Demand Data Scientist (all genders)

BESTSECRET is the leading European online destination for premium and luxury off-price fashion. The Group offers its members in 27 countries across Europe a superior brand portfolio complemented by a high-end shopping experience. At the same time, BESTSECRET enables its brand partners to clear overstock at scale with minimum visibility and maximum brand equity protection.

The unique business model is based on its closed character with an invitation-only customer membership, longstanding brand partner and customer relationships, combined with a tech-focused mindset. BESTSECRET has a strong track record of profitable growth over many years. It generated preliminary revenues of approx.

EUR 1,415 million in 2024 and employs around 2,300 people from over 90 nations. The Group draws on a heritage of 100 years in the textile and fashion industry and today is owned by Permira Funds and the founding families Schustermann and Borenstein.Role OverviewWe are looking for a highly analytical and adaptable professional to strengthen our planning and forecasting capabilities. In this role, you will own the development and optimization of forecasting models, improve planning processes for efficiency and accuracy, and provide ad-hoc analyses to support operational decision-making.

Your work will ensure that planning remains closely connected to real business dynamics, bridging strategic foresight with operational insights. Collaboration with the core business units (Markets, Supply, Finance, Onsite and Data) will be your daily business.Location & Work ModelThis position is based in Munich, one of Germany’s most dynamic business hubs. We are looking for a candidate who is either already located in the Munich area or willing to relocate.

The role offers flexibility through a hybrid work model: while regular on-site presence is essential for collaboration and alignment with key stakeholders, remote work is possible for part of the week.Key ResponsibilitiesForecasting & Planning:Enhance and maintain existing Python-based forecasting models to improve accuracy and scalability.Develop robust frameworks for demand and marketing KPI forecasting, including validation and error tracking.Optimize planning and forecasting processes to reduce cycle time and increase reliability, for long and mid-term customer planning as well as our recurring monthly forecasts.Operational AnalyticsConduct ad-hoc analyses to support day-to-day performance management and identify business opportunities.Translate complex data into actionable insights and recommendations for stakeholders across marketing and other business units.Cross-Functional CollaborationAct as an interface between Planning, Marketing, Supply, Markets, and Data teams to ensure alignment between forecasts and business objectives.EducationProfile & RequirementsDegree in Business Analytics, Data Science, Economics, or a related quantitative field.Experience4+ years of experience in forecasting, business planning, or analytics roles.Proven experience in Python-based forecast modelingStrong experience with SQL-driven data analysisExperience in e-commerce industry is a plus.Technical SkillsAdvanced Python skills including data wrangling, statistical modeling, and production-level code development (modular, maintainable, and scalable)Strong understanding of time series modeling techniques (ARIMA, Prophet, gradient boosting, etc.) including feature engineering, model selection and validation, and performance tracking.Advanced SQL for performant data extraction and transformation, experience with dbt is a plus.Familiarity with BI tools (like Power BI) and cloud-based data platforms is a plus.Analytical & Cognitive SkillsExcellent logical and spatial reasoning abilities.Strong problem-solving mindset with the ability to adapt quickly to new challenges.Soft SkillsClear and structured communication with different stakeholder groups.Ability to manage priorities and deliver under time constraints.Team-oriented with willingness to share knowledge and support colleagues.Proficient in English in both oral and written form. At BESTSECRET, diversity isn't just a trend – it's our professional philosophy. We are dedicated to cultivating an inclusive workplace where everyone's unique talents and backgrounds are celebrated.

Applicants from all backgrounds, experiences and perspectives are welcome to join us in our mission towards a more vibrant and inclusive future.