Founding Design Engineer

AI First Builder (Design) (d/f/m)

Taxfix

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 (Product Management) (d/f/m)

Taxfix

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. 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. Assume there’s no designer to give you a Figma file. No engineer to hand the spec to. The magic is knowing what to build, why, and in what order, then making it happen. If building the thing sounds more natural to you than describing it, this role is for you.   YOUR RESPONSIBILITIES AND DECISIONS: * Take a user problem from rough idea to shipped product. Write the brief, design the flow, prototype it, and get it in front of users, with as few handoffs as possible. Own the full loop. * Compress research, synthesis, and spec-writing from weeks into hours. You reach for AI tools not because you’ve been asked to, but because they’re faster. You know when to trust the output, when to edit it, and when to reject it. Use AI as a force multiplier. * You structure fuzzy problems, identify what should and shouldn’t be built, and move forward when there are dozens of possible directions. The magic is in the trade-offs, not the feature list. Turn ambiguous ideas into things users can trust. * No layers, no waiting. You’ll work closely with two or three other people who share the same model. Work in small, focused teams. * You know the metric your team is trying to move. You measure your week by what changed in user behaviour, not by how many tickets moved to Done. Be accountable to outcomes, not roadmaps. * You give feedback directly, to anyone, regardless of level. You raise blockers early and in the open. Push back when something’s wrong. Team player who raises the bar. * The PM who builds the prototype instead of describing it. Who writes the SQL query instead of waiting for an analyst. Who reads the API spec before assuming something is impossible. Who writes code to get it into the hands of users faster. That instinct is what we’re hiring for. Stretch beyond product.   YOUR PROFILE: YOUR CRAFT * You have a genuine product craft and a track record to prove it. You’ve shipped things that real people use, and you can point to the metric that moved when you did. * You have a builder track record: you’ve made things with AI, not just written specs about them. Shipped products, agent workflows, or tools real users have touched. Any of these count. * You’re AI-native by default. You use tools like Claude, Cursor, Lovable, or similar regularly. You follow the AI product space closely and you know the difference between a demo and something production-ready. * 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’ve gone from user problem to testable prototype without waiting for a brief to be written for you. The output was good enough that a team shipped from it. * Low PM baggage: you’re not attached to how product management "should" be done. You care about outcomes, not territory. YOUR RANGE * Across all three disciplines, you can hold your own: in Product you can identify opportunities, assess impact, and prioritize ruthlessly. In Design, you have taste: you know when something looks right but feels wrong. In Engineering, you’ve used AI coding tools to build something real, and you’re not dependent on an engineer to tell you why it’s broken. HOW YOU WORK * Data fluency: you know the metric you were trying to move, and you can say whether you moved it, with healthy skepticism about what metrics do and don’t tell you. * You believe in experimentation and ship with velocity to learn quickly. You know your way around AB tests and are excited to try new data science models to learn 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 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’re not genuinely excited about being able to stretch across design and engineering functions. * You’ve never built an AI prototype and/or shipped code (vibe coded side project counts) * You pride yourself in what you delivered rather than the outcome you achieved. * You need certainty, a full brief, or someone else’s research to get started. * You don’t believe in fast learning and getting things into customers hands early and use   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.

Senior Data Platform Engineer (d/f/m)

Taxfix

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. YOUR CHALLENGE: Taxfix makes tax filing simple, fast, and accessible for millions of users across Europe. Behind the product sits a data platform that powers everything from business analytics and regulatory reporting to ML and AI-driven product features. We’re growing and the platform needs to grow with us. We are looking for an experienced Data Platform Engineer to design, build, and operate the infrastructure and pipelines that make data at Taxfix reliable, compliant, and ready for AI. You will own the systems that move data from operational databases, APIs, and SaaS tools into our analytical environment and make sure that data is correct, timely, and safe to use. Your work will directly enable ML and AI-powered product experiences, self-serve analytics, and regulatory reporting. YOUR TEAM: The Data Platform team is part of the Data Organization, which enables everyone at Taxfix to make data-driven decisions, drive business growth, and power ML and automation in our products. Within our group we have product analysts, analytics engineers, machine learning engineers, and data engineers working across the whole company. The platform team serves many consumers analytics, ML, product, and compliance so you can expect to join cross-functional project teams regularly, working alongside backend and frontend engineers, analysts, ML engineers, product and design. Team members are all data engineers but from different backgrounds. We rely on each other to deliver our best, grow together, share knowledge openly, and invest in personal development through mentoring and innovation. YOUR RESPONSIBILITIES AND DECISIONS: * Contribute to and operate cloud platform infrastructure - manage GCP resources (GCS, Dataflow, Dataproc, k8s, Pub/Sub…), provision and maintain environments with Terraform and help ensure the platform is reliable, predictable, cost-efficient and scalable * Build and maintain ingestion pipelines that capture changes from application databases, APIs, SaaS and deliver clean, analytics-ready tables to our cloud data warehouse * Operate and improve our orchestration layer - scheduling, retries, SLA tracking, and observability for data pipelines * Design data models with proper layering that handle real-world data complexity: out-of-order events, schema evolution, late arrivals, and backfills * Own data quality monitoring - build validation, monitoring, and alerting that catches problems before downstream consumers do * Implement privacy and compliance controls - anonymization, pseudonymization, access policies, and deletion propagation (GDPR right-to-be-forgotten) across raw and derived layers * Prepare data for ML and AI use cases - build governed, privacy-safe datasets and feature pipelines that ML engineers and data scientists can use for model training, evaluation, and production inference * Use AI effectively in engineering workflows - leverage AI-assisted development where it improves delivery quality and speed, and share best practices with the team * Build scalable AI platform capabilities - develop reusable, production-grade patterns for AI workloads (governed data access, privacy-safe telemetry, evaluation datasets, and cost/quality monitoring) that multiple teams can adopt YOUR PROFILE: * 4+ years of experience in Data Engineering or a similar role (backend engineer working on data-intensive systems counts) * Strong Python skills for data pipeline development - you write production code, not just scripts * Strong SQL skills - window functions, CTEs, query optimization are second nature * Experience with event-driven data pipelines - CQRS, event ordering, idempotency, and the difference between initial load and incremental processing * Expert with Airflow - you’ve built DAGs with proper task dependencies, retries, and monitoring * Strong Snowflake or other modern data warehouse knowledge - resource management (compute/warehouse sizing, concurrency), security & governance (roles/RBAC, column/row-level masking), columnar storage & partitioning/clustering concepts, and query performance & cost optimization in production * Cloud platform experience - you’ve worked with GCP (GCS, Dataflow, Dataproc etc) or equivalent AWS/Azure services and understand how to manage cloud resources at scale * Infrastructure-as-code - experience with Terraform, Helm, or similar tools for provisioning and managing cloud environments * K8S and Docker containerization - you package and deploy your own work * Data quality mindset - you profile data, validate assumptions, build checks, and don’t trust that “the data looked clean” * Data for AI readiness - you have experience preparing data for ML and AI use cases with appropriate governance, lineage, and privacy controls * Awareness of data privacy requirements - you can identify PII, understand GDPR, and know how to implement anonymization and deletion across multiple data layers * AI-enabled engineering practices - you actively use AI assistants and code generation tools to accelerate development and deliver, and you share effective practices with the team 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.