Staff Software Engineer (Steuerbot)

Our story:

Every year millions of people are either filing their taxes in fear or giving up on their tax refund altogether. We're working on fixing that. Our intuitive app enables anyone, regardless of education or background, to file their taxes with newfound confidence.

Spread across Germany, Spain and the UK, the team at Taxfix Group with its brands Taxfix and Steuerbot, is a compassionate group of solution-finders. We speak our minds openly, and with over 400 professionals, including tax experts, developers, and IT security experts, we're rich in ideas and voices. The group has facilitated more than 3.5 billion euros in tax refunds for its customers since its founding in 2016.

This role sits with Steuerbot , a Stuttgart-based brand within the Taxfix Group. This app guides users through their tax return in a friendly chat format, using clear, personalised questions that make filing simple with no jargon, nor stress. We believe everyone should be able to do their own taxes and get the most out of their refund, regardless of income or background.

We move fast, learn from mistakes, and build solutions that empower millions through a passionate team that values fairness, autonomy, and data-driven thinking. If you’re excited to shape the future of tax tech as part of a collaborative, mission-driven team, we’d love to meet you.

The opportunity :

As a backend developer, you’ll be part of a shared team between Steuerbot and Taxfix, directly led by the Steuerbot founders. You'll help us develop the unique technology that enables and accelerates the growth of Steuerbot and Taxfix. At the same time, you'll have the opportunity to further expand existing approaches in areas like CI/CD and test automation. Beyond pure development, you'll also have the chance to dive into exciting topics such as machine learning, database optimization, or data engineering. We're happy to give you time to explore new areas and grow your skills!

Your responsibilities and decisions:

• Build, improve, and maintain fullstack functionality across our backend services and web frontend, with a focus on correctness, performance, and maintainability.

• Design and evolve APIs and system boundaries so teams can move fast without creating fragile dependencies.

• Collaborate closely with product and design partners to shape solutions, clarify edge cases early, and deliver features end to end.

• Strengthen release safety and developer experience by improving continuous integration and delivery practices and test automation.

• Take ownership of production health for the parts of the system you work on, including observability, incident response, and follow-up improvements through the on-call rotation.

• Drive pragmatic architectural improvements that reduce complexity over time, rather than adding it.

• Lead through influence by mentoring, unblocking, and setting a high bar for engineering quality without needing direct reports.

Your profile:

• Strong professional experience as a fullstack engineer, with deep backend expertise and confidence owning frontend work when needed.

• Preferably strong Golang skills, and solid experience with modern frontend development using JavaScript and TypeScript.

• Proven system design ability: you can explain trade-offs clearly, make decisions with imperfect information, and keep systems evolvable.

• Experience operating containerized services in production and working with Kubernetes or similar orchestration tooling.

• A quality mindset: you care about automated testing, safe releases, and building systems that are understandable for others.

• Professional fluency in German.

• Familiarity with generative AI tools

• You are a diversity champion.

Why Taxfix?

• 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.

• 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 tech 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.

Excited? So are we. Learn more about Team Taxfix on our blog and get a glimpse of our culture.

At Taxfix, we believe that incredible things happen when you have a wealth of perspectives and experiences. We're proudly committed to equal employment and development opportunities no matter your gender, race, religion, age, sexual orientation, colour, disability, or place of origin. To help mitigate any potential unconscious biases, we ask that you refrain from including your picture, age, or marital status on your CV. Let your experiences speak for themselves.

Not sure if you meet all the requirements for this role? Please apply anyway. You might bring something special to the team that we hadn't considered previously.