Shopware reference: six brand shops and the DasGastroPortal B2B portal for the Bitburger Brewing Group – including accessibility and single sign-on.

Smashy – the AI chatbot on tennis.de for the German Tennis Federation – RAG-powered self-service for players, clubs, and associations, day and night.

AI-powered chatbot for the German Olympic Sports Confederation; a multilingual digital assistant using RAG technology for clubs and volunteers.

Gridside HANS – an interactive planning tool for the TransnetBW grid reconstruction – switching calendars, network maps, and reports for the transmission grid.

VIPR – an AI framework using invertible neural networks for real-time solving of inverse problems in materials research at facilities.

Inspect 3D – a web frontend for configuring AI-powered quality inspection of 3D-scanned components with interactive point cloud visualization (Vue.js, Three.js).

Custom web interface for precise industrial camera calibration – the foundation for reliable AI-powered image processing in quality assurance.

E-commerce and fulfillment for activated carbon filters "Made in Germany"

Targeted security analysis and rapid vulnerability identification

Processing trillions of data sets in real-time

Tailor-made software solutions for a successful business consultancy

An overview of our favorite tools – PHP, C++, Java, Scala, the Zend Framework, DHTMLX and InfiniDB – and why they help us build lean, high-performance software.

The official Basho RIAK KV TS CS documentation is sometimes unreachable, so we set up a mirror at riak.docs.hw.ag to keep the content available.

A practical guide to using BTRFS snapshots for root filesystem and database backups, covering COW pitfalls, BTRFS-SxBackup and tips for restoring MySQL data.

Why deleting data in Riak alone doesn't free disk space, and how our own riakcompact tool compacts eleveldb tombstones to reclaim significant storage.

An fio benchmark on brand-new 16TB disks compares RAID5 and RAID10 under MDADM on sequential and random read/write performance, with a recommendation.

Dirty benchmarks show cheap NVMe SSDs handle MySQL fsync workloads far faster than pricier Samsung Pro drives, which is why we now avoid them on workstations.

A basic chroot often isn't enough – arch-chroot from Archlinux sets up dev, proc, sys, dev/pts, dev/shm and resolv.conf automatically, on any Linux distro.

How to use filefrag and a bash one-liner to find the most heavily fragmented files on a BTRFS filesystem and defragment only those, reclaiming disk space.

How a small core patch and the Linux parallel tool sped up Shopware 5 thumbnail generation for 1.6 million images from 80 hours down to 3.5 hours.

How to use dnsmasq to resolve only selected domains such as fritz.box via the VPN DNS server, while routing all other traffic outside the tunnel.

An open-source Docker wrapper translates Amazon MWS calls into SP API calls, letting shops on outdated systems keep running without an expensive rewrite.

Why DevOps work truly begins after launch – covering monitoring with Sentry and Grafana, alerting via Zabbix, and CI/CD pipelines for safe deployments.

From June 2025 Germany's Accessibility Empowerment Act requires many shops and apps to meet WCAG 2.1 AA – we explain who is affected, deadlines and costs.

How to run GitLab via Docker Compose alongside other services, fronted by Traefik as a reverse proxy for TLS and a dedicated container registry.

A free accessibility statement template for the German BFSG law, with legal background, practical tips and sample wording to help avoid costly warning letters.

How to configure Renovate with custom packageRules and a versioning regex so it correctly parses the Shopware marketing version number as a compatibility field.

How we manage server software using GitOps, Docker Compose and Renovate Bot, with automated security updates via digest pinning and opt-in major upgrades.

Part 1 of a series on Shopware 6 plugins with GitLab CI – how to publish a plugin automatically via the GitLab Package Registry and semantic-release.

Part 2 of a series on Shopware 6 plugins with GitLab CI – how to build plugin assets fast using shopware-cli and GitLab caching for the release job.

Part 3 of a series on Shopware 6 plugins with GitLab CI – running code quality checks and PHPUnit tests against a full Shopware instance inside the pipeline.

How to configure Traefik so containers get automatic HTTPS subdomains through a naming convention, removing the need for per-service Traefik labels.

As a Fullstack Web Developer (m/f/d), you'll shape modern web applications from user interface to server-side logic – using cutting-edge technologies and best practices within an agile team.

Mobile app development - experience in iOS, Android & cross-platform apps

Your contact partner for artificial intelligence

Learn more about the seamless integration of Shopware with your backend system

Individual solutions, problem elimination, third-party software optimization