Summary
AI First Builder (Design) at Taxfix, a consumer fintech company focused on simplifying tax filing. This role requires strong product design, UX/UI skills, and proficiency with AI tools to own the full product loop from idea to shipped feature. Opportunity to work in a fast-growing, AI-driven R&D organization across Germany, Spain, and the UK.
- Location
- Berlin
- Type
- full-time
- Level
- Mid-Level
- Work mode
- hybrid
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, Steuerbot and TaxScouts, 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.
Your opportunity:
AI is shifting how the best products get built. The handoffs between product, design, and engineering are slowing us down. The companies moving fastest are doing it with people who own the full loop, from the user problem to the shipped feature, without losing the thread.
Builders. At Taxfix, we’re rebuilding our R&D organization around this idea. We call these people builders.
A Builder has a primary craft, one they’re genuinely excellent at, but they don’t stop there. They stretch across product, design, and engineering as the situation demands, using AI to cover the gaps. They’re accountable to outcomes, not job descriptions.
Taxfix has put €5 billion back into our customers’ pockets and we aren’t stopping there. We operate in Germany, Spain, and the UK, and we’re in the middle of a genuine AI transformation in how we build and how we’re organized.
In a world where it’s easier than ever to get software to 75%, with AI-generated UI, no-code tools, and rapid prototyping, the last 25% is where everything is decided. That gap between “good enough” and “unforgettable” is where great designers live. If you find handoffs frustrating because you can already see what needs to happen next, this role is for you.
Your responsibilities and decisions:
Take a user problem from rough idea to shipped interface. Write the brief, design the flow, prototype it, and ship it, with as few handoffs as possible. Own the full loop.
AI tools, Figma, or code, whatever gets there fastest. You use AI to explore, prototype, and accelerate, but your taste is the editorial layer. You know when AI-generated UI is wrong even when it looks right, and you fix it. Use AI as a force multiplier.
You don’t reach for a design system component when the user problem calls for something new. You reason about what the right interaction is, then build it. Solve from first principles, not templates.
You’re the person who notices the detail others miss and pushes the work to where it needs to be. Not perfectionism for its own sake: the craft that makes a product feel trustworthy. Sweat the final 10%.
No layers, no waiting. You’ll work closely with two or three other people who share the same model. Work in small, focused pods.
You know the metric your team is trying to move. You measure your week by what changed for users, not by screens delivered. Be accountable to outcomes.
You give feedback directly, to anyone, regardless of level. You raise blockers early and in the open. Push back when something’s wrong.
The designer who reads the API spec. Who writes the brief. Who builds in code when it’s faster than Figma. That instinct is what we’re hiring for. Stretch beyond design.
Your profile:
Your craft
You have genuine design craft and a track record to prove it. You’ve shipped interfaces that real users navigated without explanation, and you can point to the metric that moved when you did.
Strong visual sensibility, high standards for craft, and an eye for detail. You know what great looks like and you can help a team get there. You have taste: you know when something looks right but feels wrong, and you know how to fix it.
You’ve produced interfaces built with AI tools, Figma, or code, whatever got there fastest. The output method is irrelevant; the quality of the result is everything.
You know what complimentary design craft looks like from content design and research, but that doesn’t stop you from doing it yourself when the job requires.
You’ve built personal AI workflows that make you meaningfully faster. You know when to trust AI output, when to edit it, and when to reject it.
You solve problems from first principles. You don’t start with the component library. You start with the user and work forward.
You are able to demonstrate your work and share examples.
Your range
Across all three disciplines, you can hold your own: in Design, you ship interfaces people trust. In Product, you’ve gone from user problem to testable prototype without waiting for a brief. In Engineering, you’ve used AI coding tools to build something real. You’re not dependent on an engineer to implement your vision.
How you work
You’ve operated on measurable outcomes, not intuition alone. You know what metric you were trying to move, and you can say whether you moved it.
You believe the best way to learn is to get something in the hands of your users (ideally live).
You believe in experimentation and shipping with velocity to learn quickly. You know your way around AB tests and are excited to try new data science models to get feedback faster.
You’ve worked on products where getting it wrong has real consequences for real people, and that raised your bar, not lowered it.
You’ve operated in ambiguity and shipped anyway. You didn’t wait for full clarity: you acted, collected signal, and iterated.
You’ve found a way through blockers rather than waiting to be unblocked. When something was genuinely impossible, you documented why and moved on.
Fluency in English is required.
This role is not for you if…
You want a PM to define the problem and an engineer to implement the solution.
You resist working in code or with AI.
You think engaging with your users is a job for research. You think writing copy can only be done by a content designer. You hand off polished Figma files and believe your job is done.
You judge yourself only in taste and not outcomes.
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.
AI First Builder (Design)
Taxfix · Berlin