Jan 2018 – Jul 2021 · 3 yrs 6 mos · Groningen Area, Netherlands

• Research and development & project manager of new features for a SaaS platform helping companies with the European privacy law (GDRP), while conforming to security/OWASP requirements & privacy/PII regulation & policies.
• Features are as following:
• https://www.avgcloudregister.nl/avg-features/

Feb 2017 – Present · 9 yrs 1 mo · Groningen, Netherlands

• As a recognized Google Developer Expert and international speaker on web performance, I've helped hundreds of clients—primarily enterprise brands and agencies—improve their Core Web Vitals, user experience, and conversion rates.
• How I can help:
• When you're struggling with slow load times, poor user experience, or performance-related SEO issues, I provide practical solutions that directly impact your business metrics.
• Services:
• ➡️ Quick brainpick sessions: Targeted advice for your most pressing performance issues
• ➡️ Quick-win audits: Identifying immediate performance opportunities with highest ROI
• ➡️ Workshops and training: For both technical teams (developers) and SEO specialists
• ➡️ Virtual and in-house sessions: Flexible delivery to suit your team's needs
• ➡️Core Web Vitals optimization: Resolving specific issues like layout shifts (CLS)
• ➡️Technical consulting: Translating performance metrics into actionable improvements
• Why this matters:
• Modern sites face performance challenges beyond network speed—JavaScript parsing, resource competition, and real-world conditions all impact user experience. Lab tests like Lighthouse can miss these real-user issues.
• Industries served: Ecommerce platforms, digital agencies, public sector, enterprise brands
• SEO sitespeed specialist
• Additional skillset includes: a11y ♿ sustainability 🌍 webprivacy 🔒 -security

Jun 2014 – Oct 2015 · 1 yr 4 mos · Groningen

• For a new national website of greeting cards, we worked in a team of developers, where visitors could create or edit greeting cards.
• My task was to develop the card-saving process, and the process from HTML/SVG to printable PDF documents (using wkhtmltopdf), as well as maintenance to the backend tool/manager.
• Before pushing to wkhtmltopdf, filters (sepia, vintage or grayscale) and (trim)boxes had to be added, which were sent to printing companies using FTP and webservices.

Apr 2013 – Apr 2015 · 2 yrs · Rotterdam

• For this coal and ore transfer company established in the harbour of Rotterdam, I developed a new authorized and structurized intranet based on their older version, containing modules for automated work schedules and holiday-exceptions, desktop charts based on company data, employees-, telephone- documents- and boatlists, rotating daymenu's and newssection and automated task for importing/updating employees data.

Sep 2011 – Jan 2018 · 6 yrs 4 mos

• For the SalesForce department, we developed an internal authorized web application for managers, team leaders and other employees in which one can keep track of kilometers, working days/hours, sales and bonusses, creating and sending PDF summaries to all employees on approval of filled in data. Also exports can be made for administrative purposes, such as employment agencies but also for own administrative purposes.
• We've also built their website, eventually becoming part of Vattenfall. After doing a rebrand of the website, we achieved optimal results.

Mar 2010 – Jul 2010 · 4 mos · Groningen

• Back in Groningen, I was asked to configure and develop new SOAP/REST applications for external webservices for the national vacancy-database InGoedeBanen.nl.

May 2009 – Oct 2009 · 5 mos · Utrecht

• In this period, while living in Haarlem, I did my graduation project at the Accessibility Foundation in Utrecht. Accessibility Foundation examins and develops accessible applications, where I was developing an accessible video caption editor, with which one can create captions/subtitles while the video is playing.
• http://www.nu.nl/internet/2121368/dienst-maakt-online-video-toegankelijk-blinden.html

Oct 2008 – Dec 2008 · 2 mos · Groningen

• While working on location at DMM Websolutions BV in Groningen, I created several, mainly vacancy websites using the Typo3 CMS.

Feb 2008 – Nov 2008 · 9 mos

• Development of in internal ticket/helpdesk application for vessels having satellite problems or need satellite installation, keeping track of turnaround times needed for solving requests/tickets.

Sep 2007 – Feb 2008 · 5 mos · Eindhoven

• While doing my internship at Jeroen.com in Eindhoven, I maintained several websites, taking care of the SEO for websites and also build a well-maintaining dictionary-like websites to raise findability of the website.

Jun 2007 – Aug 2007 · 2 mos · Coevorden

• I worked on location in Coevorden, The Netherlands, on freelance basis developing several websites based on a CMS created by MultiMove

Jan 2005 – Present · 21 yrs 2 mos

• 👉 As CMS supplier towards Blue 2 Blond, I am responsible for (pagespeed/accessibility/technical SEO) R&D;
• 👉 I am also tightly involved as lead developer and in-house developer training towards Blue 2 Blond (and other agencies as well);
• 👉 Also conducting audits on new website and finalizing specific customer requests.
• Blue 2 Blond is developing accessible, sustainable, search engine optimized and performance optimal B2B websites, obeying to security requirements and privacy regulations and policies and reducing CO2-emission at the same time.
• Websites built by Blue 2 Blond keep working when JS can't be downloaded or has been disabled by the user (for example, for privacy/security reasons). By listening to user preferences (contrasting, motion, internetspeed and saveData/liteMode settings), websites will adapt to real user preferences or environment to guarantee equal user experience and improve engagement and conversion.