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

Not all good software gets 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 easily, quickly and automatically.

E-invoicing will become mandatory. E-commerce is becoming more complex. AI is changing how good software is created.

And this is exactly where we start. For our e-commerce application easybill Connect, we are looking for a Senior Software Engineer Ruby on Rails (f/m/d) who not only writes code, but also takes responsibility, understands systems and has the desire to achieve real product impact with AI, ownership and technical standards. If you like to manage projects independently, solve complex problems cleanly and see 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 retailers 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 sophisticated and includes, among other things: MySQL / Percona XtraDB Cluster TiDB Elasticsearch Redis MinIO Docker TypeScript React and many other technologies.

You work on functions and systems that simplify real processes every day. It's not about pretty demo features, but about resilient software, clean architecture, stable integrations and solutions that our customers rely on. Why now?

E-invoicing will become mandatory. Finance automation is becoming a category. E-commerce remains complex.

And AI is changing how software is created. easybill stands at exactly this interface: legal change, real customer needs, an established product and an engineering team that wants to continue building with a high level of ownership. Tasks You develop and improve our e-commerce application easybill Connect with Ruby on Rails You take responsibility for complete features and projects - from technical conception through implementation to stable operation You work on scalable backend solutions, robust interfaces and high-performance processes for marketplaces, shop systems, shipping and e-commerce APIs If necessary, you also develop in the front end with TypeScript and React and get involved where your contribution has an impact You support data migrations, refactorings and technical modernizations with a clear eye for stability, maintainability and quality. You systematically analyze errors, get to the bottom of the causes and ensure that problems are solved sustainably.

You naturally use AI tools like Claude Code in your everyday development to iterate faster, check code better, understand connections and increase your productivity. You contribute your own ideas, constructively question existing solutions and help to continuously improve our engineering processes to further develop You work closely with product, UX, support and other engineering areas if it makes sense for the project If you also want to get involved in related disciplines such as UX, product management or infrastructure, we specifically create space for this Qualification We do not expect that you have already completely mastered our tech stack. What is more important to us is that you have in-depth knowledge of web development, master your current stack and have the motivation and quick comprehension to quickly familiarize yourself with our technologies.

This is what you should bring with you: You have in-depth experience in software development and understand how modern web applications are reliably built, operated and further developed You have very good knowledge of at least one relevant backend stack - ideally Ruby on Rails, alternatively you have the ability to familiarize yourself quickly and in a structured manner You don't just think in code, but in products, processes, users and long-term sustainable solutions You work independently, proactively and with high quality standards You have experience in structuring technical topics, Prepare decisions and advance projects independently You use AI tools such as Claude Code, ChatGPT or similar solutions as part of your workflow as a matter of course - not because it is currently trendy, but because you see it as a real lever for speed, quality and learning You enjoy trying out new tools, working methods and automation options and integrating them sensibly into your everyday life You communicate clearly, authoritatively and at eye level You speak fluent German and good English Your plus points: You don't have to have all of them with you. But if you recognize yourself in some ways, we should talk: Experience with Ruby on Rails Experience with TypeScript and React Experience with eCommerce, marketplace or shipping APIs Understanding of invoice processes, taxes or accounting Experience with data migrations, refactoring or legacy modernization Interest in infrastructure, scaling, performance or DevOps topics Experience with AI-powered software development, e.g. B.

Claude code, cursors or your own automations

Benefits

You will be part of a dedicated engineering team that is constantly working on new functions, highly scalable solutions and the further development of our platform. With us you won't get any tickets to process without context. You get responsibility, clear goals and the space to solve things really cleanly.

You take on entire projects, think professionally, make technical decisions and advance topics independently. At the same time, you don't work alone: ​​you will be welcomed into a team that combines high standards with helpfulness and values ​​your drive. We are looking for people who prefer solving problems rather than managing them.

Who don't wait for perfect specifications. And actively use AI to understand faster, develop better and increase quality. This is how we work: You work remotely-first throughout Germany, but not alone.

At easybill you get clear priorities, short distances and enough space to solve things really cleanly. No meeting karaoke. No corporate polonaise.

No “we need seven more approvals for this”. In return you get: Focus Responsibility Good tools High technical standards Direct communication A team that prefers to solve problems rather than manage them AI is not a buzzword for us. It is a central part of how we think about engineering, product development and operational processes.

If you don't just "use" AI, but actively integrate it into your workflow and see it as a competitive advantage, you're a great fit for us. For us,

Benefits

are not decoration. We believe in a setup in which good people can do good work - flexible, focused and with everything they need Remote-first: Work throughout Germany from where you are productive Flexible working hours: 39-hour week, no 9-to-5 dogma Modern equipment: We equip you with high-quality work equipment, MacBook included 30 days of vacation: For real relaxation and new energy Workation: Use our workation options (villa on Mallorca) Further training: 1,500 EUR/year budget for your professional and personal development Hackathons: Transform your own ideas into real features Ownership from day 1: Responsibility instead of occupational therapy JobRad: Lease your dream bike or e-bike at attractive conditions Givve Card: Monthly tax-free

Benefits

in kind for your personal wishes Then we look forward to receiving your application as a Senior Software Engineer Ruby on Rails (m/f/d). If you want to build systems that make real work easier, like to take on responsibility and see AI as an integral part of modern software development: welcome to easybill! Find more English Speaking Jobs in Germany on Arbeitnow