> Markdown version of [/jobs/ext/2778989-principal-data-engineer](https://www.wearedevelopers.com/jobs/ext/2778989-principal-data-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Data Engineer

- **Company:** Roche
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Amazon S3, Software Quality, Continuous Integration, Data Architecture, Information Engineering, Data Governance, Data Infrastructure, Data Security, Dimensional Modeling, Python (Programming Language), SQL Databases, Parquet, Apache Spark, IT Architecture, Pyspark, Terraform, Data Pipelines
- **Published:** September 7, 2026
- **Apply:** https://www.buscojobs.com.es/principal-data-engineer-en-barcelona-ID-369866374

## About the Role

Compensaciones / Beneficios * Define and drive the future strategy for GenAI and emerging technologies in diagnostic data analytics * Design, implement, and optimize data architectures using AWS services for performance and integration * Build and optimize data processing workflows with PySpark, SparkSQL, SQL, Iceberg, Parquet * Improve data infrastructure performance, scalability, and cost efficiency on AWS * Provide technical direction and mentorship, enforcing code quality and CI/CD * Collaborate with engineering and business stakeholders to translate requirements into data-driven solutions * Advocate for data security, governance, and regulatory compliance (HIPAA, GDPR) Responsabilidades * 5+ years of hands-on data engineering with leadership in technical projects * Expert-level AWS (S3, Redshift, Glue, Athena, EMR, Step Functions, MWAA) * Mastery of Python, SQL, and Spark * Experience with Dimensional Modeling, Data Partitioning, Terraform (IaC) * Ability to provide
technical direction, architecture guidance, and cross-functional mentoring * Strong communication skills in English; Spanish is a plus * Bachelor's or Master's degree in Engineering Requisitos principales *

## Description

Experteer Overview As Principal Data Engineer at Roche, you will steer GenAI and advanced analytics strategy, shaping data architectures and scalable pipelines for diagnostic products.You lead technically while aligning with product and system architects to deliver high-impact, cost-efficient data initiatives.You will mentor teams, improve data governance and ensure compliant, secure data practices in a healthcare context.This role combines hands-on engineering with strategic leadership to advance Roche's data-driven mission.Compensaciones / Beneficios * Define and drive the future strategy for GenAI and emerging technologies in diagnostic data analytics * Design, implement, and optimize data architectures using AWS services for performance and integration * Build and optimize data processing workflows with PySpark, SparkSQL, SQL, Iceberg, Parquet * Improve data infrastructure performance, scalability, and cost efficiency on AWS * Provide technical direction and mentorship, enforcing code quality and CI/CD * Collaborate with engineering and business stakeholders to translate requirements into data-driven solutions * Advocate for data security, governance, and regulatory compliance (HIPAA, GDPR) Responsabilidades * 5+ years of hands-on data engineering with leadership in technical projects * Expert-level AWS (S3, Redshift, Glue, Athena, EMR, Step Functions, MWAA) * Mastery of Python, SQL, and Spark * Experience with Dimensional Modeling, Data Partitioning, Terraform (IaC) * Ability to provide technical direction, architecture guidance, and cross-functional mentoring * Strong communication skills in English; Spanish is a plus * Bachelor's or Master's degree in Engineering Requisitos principales *


## Related Videos

- [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data)
- [Blueprints for Success: Steering a Global Data & AI Architecture](https://www.wearedevelopers.com/videos/1577-blueprints-for-success-steering-a-global-data-ai-architecture)
- [Parquet, Delta, Iceberg & Ducklake - An introduction for developers](https://www.wearedevelopers.com/videos/100075-parquet-delta-iceberg-ducklake-an-introduction-for-developers)
- [WeAreDevelopers LIVE - CSS is DOOMed](https://www.wearedevelopers.com/videos/1838-wearedevelopers-live-css-is-doomed)
- [Empowering Retail Through Applied Machine Learning](https://www.wearedevelopers.com/videos/976-empowering-retail-through-applied-machine-learning)
- [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail)

## Related Articles

- [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk)
- [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer)