As a passionate web developer with over 12 years of experience, I help businesses and agencies create tailored web solutions. My focus is on WordPress and Shopify, always keeping up with the latest technologies and trends to deliver optimal results. My strengths include reliability, empathy, and clear communication, ensuring a smooth and successful collaboration. If you’re looking for an experienced freelance developer for your next project, feel free to check out my portfolio and get in touch. I look forward to hearing from you!

Matthias Seidel

As a passionate web developer with over 12 years of experience, I help businesses and agencies create tailored web solutions. My focus is on WordPress and Shopify, always keeping up with the latest technologies and trends to deliver optimal results. My strengths include reliability, empathy, and clear communication, ensuring a smooth and successful collaboration. If you’re looking for an experienced freelance developer for your next project, feel free to check out my portfolio and get in touch. I look forward to hearing from you!

Available to hire

As a passionate web developer with over 12 years of experience, I help businesses and agencies create tailored web solutions. My focus is on WordPress and Shopify, always keeping up with the latest technologies and trends to deliver optimal results. My strengths include reliability, empathy, and clear communication, ensuring a smooth and successful collaboration.

If you’re looking for an experienced freelance developer for your next project, feel free to check out my portfolio and get in touch. I look forward to hearing from you!

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more

Language

German
Fluent
English
Advanced
French
Beginner
Spanish; Castilian
Beginner
Japanese
Beginner

Work Experience

Program Coordinator, DTP at TUI Cruises Mein Schiff 1, Mittelmeer & Karibik
January 31, 2013 - July 9, 2025
Coordinated various programming and desktop publishing tasks related to TUI Cruises' ship projects focusing on the Mediterranean and Caribbean regions.
Freier Programmierer & Designer at Doryo, Berlin
October 1, 2011 - Present
Provided freelance programming and design services including web and media development projects.
Senior Designer & Frontend Developer at Fox Interactive Media Germany GmbH / MySpace.com
April 30, 2011 - July 9, 2025
Led design and frontend development initiatives, enhancing user interfaces and improving user experience on MySpace Germany platform.
Programmierer at Digiden GmbH, Berlin
June 30, 2007 - July 9, 2025
Developed software and programming solutions aligned with company objectives and client needs.
Musiker, Komponist at Team Blender GbR, Berlin
June 30, 2007 - July 9, 2025
Created and composed music as a professional musician and composer.
Database & Playout Administrator at The Voice TV, London
February 28, 2006 - July 9, 2025
Managed databases and playout systems, ensuring smooth broadcast operations.
Softwaretester at Magix, Berlin
July 31, 2005 - July 9, 2025
Tested software products to identify bugs and improve quality.
Praktikant, Programmierung at opsm medianetworks, Berlin
March 31, 2004 - July 9, 2025
Internship focused on programming tasks and software development.
Programmierer at Virtuelle Fachhochschule, Berlin
March 31, 2004 - July 9, 2025
Programming role involved in e-learning platform development and maintenance.
Programmierer, Designer at Technik und Medien, Berlin
April 30, 2003 - July 9, 2025
Combined programming and design work for media-related projects.
Praktikant, Studiobau at Audio Sonic, Berlin
March 31, 2000 - July 9, 2025
Assisted in studio construction and setup.
Schnittassistent & Tonassistent, Pro7 Morning Show at Reich&Glücklich GmbH, Berlin
January 31, 2000 - July 9, 2025
Supported video editing and sound assistance for the Pro7 Morning Show.
Visual Effect Producer at Action Concept, Köln
January 31, 2000 - July 9, 2025
Produced visual effects for various projects.
Praktikum Tontechnik, Label at Atatak Studio&Label, Düsseldorf
July 31, 1998 - July 9, 2025
Internship in sound engineering and production at a music label.
Praktikum Tontechnik at Skyline Studios, Düsseldorf
February 28, 1998 - July 9, 2025
Sound engineering internship.
Praktikum, Ton-/Bildtechnik at WDR Landesstudio, Düsseldorf
January 31, 1994 - July 9, 2025
Internship involving audio and visual technical assistance.

Education

Diplom-Medieninformatiker at Technische Fachhochschule, Berlin
April 1, 2000 - April 30, 2005
Nachrichtentechnik at Technische Fachhochschule, Berlin
October 1, 1998 - April 30, 2000
High School Diploma at Annette-von-Droste-Hülshoff-Gymnasium, Düsseldorf
January 1, 1987 - December 31, 1996

Qualifications

Add your qualifications or awards here.

