Senior Software Engineer - FullStack (d/f/m)

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. The group has facilitated more than 3.5 billion euros in tax refunds for its customers since its founding in 2016.

Your challenge:

As a Senior Software Engineer, you’ll build core features for our flagship product, turning complex tax scenarios into simple, reliable experiences. You’ll work in a cross‑functional team to ship delightful customer journeys, and you’ll champion a strong engineering culture that prioritises scalable design, quality, and maintainability.

Your responsibilities and decisions:

• Collaborating with product management and design to work towards help solve customer problems

• Contribute to technical direction and strategy to further the long-term product vision.

• Create a great developer experience through good tools and practices that empower seamless delivery.

• Be part of cross-functional teams, working closely with other platform and product teams.

• Collaborate with other engineers and support an environment that values development, growth, and a safe environment to raise challenges.

Your profile:

• +5 years experience with React (ideally React Native) on the Frontend

• +5 years of experience with node.js on Backend

• Exposure to public Cloud Environment (Google Cloud, AWS or MS Azure)

• Familiarity with DevOps tools and concepts

• Familiarity with backend concepts and technologies (authentication systems, databases, cloud)

• Experience with integrating with diverse APIs

• Curiosity for AI-assisted development and familiarity with tools such as Cursor, GitHub Copilot or similar

• Passionate about writing maintainable and elegant code.

• A pragmatic person with a strong positive attitude.

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.