Senior Data Engineer - ODS Country: Spain

Open Digital Services is the software development company of Santander Group powering the next generation of banks by creating innovative banking products and implementing them in collaboration with Santander Group Affiliates. Santander Group is one of the world's largest financial institutions and the Eurozone's leader, we're committed to being the best Digital Bank with Branches in the industry. Our mission at ODS is to design and support an advanced digital and omnichannel platform, ensuring the best customer experience using cutting-edge technology. Openbank, our flagship partner, is where we develop our most advanced concepts first. Be part of our Best-in-Class team and help us create unique value for our customers!

THE DIFFERENCE YOU MAKE

As a Senior Data Engineer within the Data Management department, you will design, build and optimize scalable data solutions that support analytics, machine learning, reporting and business-critical decision-making. You will work with large and complex data environments, developing robust data pipelines and distributed processing solutions using Spark-based technologies.

- Designing, developing and optimizing large-scale data pipelines using Apache Spark and Scala.
- Building and maintaining batch and near-real-time data processing solutions for high-volume data environments.
- Creating reliable, reusable and well-structured datasets consumed by Analytics, Data Science, Machine Learning and business teams.
- Working with cloud data platforms (AWS), to process, transform, store and expose data efficiently.
- Implementing data quality, validation, monitoring and documentation practices across data pipelines.
- Collaborating with Data Engineering, Data Science, Machine Learning, Architecture and business teams to understand requirements and deliver practical data solutions.
- Contributing to engineering best practices around code quality, testing, version control, CI/CD and automation.

WHAT YOU’LL BRING

Professional Experience





- 5+ years of experience in Data Engineering, Big Data Engineering, or similar technical roles.
- Required Experience building production-grade data pipelines in large-scale or complex data environments.
- Required 5+ years of hands‑on experience working with Spark in real projects with Scala.
- Required Experience working with cloud data platforms.
- Required Experience in banking, fintech or regulated environments.

Preferred Language

- Fluent Spanish.

Preferred Professional English

- Preferred Professional English.

Required Hard Skills

- Strong experience with Spark-based distributed processing.
- Strong Scala coding skills for data engineering use cases.
- Solid SQL knowledge and experience working with relational and analytical databases.
- Experience designing and optimizing ETL/ELT processes.
- Experience with AWS or similar cloud ecosystems; ideally S3, Glue, Athena, EMR, Redshift, IAM or Lake Formation.
- Experience with Git and collaborative software development practices.
- Understanding of data quality, validation, monitoring and performance optimization.
- Experience with CI/CD or DevOps tools such as Jenkins, Sonar, Nexus, Jira, Splunk or similar.
- Preferred Experience with Apache Flink, Spark Streaming or near-real-time applications.
- Preferred Experience with Apache Iceberg, Delta Lake or modern lakehouse formats.
- Preferred Experience with Airflow or workflow orchestration tools.

Preferred Soft Skills

- Strong problem-solving skills and ability to work autonomously.
- Required Ownership mindset and focus on building reliable, maintainable solutions.




- Required Ability to communicate clearly with technical and non‑technical stakeholders.
- Required Collaborative approach and ability to work across Data Engineering, Data Science, ML and business teams.
- Required Curiosity and willingness to learn new tools, frameworks and cloud services.

Open Digital Services is an equal opportunity employer. All applicants will be considered as equal without paying attention to gender identity, sexual orientation, ethnicity, religion, age, political orientation, union membership nor disability status. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify, and build.

The personal data you provide as well as any data generated during the selection process are confidential and will be processed by Open Digital Services, S.L. with registered office at Plaza de Santa Bárbara 2, 28004 (Madrid), Madrid, Spain for the sole purpose of managing your participation in the selection processes and, where appropriate, to formalise your recruitment. For further information about your rights and data protection, please read the Open Digital Services Privacy Policy applicable to this type of data processing here.

The Santander Way

Santander is evolving from a general, high-impact brand into a technology-driven organization, and our people are at the heart of this journey. Together, we are driving a customer-centric transformation that values bold thinking, innovation, and the courage to challenge what’s possible. This is more than a strategic shift. It’s a chance for driven professionals to grow, learn, and make a real difference. Our mission is to contribute to help more people and businesses prosper. We embrace a strong risk culture and all our professionals at all levels are expected to take a proactive and responsible approach toward risk management. Ready to make it happen? It starts with you. It starts here.

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📌 Senior Data Engineer - Spark/Scala & AWS Data Pipelines (España)
🏢 Banco Santander
📍 España