> Markdown version of [/jobs/ext/2889765-senior-data-engineer-data-lake-modernization-iceberg](https://www.wearedevelopers.com/jobs/ext/2889765-senior-data-engineer-data-lake-modernization-iceberg). 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). --- # Senior Data Engineer: Data Lake Modernization & Iceberg - **Company:** ERNI Swiss Software Engineering - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Apache HTTP Server, Information Engineering, Python (Programming Language), Cloud Services, Software Engineering, SQL Databases, Data Lakes - **Published:** September 13, 2026 - **Apply:** https://www.buscojobs.com.es/senior-data-engineer-data-lake-modernization-iceberg-en-madrid-ID-371683508 ## About the Role 4-6+ years of data engineering experience is preferred. #J-*****-Ljbffr ## Description ERNI - Swiss Software Engineering is seeking a senior Data Engineer to accelerate a cloud-native Data Lake modernization project.You will apply your knowledge of AWS, Apache Iceberg, Python, DuckDB and SQL to enhance scalability, governance, and performance across the platform.As a senior member, you will mentor peers and contribute to onboarding, with a hybrid work model featuring regular office days.4-6+ years of data engineering experience is preferred.#J-*****-Ljbffr ## Related Videos - [Empowering Retail Through Applied Machine Learning](https://www.wearedevelopers.com/videos/976-empowering-retail-through-applied-machine-learning) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Leverage Cloud Computing Benefits with Serverless Multi-Cloud ML ](https://www.wearedevelopers.com/videos/78-leverage-cloud-computing-benefits-with-serverless-multi-cloud-ml) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [The Data Mesh as the end of the Datalake as we know it](https://www.wearedevelopers.com/videos/156-the-data-mesh-as-the-end-of-the-datalake-as-we-know-it) - [A Data Mesh needs Open Metadata](https://www.wearedevelopers.com/videos/505-a-data-mesh-needs-open-metadata) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know) - [Data Analyst Salary in Switzerland](https://www.wearedevelopers.com/magazine/276-data-analyst-salary-in-switzerland) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)