[Hiring] Senior Fullstack Engineer @Taxfix

Role Description

As our Senior Fullstack Developer, you'll have the freedom to work from home or our modern, well-equipped office in Stuttgart (Fellbach). You'll be responsible for evolving our unique tax technology and building a scalable, future-oriented architecture. Collaborating closely with our product and frontend experts, you will leverage AI-driven development to accelerate our growth and deliver maximum value to millions of users.

Your Responsibilities

• Take ownership of the continuous development of our internal services and tools.
• Substantially shape the build-out of a scalable, future-oriented architecture and infrastructure.
• Expand and refine our existing CI/CD pipelines and automated testing frameworks.
• Collaborate with product and frontend teams to design and implement impactful new features.
• Actively drive AI-supported development by integrating LLMs for code generation and product features.
• Explore and implement advanced topics like machine learning, generative AI, and data engineering.
• Contribute to the full lifecycle of brand-new products from the very first line of code.

Qualifications

• You possess strong proficiency in at least one object-oriented or functional language (Java, Kotlin, Scala, Python), with a focus on TypeScript.
• You have a passion for writing high-performance, maintainable code and designing complex systems.
• You are highly proficient with modern AI tooling, such as Claude Code, GitHub Copilot, Cursor, or LLM APIs.
• You actively follow AI trends and proactively integrate innovative tools into your daily workflow.
• You have a strong desire to dive into new technical territories and continuously develop your skills.
• You enjoy working in a small, agile team where your contribution has a direct, visible impact.
• You are a pragmatic problem-solver who values logic and data over hierarchy.

Benefits

• A chance to do meaningful, people-centric work with an international team of passionate professionals.
• Holistic well-being with free mental health coaching sessions and yoga.
• A monthly allowance to spend on an extensive range of services that you can use and roll over as flexibly as you like.
• Employee stock options for all employees - because everyone deserves to benefit from the success they help to create.
• 30 annual vacation days and flexible working hours.
• A generous learning budget to support your personal and professional development and guidance from our internal L&D experts.
• Work from abroad for up to six weeks every year. Just align with your team, and then enjoy your trip.
• Plenty of opportunities to socialise as a team. In addition to internal meetups, our international team hosts regular get-togethers - virtually and in person when possible.
• Free tax declaration filing, of course, through the Taxfix app - and internal support for all personal tax-related questions.
• Have a four-legged friend in your life? We’re happy to have dogs join us in the office.