Alex Claes
Senior Full-Stack Developer
Experience
Senior Full-Stack Developer
Umbrella Organization of German Sports Clubs
- Development of a CMS-based online platform as a central hub for multimedia brand communication, focusing on accessibility, web performance, and data protection.
- Technologies: PHP, Craft CMS, Twig, HTML, CSS, JavaScript, Alpine.js, htmx.
Senior Full-Stack Developer
Leading Live Entertainment Organizer
- Development of a multi-tenant marketing platform for musical, theater, and concert tickets with a strong focus on highly customized UI theming based on the headless CMS Contentful.
- Technologies: HTML, CSS, JavaScript, TypeScript, React, Next.js, Tailwind CSS, Contentful, Vercel, GraphQL API.
Frontend Architect
Manufacturer of a Digital Medical Device
- Development of a touchscreen application to assist and analyze physiotherapy training with live feedback from sensors.
- Technologies: TypeScript, React, Tailwind CSS, Vitest, Cypress, Framer Motion, ECharts, XState, Storybook.
Head Coach for Web Development Courses
Leading Coding Bootcamp in Germany
- Conducting multiple courses teaching web development fundamentals.
- Systematic revision and redesign of the curriculum.
- Technologies: HTML, CSS, JavaScript, Git, React, Next.js, Jest.
Frontend Architect & Next.js Coach
Leading Food Retail Group in Germany
- Development of a B2C platform for the parent brand and all individual retailers, focusing on web performance and modularity.
- Technologies: TypeScript, React, Next.js, Emotion, CSS, Docker, Jest.
Senior Web Developer
Leading German magazine publisher
- Developed a UI library and a data-driven multi-tenant rendering solution focused on modularity, scalability, accessibility, and web performance as a foundation for delivery on multiple B2C content platforms.
- Technologies: CSS, Handlebars, Web Components, BackstopJS, Jest, Storybook, Koa, Lerna.
Full-Stack Developer, Tech Consultant, Engineering Manager, Tech Educator
Self-employed / Freelance
- Carried out full-stack development projects with modular, scalable, and high-performance architectures.
- Advised on technical web development topics, cloud platforms, and CI/CD.
- Coached web development from the basics to modern tools like React and Next.js.
- Technologies: PHP, Python (Django, Flask, FastAPI), Node.js, TypeScript, HTML, CSS, JavaScript, AWS, Azure, Cloudflare, MySQL, PostgreSQL, MongoDB, Redis, REST, GraphQL, Storyblok.
Web Developer; Senior Web Developer; Senior Developer & Tech Team Coordinator
Jung von Matt/next
Year-long Internship
OGVIT Internet Technologies
Summary
I develop modular, scalable, and high-performance web applications based on well-thought-out architectures. In the backend, I offer solid expertise in PHP, Python, and Node.js. With this, I implement server-side rendering or robust API layers and integrate databases as well as other third-party systems. With an eye for detail, I put special emphasis on user-friendly UIs that focus on accessibility and progressive enhancement.
Thanks to broad practical experience from diverse collaborations, I help my clients understand technical challenges and make informed decisions. I provide strategic consulting and develop future-oriented, sustainable solutions that align with your long-term goals.
With experience in frontend, backend, operations, business, and design, I bring a holistic perspective to software product management. I focus on agile methods like Scrum and Kanban, prioritize lean approaches and clear requirement analysis.
Driven by a passion for learning and teaching, I offer hands-on coaching in web development, from the fundamentals to modern tools like React and Next.js.
Skills
- Php
- Laravel
- Symfony
- Drupal
- Craft Cms
- Typo3
- Wordpress
- Blade
- Twig
- Python
- Django
- Django Cms
- Flask
- Fastapi
- Graphene
- Node.js
- Typescript
- Express.js
- Strapi
- Apollo Server
- Prisma
- Mongoose
- Ghost
- Html
- Css
- Javascript
- Web Components
- Astro
- 11ty
- Alpine.js
- Vue
- Nuxt
- Htmx
- Tailwind Css
- Material Ui
- Storybook
- React
- Next.js
- Vercel
- React Hook Form
- React Router
- Redux
- Zustand
- Jotai
- Xstate
- Swr
- React-i18next
- React Query
- Radix Ui
- Phpunit
- Pytest
- Jest
- Vitest
- Cypress
- Playwright
- Chromatic
- Backstopjs
- Cucumber
- Jenkins
- Gitlab
- Github
- Bitbucket
- Azure Devops
- Aws
- Cloudflare
- Azure
- Mysql
- Postgresql
- Mongodb
- Firebase
- Redis
- Rest
- Graphql
- Contentful
- Storyblok
- Docker
- Emotion Css
- Framermotion
- Echarts
- Koa
- Lerna
- Git
Languages
Education
Northern Business School / Hochschule Wismar
B.Sc. Business Informatics · Business Informatics · Wismar, Germany
OGVIT Internet Technologien
Media Designer for Digital and Print Media (Specialization in Design & Technology)
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