Data Scientist

At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where ,Health for all, Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining ‘impossible’. There are so many reasons to join us. If you’re hungry to build a varied and meaningful career in a community of brilliant and diverse minds to make a real difference, there’s only one choice.

Data Scientist

About the Role

Are you excited to own forecasting solutions from data extraction to production deployment? We're hiring a Senior Data Scientist for the Machine Learning & Artificial Intelligence unit within Bayer's Enterprise Data & Analytics Platform.

This is not a pure modeling role.   You will extract data from source systems, wrangle messy real-world data, build statistical and ML forecast models, engineer production pipelines, evaluate results, present insights to business stakeholders, develop interactive applications, and maintain the entire infrastructure. You'll tackle unstructured problems independently and deliver measurable impact across Finance, Supply Chain, HR, Procurement, and Commercial Operations.

Our international team spans Poland, Germany, Spain, and India. We work with time series forecasting, statistical modeling, data engineering, and interactive analytics on a modern cloud-native stack. If you thrive on end-to-end ownership—from source systems to stakeholder dashboards—and enjoy solving ambiguous business problems with minimal guidance, we want to hear from you.

Key Responsibilities

End-to-End Solution Ownership

Own the complete lifecycle from understanding business needs through production deployment, monitoring, and maintenance

Build robust ETL/ELT pipelines on Databricks; clean, validate, and transform messy real-world data at scale

Transform loosely defined business questions into structured solutions independently—identifying data gaps, proposing approaches, and iterating based on feedback

Forecasting & Modeling

Design and deploy production-grade forecasting solutions using statistical models (ARIMA, ETS, BSTS) and ML approaches (XGBoost, LightGBM, neural networks)

Engineer sophisticated features: lag features, rolling statistics, external signals, calendar effects, and domain-specific transformations

Implement forecast reconciliation and hierarchical aggregation for complex business structures

Establish rigorous evaluation frameworks: backtesting, time series cross-validation, accuracy metrics, prediction intervals, and drift monitoring

Software Engineering & Infrastructure

Write production-grade Python and R code with modular architecture, comprehensive testing, error handling, and documentation

Build and maintain sophisticated R Shiny applications with integrated JavaScript components

Orchestrate ML pipelines using Kubeflow for automated training, validation, deployment, experiment tracking, and model versioning

Manage infrastructure as code: Databricks workspaces, Azure resources, CI/CD pipelines (GitHub Actions, Azure DevOps), containerization, and secrets management

Analysis, Debugging & Monitoring

Troubleshoot complex issues across the full stack: data pipeline failures, model degradation, API errors, and integration problems

Implement continuous monitoring: automated data quality checks, feature drift detection, performance tracking, and alerting systems

Conduct root cause analysis of forecast errors, identify data anomalies, validate business logic, and communicate findings clearly

Required Qualifications

Technical Foundation

Education & Experience: Master's or PhD with 3+ years delivering end-to-end data science solutions in production

Programming: Strong Python, R and SQL proficiency

Forecasting Expertise: Time series decomposition, seasonality, trend analysis, ensemble methods, probabilistic forecasting, hierarchical reconciliation

Data Engineering: Databricks/Spark/PySpark, Delta Lake, ETL/ELT design, job orchestration, performance tuning

KNIME: Building analytical workflows, data preprocessing, model pipelines, and system integration

End-to-End Capabilities

MLOps: Kubeflow pipeline orchestration, experiment tracking, model registry, automated deployment

Software Engineering: Git workflows, code reviews, testing frameworks (pytest, testthat), modular design, documentation

Application Development: Build RESTful APIs and R Shiny applications from scratch; handle authentication, deployment, and optimization

Cloud Infrastructure: Azure services (Databricks, Blob Storage, Data Factory, Key Vault, Functions), container orchestration, CI/CD

Essential Soft Skills

Autonomy: Self-starter who can take vague requirements and independently drive projects from concept to production

Problem-Solving: Systematic debugging across the full stack—from source data to infrastructure

Business Acumen: Translate business needs into technical solutions; understand when "good enough" beats "perfect"

Communication: Present technical work clearly to non-technical audiences; influence decisions with data; write comprehensive documentation

Collaboration: Work effectively with cross-functional teams while maintaining end-to-end ownership

Preferred (Not Required)

SAP HANA/BW experience, advanced Kubeflow capabilities, Terraform, Kubernetes, PowerBI/Tableau integration, data governance frameworks, multilingual capability

Language Requirement:   Fluent in English (written and spoken); additional languages from our team regions are a plus.

YOUR APPLICATION

This is your opportunity to tackle the world’s biggest challenges with us: Maintaining our health, feeding growing populations and slowing the rate of climate change. You have a voice, ideas and perspectives and we want to hear them. Because our success begins with you. Be part of something big. Be Bayer.

Bayer welcomes applications from all individuals, regardless of race, national origin, gender, age, physical characteristics, social origin, disability, union membership, religion, family status, pregnancy, sexual orientation, gender identity, gender expression or any unlawful criterion under applicable law. We are committed to treating all applicants fairly and avoiding discrimination.

Location:

Spain : Cataluña : Barcelona

Division:

Enabling Functions

Reference Code:

870952