Freelancer profile translated to English.

Description

I am a senior software developer and lead developer with over 30 years of experience in the conception, development, and operation of scalable online platforms. My focus is on PHP (Laravel, Symfony): backend development, system architecture, API integration, and database design. I have many years of responsibility for high-traffic media platforms, lead technical projects, ensure quality assurance, and coordinate external developer teams.

Experience in infrastructure integration (CDN, Cloud), automated deployments (Docker, CI/CD), and the gradual modernization of existing systems round off my profile. I am also happy to take on older codebases, work structurally on eliminating technical debt, and am not afraid of legacy code. I also realize and support smaller full-service e-commerce solutions for the retail sector.

I work solution-oriented, independently, and reliably, value teamwork, and am happy to take on long-term customer responsibility - I accompany many projects over years.

Available for remote or hybrid projects in the Augsburg / Munich area.

Industry field of expertise

Languages

German
Native or bilingual
English
Basic

Workplace preferences

Can work on-site

Augsburg (up to 50km), München (up to 20km)

Eigene Software- und Hosting-Agentur Webmonauten
Lead Software Developer / Backend Engineer
E-COMMERCE
January 2001 - Today (25 years and 7 months)
Augsburg, Germany
Founding of a software company with a focus on web development, system architecture, and operation of digital platforms.

Focus areas:
● Backend development with PHP
● Development and support of web platforms based on LAMP
● Architecture and operation of scalable hosting and cloud infrastructures
● API integration and interface development
● Technical project management and quality assurance
● Management of external developer teams and service providers

Project excerpt:
- Many years of technical support for central digital projects of Süddeutsche Zeitung. (e.g. sz.de, sz-magazin.de, jetzt.de, E-Paper, press releases, advertorials)
Technologies: PHP, Symfony, Node.js, MongoDB, AWS S3 and CloudFront, Heroku, Akamai

- Kamahyoga.com – Sport fashion online shop
Platform: Shopify

- krp-m.de – Engineering office for aerospace
Website development with Joomla (LAMP)

- sofint.de – Fashion label
WooCommerce shop (LAMP, Cloudflare)

- autographen.org – Autograph and book trade
TYPO3 website, WooCommerce shop, CRM system in Laravel (LAMP)

- medien-akademie.de - Academy of German Media
Website development with Zend Framework (LAMP)

- mux.de - local search and business directory for Munich
Website development, performance optimization, and technical further development of the platform (LAMP, Symfony).
PHP Symfony Laravel MySQL JavaScript
Süddeutsche Zeitung Digitale Medien GmbH
Senior PHP Developer / Backend Engineer
PUBLISHING
January 2003 - April 2026 (23 years and 3 months)
München, Germany
Project excerpt:
Many years of technical support for central digital projects of Süddeutsche Zeitung.

Tasks:
● Front-end/backend development and system architecture for web platforms
● Development of PHP applications (including Symfony, Laravel, Zend)
● Interface development between print and online editorial systems
● Technical further development of digital publishing systems
● Infrastructure integration with CDN and cloud services
● Ensuring code quality and coordination of external developers

Important projects:
● sz.de, sz-magazin.de, jetzt.de, E-Paper, press releases, advertorials

Technologies: PHP, Symfony, Node.js, MongoDB, AWS S3 and CloudFront, Heroku, Akamai
PHP Symfony JavaScript Node.js Back-End development
Mux oHG
Senior Developer, Technical Consultant, System Architect
January 2007 - January 2009 (2 years)
München, Germany
Further development of the website mux.de
Performance optimization of the PHP codebase and the database
Technical further development of individual modules (Symfony)
Symfony PHP LAMP MySQL Search Engine Optimization (SEO)