Senior Software Engineer

We are a highly motivated team of software developers. As part of the team, you would develop new features and/or scaling solutions. Ownership is important to us. We expect a high degree of personal responsibility, the motivation to implement complete projects, and the desire to help shape the e-invoicing landscape. The main application is written in PHP/TypeScript, but we also develop in Kotlin and preferably Rust. We make extensive use of MySQL (Percona XtraDB cluster), TiDB, Elasticsearch, Redis, MinIO, Docker, and more. However, familiarity with multiple programming languages ​​is required.

Key Responsibilities:

• Independent, motivated and self-organized work – we are happy to invest in our colleagues, but we also have high expectations.
• Backend development (PHP + Symfony)
• Frontend development (TypeScript + React + TanStack)
• Developing microservices via Rust / Java
• Migration of PHP code to Rust.
• Data migrations, refactoring
• Error analysis and debugging
• You need to understand how to use AI as a productivity driver. We expect intensive use of Claude Code.
• Possibly work on the infrastructure and local Dockerized development environments.

Requirements:

Basically, you don't have to be able to do everything. What's important to us is that you can show us that you have a really good understanding of your current technology stack and that you can credibly demonstrate your willingness to learn our stack quickly.

• In-depth knowledge of software development is required. We primarily use PHP and/or, depending on the focus, TypeScript. We also have some Java and Rust in our setup. If you are an expert in Rust, Java, Go, Zig, or other languages, we would also be happy to get to know you.
• Bonus: Experience with Rust, DSA, TS, distributed systems, data-intensive applications
• Bonus: Open-source contributions or public experiments (GitHub)
• Language: Fluent German and good English skills

Benefits

• Nationwide remote-first team – no obligation to a specific location
• Workation in Mallorca - Our employees have the opportunity to use the
• rented villa in Mallorca for an inspiring combination of
• work and relaxation.
• High impact
• An inspiring and flexible working environment based on trust and personal responsibility.
• We are an open, motivated and friendly team with a flat hierarchy.
• No sprints and artificially created pressure
• Fair compensation packages and development opportunities
• 30 days of annual leave and a permanent employment contract
• Working hours are flexible and will be coordinated with the team.
• Voluntary employee events
• Current MacBook Pros
• Training/further education opportunities worth up to 1,500 euros per year

We face diverse challenges and are looking for a motivated team player! If this resonates with you and you're seeking a new challenge, we look forward to receiving your application.

We look forward to seeing you!