Senior Data Scientist (m|f|d)

Are you passionate about using data to drive real business impact — and equally excited about shaping how Data Science is lived and breathed in a company? We are looking for a Senior Data Scientist (m/f/d) who not only thrives in applying cutting-edge methods and technology hands-on but also helps build a Data Science mindset across the organization.

We are a leading e-commerce company with around 700 employees, at an exciting stage: growing, ambitious, and ready to evolve. We are on our journey towards greater data maturity and recognize the need to change. Data Science is seen as a critical enabler — but we need curious, capable people like you to help make it happen.

This role combines technical excellence with cultural leadership, offering you the opportunity to apply your expertise while shaping how Data Science is embedded across teams. You’ll help shape both the technical foundations and the organizational conditions needed for impactful Data Science. You’ll join at an exciting moment, with the opportunity to shape and co-create our growing Data Science capability.

Your Challenge — Are You Up for It?

Be part of building a technically strong, business-relevant Data Science team and influencing hiring, onboarding, and growth. Help establish best practices, technical standards, and a shared understanding of Data Science across the company. Collaborate with Product, Engineering, and Business teams to make data-driven decisions the norm. Obtain buy-in from senior stakeholders and managers to pivot the organization towards fast, data-driven decision-making.

About your new role

• Advocate for data-driven thinking and, together with your peers, contribute to building a sustainable Data Science practice.

• Partner closely with Data Science, Software Engineering, Product, and Business teams to turn prototypes into scalable, reliable solutions.

• Enable and mentor others to build, deploy, and monitor production-ready models using state-of-the-art technologies, including container technologies such as Docker.

• Collaborate with the owners of the existing experimentation program to refine and scale causal analysis and experimentation frameworks that generate actionable insights.

• Foster knowledge-sharing, mentor colleagues, and act as a trusted advisor for stakeholders across the organization.

Skills & Requirements

Technical Strengths:

• Proven experience (5+ years) in applied Data Science, ideally in fast-paced environments.

• Hands-on technical skills: Python, SQL, modern ML libraries (scikit-learn, XGBoost, etc.), cloud platforms (preferably AWS), and container technologies such as Docker.

• Ability to write production-ready, maintainable code.

• Strong command of machine learning, statistics, causal inference, and experiment design.

Collaboration & Leadership:

• Excellent communication skills, with the ability to engage effectively with a wide range of stakeholders.

• Ability to translate complex problems into clear, actionable insights for technical and non-technical audiences.

• A basic understanding of the different kinds of teams you might encounter, including cross-functional teams from Product, Engineering, and Business.

• A pragmatic, self-starting attitude: you enjoy both solving problems and influencing how problems are solved.

• Experience building up a Data Science culture, driving initiatives, or contributing to team development is a big plus.

• The ability to obtain buy-in from various management roles to drive a data-mature, fast-paced decision-making culture.

You don't tick all the boxes? Don't worry, we are looking for employees who convince us with their personality and are motivated to go on full power with their team!

Why Join us?

• The rare opportunity to combine impactful, hands-on work with shaping how Data Science evolves in the company. This is a role with both technical and organisational influence — your work will not only deliver solutions but help shape how the company uses data at scale.

• A collaborative, open environment where your voice matters.

• Modern tech stack, autonomy to explore new tools and approaches.

• Support for your professional development and growth.

• A team at the beginning of its Data Science journey — your contribution will be visible and valued.

• You’ll be part of an organization eager to evolve, where your expertise will help shape how data is used to drive decisions.

• This role reports either to a senior executive at management level or directly to the managing directors, and works closely with peers across Product, Engineering, and Business teams.

• This is not a role for everyone. It's for those who enjoy ambiguity as much as algorithms, and who see shaping culture as part of delivering value. If that sounds like you — we'd love to hear from you.

At idealo you can expect

• You want to further your education? We take your personal development goals seriously and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching & mediation, we also offer you the opportunity to benefit individually from additional learning and development budget.

• And what about the office? Our office in the heart of Berlin offers excellent free lunch, as well as free coffee, lemonades and after-work beer, in addition to the "standard foosball". It also has a fabulous rooftop terrace with view of the whole of berlin where you can network with colleagues from our group of companies.

• You want full flexibility on your way to work and beyond? No problem with a job bike or Deutschlandticket - and it's environmentally friendly, too!

• You don't live in Germany yet? We support you in the visa process and with your relocation.

• Want to keep yourself fit? We offer many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs.

• You are a parent of a child that’s in need of daycare? Your needs are well looked after with our company KiTa which enables you to keep focused on work with no worries. In addition, you are paid in full for up to 30 sick days per child per year and if you are a single parent, even up to 60 sick days.

• And what else is there? Of course, success must be celebrated! In addition to team events, you can also expect big company events and other moments of organized connection with others in the company and your team throughout the year!

About idealo

idealo is a Berlin success story: in 2000 we started out with the mission of helping consumers make the best purchasing decisions. Today, with ~2.5 million visits per day, ~50,000 shops, and more than ~500 million product offers, we are one of the most popular German e-commerce websites and one of the leading European shopping and comparison platforms. We are active as a price comparison platform in six countries (Austria, France, Germany, Great Britain, Italy, and Spain).
We are located in the heart of Berlin and offer a unique idealo spirit. Your ideas are the driving force that moves our business forward. Not only our product portfolio is diverse, but also the people who work on it. We want you just as you are! Origin, religion, gender, sexual orientation, or a degree of disability are irrelevant.
If you are passionate about improving the world of online shopping alongside ~700 idealos from ~60 nations, we are happy to receive your application!

Information for applicants with severe disabilities: As an applicant with a severe disability, you can get advice from our Representative Body for Severely Disabled People (SBV) during the application process. Please inform us regarding this topic.

For the inclusion of people with disabilities, our office is accessible without steps. When you start with us, we will see what else is needed!

#LI-