Data Science Manager

Berlin - Data & Insights

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 Berlin and Madrid, Team Taxfix is a compassionate group of solution-finders. We speak our minds openly, and with 500+ professionals from 45+ different nationalities, we're rich in ideas and voices. In five years, we've raised over 300 million euros in funding and helped people reclaim more than one billion euros.


Your challenge:

As a Data Science Manager, you will be responsible for building data product via ML and advance statistics. You will be responsible for growing and developing your team as well as work close with mission teams on ideation and deployment your solution. You will help a significant impact on our customers facing features and experience.

Your team:

[Example: We believe in Internal Open Source because it cultivates a strong spirit of collaboration and fast evolution while maintaining a high standard of quality. This way of working is made possible by using the universal language JavaScript, specifically, React, React Native and NodeJS. We also utilise Elixir in the reasoning engine used to write our tax logic. Everything runs in Docker—orchestrated by Kubernetes and powered by Google Cloud Platform.

Our cross-functional team structure gives developers a broad scope of our stack. We're passionate about decentralised, end-to-end ownership and deep collaboration. We live our development values by learning from one another through internal meetups, hackathons, and close collaboration.]

Your responsibilities:

  • Manage team of 2-4 data scientists - mentor and motivate, responsible for recruiting and growing the team
  • Responsible for Data Science project life cycle from ideation, feature engineering, model building to deployment 
  • Identify opportunities and unlock new product and services opportunities through data products
  • Establish best practice for data science, tools, methodology and deployment
  • Collaborate with different teams such as Product management, Data Engineers, and Data Analytsts 
  • Manage strong relationships with sponsors and stakeholders

Your profile:

  • 2+ years managerial experience including hiring, mentoring and growing a team. 6+ years experience as a data scientist.
  • Hands-on experience with prediction models
  • Excellent SQL and Python coding skills
  • Knowledge of a wide variety of Machine learning and Statistical methods (Classical ML, OCR, NLP, Risk Scoring and Recommendation Systems)
  • Proven track records of multiple scalable ML solution in production
  • Good understanding of A/B testing concepts to evaluate new ML models
  • Good communication skills in English and ability to work with stakeholders across all levels

Why Taxfix?


  • A chance to do meaningful, people-centric work with an international team of passionate professionals.
  • Holistic wellbeing with free mental health coaching sessions, yoga, and a discounted membership to Urban Sports Club.
  • A monthly allowance to spend on home support services, including childcare, housekeeping, pet sitting, tutoring, and elderly care.
  • Employee stock options for all employees—because everyone deserves to benefit from the success they help to create.
  • Dedicated relocation and visa support for those that need it.
  • 30 annual vacation days and flexible working hours.
  • Full trust to take ownership of your work in a flat hierarchy where feedback is encouraged and expected.
  • 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 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 below:


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 anyways. You might bring something special to the team that we hadn't previously considered.