Certified WordPress Expert Developer since May 2016
Certified WordPress Expert Developer since May 2015


Hi there! My name is Marcel and I’ve been developing for WordPress for over 10 years now, web development for more than 20 and native mobile development for 5. While currently based in the beautiful city of Porto, Portugal, I’ve accumulated a large experience in WooCommerce and e-commerce related websites in general, by developing custom plugins, adjusting themes, implementing full end to end online stores and building web-based and native mobile apps. I’m also very familiar with reporting, inventory management, mailing lists, high-performant e-commerce websites, importing and exporting data from and to APIs, and general e-commerce consultancy.

I’m fluent in English, German, Portuguese, and Spanish, I am always available through Skype and have a true commitment to every project I get into.

My goal is to work on solid, well-thought projects, and build long-term relationships. I want my clients to feel supported and confident about their projects and the technology behind it.


These are some of the customizations I’ve made while working with WordPress and WooCommerce:

  • All sorts of Gravity Forms and Formidable customizations;
  • Custom payment and shipping methods in WooCommerce;
  • Implementation of membership solutions;
  • External APIs integrations;
  • Implementation of cryptocurrencies as payment methods;
  • Bulk import/export data to/from WordPress and WooCommerce
  • WooCommerce Bookings integrations and customizations
  • ERP integrations
  • Site optimizations and bug fixes
Some Numbers

Additional information

As far as my work at Codeable is concerned, 80% of my new clients return for additional tasks. All my clients have reviewed me with 5 starts and their testimonials can be read further down this page.
I’ve been working on different products of my own, some of them sold to bigger companies, such as iThemes and Liquidweb. I also do a lot of consulting work for bigger e-commerce is driven business locally and internationally.
As a hobby, I like to do photography, shoot videos, fly around with my drone and play music (drums, guitar, bass guitar, and keyboards). I’m also involved with the local WordPress community where I gave 4 talks for the last 5 years at WordCamp Porto and helped organized 2018’s edition.

Project Portfolio


Here are some examples of projects I’ve worked for:

https://greatiamwear.com – complete e-commerce solution based on WooCommerce
https://crustclub.com – payment gateway integration, club membership and WooCommerce customization
https://marigoldsandonions.com – complete e-commerce solution based on WooCommerce
http://snughughome.com – complete e-commerce solution based on WooCommerce
http://agroaguiar.pt – custom seller’s backoffice dashboard solution
uTrus – creation of a crypto-payment mehod for WooCommerce


Here are some examples of apps that I’ve built:
Águas de Gaia
iThemes Sales Accelerator
WP Camps
Happy – Health Awareness Prevention

I’m 100% committed to every task I take, here are some of the client’s feedback of projects I’ve worked on.

Customer reviews

Marcel Schmitz 2019-07-31T13:48:55Z 5
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From the beginning on, when Marcel helped defining what exactly made the most sense to be done, working with him was absolutely great. He quickly found affordable solutions for all of my WooCommerce issues, responded very timely, and came up with smart ideas while he was implementing that made the result better than expected. I can wholeheartedly recommend him. Thanks, Marcel!

Jens Misera
Marcel Schmitz 2019-06-19T12:54:22Z 5
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Marcel was extremely professional and knowledgeable. HIs communication around scoping of tasks and attention to detail was fantastic and as a UX designer I am pretty picky. Highly recommended. I would work with him again in a heartbeat

shelley armstrong
Marcel Schmitz 2019-10-02T16:11:29Z 4
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Rick Smith
Marcel Schmitz 2019-10-02T15:54:51Z 5
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Eric Postlack
Marcel Schmitz 2019-10-01T16:23:14Z 5
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Brian Smith
Marcel Schmitz 2019-09-17T23:09:39Z 5
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Troy Kerr
Marcel Schmitz 2019-08-26T13:32:35Z 5
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Marcel is very knowledgable and keeps the client in the loop. Even after delivery he still helps with questions. Will hire him any day!

Travis Kempers
Marcel Schmitz 2019-08-20T13:29:54Z 5
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Marcel did a great job, there were a couple parties involved and things didn't always move along as quickly as they should. Marcel was patient and delivered the product as promised.

Corey Hyde
Marcel Schmitz 2019-08-07T22:05:39Z 5
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Sascha Bosio
Marcel Schmitz 2019-08-06T15:54:06Z 5
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Marcel was very patient with our requests and took care of the changes in a timely manner. Thank you for your work, Marcel!

Megan Stout
Marcel Schmitz 2019-08-06T06:44:36Z 5
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Thank you! I will keep you posted about the other request.

Owen DeLeon
Marcel Schmitz 2019-08-05T15:11:25Z 5
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Jan Christiansen
Marcel Schmitz 2019-07-19T18:37:42Z 5
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Marcel is an excellent communicator. Our project was not simple as the client did not want to give out third party access. This required Marcel to coordinate with other developers. All this happen in a timely and professional way.

Bradley Weber
Marcel Schmitz 2019-07-17T16:00:57Z 5
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Marcel responded to questions, was very clear about the tasks, and finished ahead of schedule. Will use again.

Kevin Hejduk
Marcel Schmitz 2019-07-17T14:38:39Z 5
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Benjamin Perry