2007 - 2016

As a freelancing associate of 2Value I've been employed in many roles: developer, consultant, trainer and tester, to name a few. I've built various implementations of their company website and several internal applications. Among these are a webshop, a wiki, a payment and accounting system and a project management platform.

I've have been training of both Drupal and Joomla developers in using proper development tools and strategies such as: Git, Subversion, DTAP. To get more Drupal expertise within 2Value's developer network I've set up a Drupal junior developer course spanning a week of full time training and a month of applied mentoring.

Dutch Provinces

Geo-information platforms

2014 - 2016

Audit and development of two maps platforms of the Dutch provincial governments to publish geo-information concerning the location and details of both industrial zones and water quality.


Corporate website


At identify firm Total Active Media we’ve implemented a completely new design for hosting service provider Proserve. My role involved tasks like front-end development, website configuration, responsive site setup. This website was featured on Adobe’s as a showcase in early 2017.


  • Dutch Government

    Prototype of the Dutch Tax Department pre-filled tax return forms

  • McDonalds

    HTML mail campaign

  • Rabobank

    Testing and fixing the new corporate layout

  • Equens

    Converting their website to a new HTML theme after a merger

  • Dutch National Archive

    Adapting their website to a new corporate identity

  • Alternatief voor Vakbond

    Website for a new dutch labour union

  • University of Amsterdam

    Electronic Learning Environment administrator

  • University of Amsterdam

    Set up and training for the first university wide CMS

  • Eden Design (Eden Spiekermann)

    Various frontend development and accessibility jobs