Senior Software Engineer Ruby on Rails 100% remote (m/w/d)

Not every good software is in the spotlight. But it ensures that companies can work reliably every day. At easybill, we build software that helps over 27,000 companies manage invoices, processes, and integrations more simply, quickly, and automatically. E-invoicing is becoming mandatory. E-commerce is becoming more complex. AI is changing how good software is created. And that is exactly where we come in. For our e-commerce application easybill Connect, we are looking for a Senior Software Engineer Ruby on Rails (m/f/d) who doesn't just write code, but takes responsibility, understands systems, and is eager to achieve real product impact with AI, ownership, and high technical standards. If you enjoy managing projects independently, solving complex problems cleanly, and viewing AI tools like Claude Code not as a gimmick, but as a productivity lever: Welcome to easybill. What is it about? easybill Connect is our central solution for e-commerce merchants who need to connect invoices, marketplaces, shop systems, shipping processes, and tax requirements. The application is developed in Ruby on Rails. Our stack is technically demanding and includes, among others: MySQL / Percona XtraDB Cluster, TiDB, Elasticsearch, Redis, MinIO, Docker, TypeScript, React, and many other technologies. You will work on features and systems that simplify real processes every day. It's not about pretty demo features, but...