Industry Experience

Media & Entertainment, Software & Internet, Travel & Hospitality, Consumer Goods
    paper Runter vom Gas – WordPress Accident Atlas with Scrollytelling for the Ministry of Transport

    [🔗 runtervomgas.de](https://www.twine.net/signin

    Tech Stack: WordPress, JavaScript, Mapbox, HTML, CSS, ACF, Custom Post Types

    • Development of an interactive web application as part of the “Runter vom Gas” road safety campaign for the Federal Ministry for Digital and Transport (BMDV), in collaboration with Scholz & Friends.
    • Design and implementation of a scrollytelling format to present accident statistics and personal stories on an interactive map.
    • Integration of storytelling elements and map interactions for intuitive visualization of complex traffic data.
    • WordPress-based implementation with a custom backend for structured content management by the editorial team.
    paper Galakto – Shopify Webshop for a Children's Audiobook Player

    [🔗 galakto.com](https://www.twine.net/signin

    Tech Stack: Shopify, Liquid, JavaScript, HTML, CSS

    • Development of a user-friendly and playful Shopify store for selling a children’s audiobook player.
    • Custom backend and theme modifications to optimize the display of product information and streamline content management.
    • Enhancement of frontend filtering and sorting options to improve navigation and product discoverability.
    • Implementation of custom logic using Liquid and JavaScript for displaying product bundles, metafields, and special categories.
    paper Women’s Resistance – WordPress Website for Exhibition Launch

    [🔗 widerstand-von-frauen-ravensbrueck.de](https://www.twine.net/signin

    Tech Stack: WordPress, Elementor, ACF, WPML

    • Technical implementation of a multilingual website for the launch of the exhibition “Women’s Resistance in the Ravensbrück Concentration Camp.”
    • The exhibition was developed in collaboration between the Ravensbrück Memorial and the German Resistance Memorial Center as part of a Bundestag-funded project honoring women’s resistance to National Socialism.
    • Website built on WordPress and Elementor, featuring a multilingual setup (WPML) and modular content structure via ACF.
    paper Covering CRS & Dart Center Ukraine – WordPress Sites for Journalism Initiatives

    [🔗 coveringcrsv.org](https://www.twine.net/signin

    Tech Stack: WordPress, Elementor, PHP, ACF, WPML, Custom Post Types

    • Development and implementation of WordPress websites for journalism projects focusing on reporting from conflict zones and gender-based violence.
    • Particular challenges included the implementation of a multilingual structure (10 languages), performance optimization despite complex content architecture, and user-friendly design for a diverse audience.
    • Currently developing the final website for the Dart Center Ukraine to further improve journalistic access to sensitive topics.
    paper Paramount Presse – WordPress Portal for Press & Media Content

    [🔗 paramount-presse.de](https://www.twine.net/signin

    Tech Stack: WordPress, Elementor, PHP, ACF, Custom Post Types, REST API

    • Development of a custom WordPress portal with a member area for Paramount to manage press releases, images, and media content.
    • Implementation of a tailored backend for structured content management and editing.
    • Optimization of data handling & performance, especially for large image files and editorial content.
    • Integration of a protected members-only area for exclusive content.
    paper Dein Irgendwo – Interactive WordPress Platform for Youth Work

    [🔗 dein-irgendwo.de](https://www.twine.net/signin

    Tech Stack: WordPress, Elementor, PHP, ACF, Custom Post Types, JavaScript, REST API

    • Development of an interactive platform for the Bavarian Youth Council (BJR) on behalf of the Bavarian State Ministry for Family, Labour, and Social Affairs to connect young people with leisure activities.
    • Implementation of a dynamic map and search function to filter content based on interests.
    • Data structuring & use of custom post types for efficient management of locations, events & organizations.
    • Development of a customized backend for content management by admins & registered members.
    • Integration of a promotional material generator allowing users to create individual flyers & posters.
    paper Nickelodeon Contest Platform – Annual Interactive WordPress Projects

    Tech Stack: WordPress, Elementor, JavaScript, PHP, Custom Plugins

    • Development of several interactive contest websites for Nickelodeon with features such as live streaming, gamification elements & tracking integrations.
    • Implementation of dynamic user interactions, including rating-based games & interactive features.

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