Portrait of web developer Ingo Steinke in Berlin

Ingo Steinke

Creative Web Developer
CV, Projects, Skills

Berlin, 23 April 2026

Web Developer with a Passion for UX Design

I'm Ingo Steinke, a self-employed, CSS- and front-end focused web developer with over 25 years of professional experience. When developing elegant and easy-to-use websites, I pay attention to accessibility, loading speed and maintainability.
Since 2024, I am a certified Shopware developer.

I'm pragmatic, communicative and enjoy working closely with web designers.

Download CV, projects list, and skills matrix as a PDF file:


Accessibility and Sustainable Digitalisation

Digitalisation primarily stands for technological progress. The economic benefits of sustainable innovation have often been overlooked. I like to support ethical and ecological projects, for example the transition in the transport sector, renewable energies, and environmentally-friendly fashion. Thanks to my experience, we can elegantly comply with legal requirements such as the General Data Protection Regulation or the European Accessibility Act.


Professional Background

I co-founded a start-up in 2000 whose first products were interactive websites and browser games. Later, our core business transitioned to search engine optimization and our own CMS and e-commerce software.

While employed as an e-commerce engineer at Xsite in Düsseldorf from 2010 to 2014, I developed online shops for Shop-Apotheke.com, Ars mundi, and other customers. As a technical consultant at Sevenval Technologies (later Avenga Germany) in Cologne and Berlin, I optimized the loading time and mobile phone compatibility of apps and websites for Frankfurter Allgemeine Zeitung and online shops for Otto Group and created front-end applications for wao.io and other customers.

I'm a freelance web developer since 2020, working for agencies and individual customers.

Projects

Portfolio: Style Consultant

Kleiderordnung.Berlin is sustainable stylist Tina Steinke's portfolio website. The multilingual, responsive CMS theme is search engine optimised and environmentally friendly, with subtle animations and scrolling effects.
kleiderordnung.berlin

HTML CSS JavaScript PHP CMS

Portfolio: Financial Consultant

Front-end web development: a minimalist design with a focus on typography and layout, implemented as a flexible theme for an accessible and responsive portfolio website with a content management system.
kunnigkonsulting.com

HTML CSS JavaScript PHP

Native Web Themes

Front-end web development to replace existing legacy themes and plugins with a native theme featuring dynamically adapted designs and tracking for conversion rate optimisation in a complex multi-domain setup for a big online service provider.

PHP JavaScript CSS Cypress Docker

Responsives Portfolio

"gemeva", an abbreviation of "common sense", is the title of the Swiss consultant and project manager, Tanja Berger's portfolio. I developed a responsive WordPress theme based on Michael Berger's graphic design.
gemeva.ch

WordPress JavaScript HTML CSS

Agency Portfolio

Collaborating on the co-creation agency Twisted Connection's website relaunch together with the customer and her designer, I extended the design system, reusing existing website content.
twistedconnection.co

JavaScript HTML CSS CMS

Course Booking Maintenance

I took over maintenance, optimization and further development of a course booking website's WordPress frontend and its import interface in 2023 that I continuously keep maintaining ever since. The challenge: Understanding and continuously extending the legacy code base.

PHP HTML CSS JavaScript WordPress npm

Design System

As a freelance senior lead developer on a team of front-end web developers, I developed a scalable modular component design system for relaunching an international corporate customer's multiple websites (STRABAG SE). Launched on schedule in multiple countries in 2022.
karriere.strabag.com

HTML SCSS CSS Fractal Handlebars

Online Shop

I support the ecological shop Food Together by maintaining and enhancing the online shop featuring subscription orders, seasonal bundles, and price transparency information.

foodtogether.de

WooCommerce JavaScript PHP CSS

Campaign Website

A collaboration between Creatives and Psychologists for Future, the voluntary impact campaign "You can do it" ("Das kannst du tun") supports mental health and ecological action. I advised, optimised the responsive display and added a high-contrast version.
daskannstdutun.de

WordPress CSS JavaScript

Developer Portfolio

My relaunched portfolio at Ingo-Steinke.com reflects my work as a web developer. Minimalist design, modern typography, fast loading time (97/100 Page Speed Performance Score) and environmentally friendly web technology characterise my professional portfolio.
github.comgithub.com/openmindculture/ingo-steinke.de

Eleventy Liquid HTML CSS JavaScript


Professional Skills

  • Frontend Web Development

    • JavaScript, TypeScript
      React TypeScript npm ES6+ VanillaJS
    • CSS
      CSS 3 PostCSS SCSS Bootstrap Tailwind
    • HTML, Markup
      HTML 5 Markdown Liquid Twig

  • CMS, E-Commerce, Web Tech Stacks

    • JavaScript, JAM Stack
      Astro Eleventy fractal esbuild Node.js Vite
    • Shopware 6
      Shopware 6 PHP 8 SCSS JavaScript Twig
    • WooCommerce, WordPress
      HTML CSS JavaScript PHP WooCommerce

  • Testing, Developer Tools

    • Quality Assurance
      BrowserStack Cypress Playwright Storybook Vitest
    • Collaboration and Agile Methods
      Kanban Scrum Jira Git GitLab GitHub
    • Page Builders and AI Software
      Webflow Matomo Copilot JetBrains AI Claude

Contact me
Ingo Steinke
Donaustr. 83 II
12043 Berlin
Deutschland

contact@ingo-steinke.com
+491634684080

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VAT ID DE337676808



QR-Code: Kontakt zu Ingo-Steinke
I welocme your business inquiries and look forward to a fruitful cooperation!