Senior Software Engineer Ruby on Rails 100 % remote (m/w/d)
easybill GmbH2 months ago
Willich, GermanySenior
Responsibilities
- Develop and improve the easybill Connect e-commerce application with Ruby on Rails.
- Own complete features and projects from technical conception through implementation and stable operation.
- Build scalable backend solutions, robust interfaces, and performant processes for marketplaces, shop systems, shipping, and e-commerce APIs.
- Contribute to frontend development with TypeScript and React when needed.
- Support data migrations, refactoring, and technical modernization with a focus on stability, maintainability, and quality.
- Analyze defects systematically, identify root causes, and implement sustainable solutions.
- Use AI tools such as Claude Code to improve iteration speed, code review, understanding, and productivity.
- Contribute ideas and continuously improve engineering processes in collaboration with Product, UX, Support, and other engineering teams.
Requirements
- Deep experience in software development and understanding of how reliable modern web applications are built, operated, and evolved.
- Very strong knowledge of at least one relevant backend stack, ideally Ruby on Rails, or the ability to learn it quickly and systematically.
- Product-oriented thinking about users, processes, and sustainable long-term solutions.
- Independent, proactive working style with high quality standards.
- Experience structuring technical topics, preparing decisions, and advancing projects independently.
- Regular use of AI tools such as Claude Code, ChatGPT, or similar solutions in the development workflow.
- Interest in trying and integrating new tools, working methods, and automation opportunities.
- Clear and reliable communication skills.
- Fluent German and good English.
- Experience with Ruby on Rails, TypeScript, React, e-commerce, marketplace or shipping APIs, billing or tax processes, data migrations, refactoring, legacy modernization, infrastructure, scaling, performance, DevOps, or AI-assisted software development is advantageous.
Benefits
- Germany-wide remote-first work arrangement.
- Flexible working hours within a 39-hour work week.
- High-quality work equipment, including a MacBook.
- 30 days of vacation.
- Workation opportunities, including access to a villa in Mallorca.
- EUR 1,500 per year for professional and personal development.
- Hackathons for turning ideas into features.
- Ownership and responsibility from day one.
- JobRad bicycle or e-bike leasing.
- Monthly tax-free benefits through a Givve Card.
- Direct communication, clear priorities, and a collaborative engineering team.
Tech Stack
Categories
About easybill GmbH
easybill GmbH builds SaaS invoicing and finance-automation software for freelancers, SMBs, and e-commerce merchants, including e-invoices compliant with GoBD and over 60 marketplace and shop integrations. Its products include easybill for billing and easybill Connect for syncing orders, shipping, and tax data across e-commerce systems; more than 27,000 companies use the service. Founded in 2007 and headquartered in Kaarst, Germany, easybill is part of Paqato.