Applied Scientist (All genders)

THE ROLE & THE TEAMThe Marketing Science team acts as the engine behind Zalando’s growth, partnering with business units across the full marketing funnel. We extend the Zalando experience beyond our platform, connecting customers with the fashion inspiration and shopping convenience they love. By leveraging cutting-edge technology, we ensure our marketing is relevant, engaging, and deeply respectful of customer privacy.We collaborate closely with product managers, engineers, and analysts to refine our industry-leading marketing engine. WHERE YOUR EXPERTISE IS NEEDEDRigorous Experimentation: Establishing the "ground truth" framework for measuring marketing effectiveness.Advanced Modeling: Building attribution models to value touchpoints and propensity models to refine targeting.Audience Optimization: creating customer uplift models to identify incremental value and building audiences that improve marketing efficiency.Marketing Investment Optimization: Steering external advertising platforms and optimizing marketing spend to align with core business objectives.In this particular role, you will collaborate closely with Senior and Principal Applied Scientists within Zalando to ensure that we are making the right investment decisions when it comes to advertising channels. To do so, you will leverage elasticity modeling, forecasting, and mathematical optimization to solve for multi-objective optimization under constraints and uncertainty. WHAT WE’RE LOOKING FORProven track record of independently tackling concrete research problems and autonomously finding a path to a simple and fast solution, before iteration.Have worked on Deep Learning or Linear/Mixed Integer Optimization problems.Advanced coding and packaging skills in Python as well as experience with common big data processing and manipulation tools such as PySpark and SQL.MLops experience: Deploying models to production, writing unit/integration tests, and documentation.Experience in supervising more junior colleagues, as well as fostering organizational knowledge sharing.Good communication skills to translate (even complex) analytical / engineering decisions and outcomes to both peers and a broader, non-technical audience.OUR OFFERZalando provides a range of benefits, here’s an overview of what you can expect. Ask your Talent Acquisition Partner to learn more about what we offer.Employee shares program40% off fashion and beauty products sold and shipped by Zalando, 30% off Zalando Lounge, discounts from external partners2 paid volunteering days a yearHybrid working model with 60% (or more) remote per week, actual practice is up to each team to best support their collaborationWork from abroad for up to 30 working days a year27 days of vacation a year to startRelocation assistance available (subject to prior agreement)Family services, including counseling and supportHealth and wellbeing options (including Gympass)Mental health support and coaching availableDrive your development through our training platform and biannual peer-to-peer reviewLearn all about Zalando and our values here: INCLUSIVE BY DESIGNAt Zalando, our vision is to be inclusive by design. And this vision starts with our hiring - we do not discriminate on the basis of gender identity, sexual orientation, personal expression, ethnicity, religious belief, or disability status. You are welcome to leave out your picture, age, or marital status from your application. We only assess candidates on their qualifications and merit. ​We want to provide you with a great candidate experience. Feel free to inform us of any accommodations you may need, so we can best support you throughout the hiring process. do.BETTER - our diversity & inclusion strategy:Our employee resource groups:Opportunity to work from abroad for 30 (working) days per calendar yearRecruiterShilpa [email protected] note that all applications from this job page must be completed using the online form - we do not accept applications via e-mail. Once reviewed, our recruiters will contact applicants via an official Zalando email address (@zalando.de).In some cases we also work with a selection of headhunters and agencies to fill specific roles. Please note that neither Zalando nor our recruiting partners will ask for any kind of payment to apply for a job or attend an interview.If you have any questions about our recruitment process, please take a look at our .ApplyAbout ZalandoFounded in Berlin in 2008, Zalando is the leading European technology platform for fashion and lifestyle. Connecting 62 million active customers with more than 7,000 brands across 29 markets, our operations are built on a unique AI-powered data and infrastructure platform. For our customers, our multi-app approach - comprising Zalando, ABOUT YOU, and Lounge by Zalando - delivers an inspiring, highly personalized shopping experience, serving different customers with different needs. For our partners, we are building the operating system for e-commerce. Through ZEOS, Tradebyte, and SCAYLE, we open our logistics, software, and service capabilities to brands and retailers, enabling them to seamlessly scale their businesses across borders.Back to job descriptionTHE ROLE & THE TEAMThe Marketing Science team acts as the engine behind Zalando’s growth, partnering with business units across the full marketing funnel. We extend the Zalando experience beyond our platform, connecting customers with the fashion inspiration and shopping convenience they love. By leveraging cutting-edge technology, we ensure our marketing is relevant, engaging, and deeply respectful of customer privacy.We collaborate closely with product managers, engineers, and analysts to refine our industry-leading marketing engine. WHERE YOUR EXPERTISE IS NEEDEDRigorous Experimentation: Establishing the "ground truth" framework for measuring marketing effectiveness.Advanced Modeling: Building attribution models to value touchpoints and propensity models to refine targeting.Audience Optimization: creating customer uplift models to identify incremental value and building audiences that improve marketing efficiency.Marketing Investment Optimization: Steering external advertising platforms and optimizing marketing spend to align with core business objectives.In this particular role, you will collaborate closely with Senior and Principal Applied Scientists within Zalando to ensure that we are making the right investment decisions when it comes to advertising channels. To do so, you will leverage elasticity modeling, forecasting, and mathematical optimization to solve for multi-objective optimization under constraints and uncertainty. WHAT WE’RE LOOKING FORProven track record of independently tackling concrete research problems and autonomously finding a path to a simple and fast solution, before iteration.Have worked on Deep Learning or Linear/Mixed Integer Optimization problems.Advanced coding and packaging skills in Python as well as experience with common big data processing and manipulation tools such as PySpark and SQL.MLops experience: Deploying models to production, writing unit/integration tests, and documentation.Experience in supervising more junior colleagues, as well as fostering organizational knowledge sharing.Good communication skills to translate (even complex) analytical / engineering decisions and outcomes to both peers and a broader, non-technical audience.OUR OFFERZalando provides a range of benefits, here’s an overview of what you can expect. Ask your Talent Acquisition Partner to learn more about what we offer.Employee shares program40% off fashion and beauty products sold and shipped by Zalando, 30% off Zalando Lounge, discounts from external partners2 paid volunteering days a yearHybrid working model with 60% (or more) remote per week, actual practice is up to each team to best support their collaborationWork from abroad for up to 30 working days a year27 days of vacation a year to startRelocation assistance available (subject to prior agreement)Family services, including counseling and supportHealth and wellbeing options (including Gympass)Mental health support and coaching availableDrive your development through our training platform and biannual peer-to-peer reviewLearn all about Zalando and our values here: INCLUSIVE BY DESIGNAt Zalando, our vision is to be inclusive by design. And this vision starts with our hiring - we do not discriminate on the basis of gender identity, sexual orientation, personal expression, ethnicity, religious belief, or disability status. You are welcome to leave out your picture, age, or marital status from your application. We only assess candidates on their qualifications and merit. ​We want to provide you with a great candidate experience. Feel free to inform us of any accommodations you may need, so we can best support you throughout the hiring process. do.BETTER - our diversity & inclusion strategy:Our employee resource groups:Opportunity to work from abroad for 30 (working) days per calendar yearRecruiterShilpa [email protected] note that all applications from this job page must be completed using the online form - we do not accept applications via e-mail. Once reviewed, our recruiters will contact applicants via an official Zalando email address (@zalando.de).In some cases we also work with a selection of headhunters and agencies to fill specific roles. Please note that neither Zalando nor our recruiting partners will ask for any kind of payment to apply for a job or attend an interview.If you have any questions about our recruitment process, please take a look at our .Apply