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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Scientist - **Company:** Bayer SAS - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Microsoft Azure, Cloud Computing, Continuous Integration, Data Governance, Python (Programming Language), Machine Learning, NumPy, Tensorflow, Standard Sql, Management of Software Versions, Data Logging, Pytorch, Large Language Models, Multi-Agent Systems, Prompt Engineering, Apache Spark, Model Validation, Generative AI, Pandas, Git Flow, Scikit Learn, Databricks - **Published:** August 7, 2026 - **Apply:** https://www.buscojobs.com.es/data-scientist-en-barcelona-ID-365275811 ## About the Role * Master's or PhD with 2+ years in Data Science or Applied ML * Strong Python and SQL skills; pandas, NumPy, scikit-learn; PyTorch or TensorFlow a plus * Hands-on with Generative AI: embeddings, prompt engineering, tool calls; agent frameworks (LangChain, LangGraph, PydanticAI) * Experience with vector databases (pgvector) * Solid ML fundamentals: model selection, validation, metrics; time series/forecasting a plus * Experience with offline/online tests, GenAI evaluation, safety checks, LangSmith/Langfuse beneficial * Clear stakeholder communication and ability to influence decisions with data * Basic cloud proficiency (AWS/Azure): storage/compute, Databricks or Spark; CI/CD familiarity * Good engineering hygiene: modular code, testing, documentation, reproducibility * Data governance and privacy awareness * Fluent in English; additional languages a plus ## Description Experteer Overview Join Bayer's Machine Learning u****amp; AI unit to turn complex business questions into measurable AI-driven impact across functions like Finance, Supply Chain, HR, and more.You will combine GenAI with classical ML, lead rigorous experimentation, and deliver production-ready AI solutions on a cloud-native stack.Collaborate with cross-functional partners to drive adoption and scale responsible AI in a global setting.This role offers a chance to shape enterprise AI initiatives and contribute to Bayer's mission of empowering health and sustainability.Compensaciones / Beneficios* Translate business needs into DS problems with clear hypotheses and success metrics* Design, build, and evaluate GenAI solutions (LLMs, agent workflows, embeddings) and classical ML models* Establish rigorous evaluation plans including offline metrics and human-in-the-loop reviews* Develop production-grade Python code with Git workflows, tests, docs, and reproducibility* Monitor data/feature drift, model/prompt versioning, and cost/latency; implement structured logging* Collaborate with Product, Data Engineers, AI Engineers, and stakeholders to drive adoption* Lead workshops and stakeholder storytelling on insights, risks, and trade-offsResponsabilidades* Master's or PhD with 2+ years in Data Science or Applied ML* Strong Python and SQL skills; pandas, NumPy, scikit-learn; PyTorch or TensorFlow a plus* Hands-on with Generative AI: embeddings, prompt engineering, tool calls; agent frameworks (LangChain, LangGraph, PydanticAI)* Experience with vector databases (pgvector)* Solid ML fundamentals: model selection, validation, metrics; time series/forecasting a plus* Experience with offline/online tests, GenAI evaluation, safety checks, LangSmith/Langfuse beneficial* Clear stakeholder communication and ability to influence decisions with data* Basic cloud proficiency (AWS/Azure): storage/compute, Databricks or Spark; CI/CD familiarity* Good engineering hygiene: modular code, testing, documentation, reproducibility* Data governance and privacy awareness* Fluent in English; additional languages a plusRequisitos principales* ## Related Videos - [Advanced Typing in TypeScript](https://www.wearedevelopers.com/videos/496-advanced-typing-in-typescript) - [Vectorize all the things! 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