Daniel is responsible for technological architecture and software development at HQ GmbH. For over two decades, he has been translating complex business requirements into highly available and scalable systems. Anyone who encounters significant technical limitations in e-commerce, complex CMS projects, and enterprise hosting works with him.
Career path & technological evolution at HQ GmbH
- 2026
Current Shopware 6 certifications & mentoring
As a guarantor of the highest code quality, secure migrations and up-to-date architectural knowledge, Daniel will hold the full range of high-ranking official Shopware certifications in 2026:
- Shopware 6 Certified Solution Architect
- Shopware 6 Certified Advanced Developer
- Shopware 6 Certified Backend Developer
- Shopware 6 Certified Frontend Developer
- Shopware 6 Certified Solutions Specialist
Internal Developer Lead: He doesn't keep this concentrated top-level knowledge to himself. Daniel is responsible for the ongoing internal training of our entire development team to ensure that every developer at HQ GmbH operates at precisely the highest level of quality and expertise.
- Since 2015
Head of Development
In his current role, Daniel manages business-critical system migrations and complex server relocations (e.g., from Magento or Shopify to Shopware 6) under tight deadlines. He leads the code forensics and in-depth analysis of legacy systems and incompletely documented third-party software to technically ensure a secure agency transition at no cost.
- Ongoing
High-performance optimization (“The top class”)
Taking on architectural responsibility for the in-house ad serving system. Development in this high-frequency area is considered the absolute pinnacle of software architecture: When processing gigantic amounts of data in real time, even a 1% lack of code optimization means the immediate cost of five additional servers.
Daniel now applies this uncompromising approach to hardware efficiency directly to our enterprise e-commerce infrastructures. Through in-depth tuning (including TTFB minimization, Varnish caching, and database indexing), he ensures that complex Shopware and CMS clusters scale with high availability, lightning speed, and, above all, cost-effectiveness, even under extreme peak loads.
- 2008
Entry-level positions as programmers & legacy architects
Daniel began his career directly at the codebase of HQ GmbH. This foundation forms the basis for his unparalleled, deep technological understanding. He has witnessed the evolution of e-commerce from the very beginning and has mastered the architecture of legacy systems such as OSCommerce, XT-Commerce, and TYPO3 (from version 3 onwards) down to the smallest database detail.
Reference projects & milestones
Shopware Rescues & Performance Tuning
Crisis Management & Optimization: In addition to developing entirely new products, Daniel has stabilized dozens of critical Shopware projects and carried out complex rescue migrations under extreme time pressure. His performance and migration projects include well-known shops such as Baz-Kerzen.de, chocoidea.com, decorasian.eu, deinvan.de, die-wolldecke.de, kaminxpert.de, juwelier-harnisch.de, piercing-store.com, rostidee.com, ski-shop.ch, and zirb.at.
Betty Barclay & SCHIESSER GmbH
Enterprise Storefinder & Core Web Vitals: Daniel was instrumental in the in-depth code and core web vitals optimization of the individually developed, high-traffic storefinders for the international fashion brands Betty Barclay and SCHIESSER GmbH.
In-house ad serving system
High-frequency architecture: The architectural development and maintenance of this system for processing gigantic amounts of data. This approach to hardware efficiency is the benchmark that Daniel applies to every e-commerce client project today.
Crisis Management & Emergency Relocations
Coordination of standardized DevOps pipelines for 24/7 support. Daniel manages system migrations and rescues stalled Shopware projects under extreme time pressure to categorically rule out business-critical outages for B2B and B2C SMEs.
System architecture & scaling
Sustainable stabilization and auditing of enterprise e-commerce infrastructures. Specializing in measurable performance improvements through strict adherence to Core Web Vitals (LCP, INP, CLS).
Code forensics & in-depth analysis
Technical reconstruction, unbundling of historically grown relational databases and troubleshooting of complex legacy code.
Track Record & Background
Daniel started as a core developer at HQ GmbH and has played a key role in shaping the technological development of our Shopware agency from the ground up. A milestone in his career is the continuous development of agile, high-performance deployment processes that enable us to synchronize massive amounts of data and complex ERP interfaces flawlessly.
With this experience from over 20 years of project work, he is now the final authority at HQ GmbH when existing system landscapes need to be thoroughly optimized, modernized or freed from critical imbalances.
"Stable systems don't emerge by chance, but through clean architecture, measurable DevOps processes, and the willingness to delve deep into legacy code precisely where other agencies turn back."