EuroHUB Senior Data Engineer 100% (f/m/d)

Bank Julius Bär & Co. Ltd.; Madrid; On-site; EUR 90,000 - 140,000; Full time

Job summary

Julius Baer is seeking a Senior Data Engineer in Madrid to lead SQL-driven data transformations, data modelling, and governance. You will collaborate with finance, risk, and business teams to deliver reliable datasets for analytics, reporting, and regulatory needs.

The role emphasizes data pipelines, Python automation, and BI enablement using Tableau/Power BI, with a strong banking or financial services background desirable. Fluent English is required.

Qualifications

• Expert level SQL with complex queries and tuning.
• Experience with enterprise data models (Data Vault, 3NF, dimensional).
• Minimum 5+ years in data engineering or SQL-heavy backend roles.
• Experience in banking, financial services, or regulated environments.
• English fluent (written and spoken).

Responsibilities

• Develop and optimize complex SQL transformations for analytics, reporting, and regulatory needs.
• Work with enterprise data models (Data Vault, dimensional, 3NF, SCD).
• Ensure SQL is performant, maintainable, and well documented.
• Build and maintain SQL-driven ETL/ELT data pipelines; use Python for automation when beneficial.
• Support BI enablement with dashboards and data prep for BI tools.
• Collaborate with finance, risk, and business teams to translate requirements into data solutions.
• Operate SQL workloads in production with monitoring and governance.

Skills

SQL

Python

BI tools

Stakeholder engagement

English fluency

Agile

Education

Bachelor’s or Master’s degree in a relevant field

Tools

Tableau

Power BI

Temenos T24/Transact

Job description

At Julius Baer, we celebrate and value the individual qualities you bring, enabling you to be impactful, to be entrepreneurial, to be empowered, and to create value beyond wealth. Let’s shape the future of wealth management together.

Senior Data Engineer brings deep expertise in SQL development, data modelling, and stakeholder collaboration to deliver high quality, reliable, and business critical datasets. The role centers on building and optimizing SQL driven data transformations, supporting analytical, operational, and regulatory reporting needs. Experience in banking or financial environments is a strong advantage. Python knowledge and BI tool experience (e.g., Tableau, Power BI) are valuable pluses that support automation, data preparation, and efficient analytics delivery.

Your Challenge

SQL Development & Data Modelling

• Develop and optimize complex SQL transformations supporting analytics, reporting, and financial/regulatory needs
• Work with and contribute to existing enterprise data models (Data Vault, dimensional, 3NF, domain driven structures)
• Ensure SQL logic is performant, maintainable, and aligned with modelling standards
• Implement and maintain data quality checks, validation rules, and SQL testing
• Maintain clear documentation, lineage, and metadata to support transparency and governance
• Support reduction of architectural debt and help maintain a clean, consistent data environment

Data Pipelines & Integration Engineering

• Build and maintain SQL centric ETL/ELT data pipelines
• Use Python where beneficial for automation, API integration, or workflow efficiency
• Implement ingestion patterns for batch, incremental, and near real time data flows
• Ensure monitoring, observability, and reliable operation of data workflows

Business Intelligence Enablement

• Experience with Tableau or other BI tools is a strong plus, especially for:
  • Structuring SQL datasets optimized for BI consumption
  • Supporting data preparation, extract logic, and backend performance
  • Assisting dashboard/report designers with troubleshooting, prototyping, and governance

Cross Functional Collaboration

• Partner with finance, risk, compliance, and business teams to translate requirements into high quality data solutions
• Work closely with data architects to ensure alignment with modelling standards
• Support troubleshooting across ingestion, modelling, and operational processes
• Contribute to platform evolution, engineering improvements, and roadmap initiatives
• Communicate effectively with both technical and business stakeholders

Data Platform & Operational Excellence

• Collaborate with platform and infrastructure teams to operate SQL workloads reliably in production
• Apply engineering best practices: version control, documentation, testing, code quality

Your Profile

• Expert level SQL (complex queries, tuning, optimization)
• Experience working with and extending established data models (Data Vault, dimensional, SCD, 3NF)
• Strong experience developing scalable SQL driven transformations
• Python is a strong plus for automation, API integrations, and workflow enhancement
• Experience with Tableau, Power BI, or other BI tools is a strong plus
• Experience working in banking, financial services, or regulated environments is a strong advantage
• Commitment to building reliable, maintainable, and well tested data solutions
• Strong focus on quality, monitoring, reliability, and automation
• Ownership mentality across the data lifecycle
• Ability to refine requirements and collaborate with technical and business teams
• Creative, proactive, and improvement oriented approach
• Strong communication and stakeholder engagement abilities
• Analytical, detail oriented, and proactive problem solver
• Comfortable in agile, iterative delivery environments
• Bachelor’s or Master’s degree in a relevant field
• 5+ years in data engineering or SQL heavy backend roles
• Proven experience working with structured enterprise data models
• Experience in finance or banking is a strong advantage
• English: fluent (written and spoken)

Nice to have

• Experience with Temenos T24/Transact, Temenos Triple'A, or similar core banking platforms

Why join Julius Baer?

The international reference in wealth management Julius Baer is the leading Swiss wealth management group. We focus on servicing and advising sophisticated private clients from around the world, taking into account what truly matters to them - in their business and personal life, today and for future generations.

Headquartered in Zurich, we are present in around 60 locations worldwide, including Bangkok, Dubai, Dublin, Frankfurt, Geneva, Hong Kong, London, Luxembourg, Madrid, Mexico City, Milan, Monaco, Mumbai, Santiago de Chile, Shanghai, Singapore, Tel Aviv, and Tokyo.

At Julius Baer our employees enjoy the benefits of a global company with the support and collegiality of a much smaller one. We are growing quickly, but we remain dedicated to maintaining our accessible structure with flat hierarchies, and approachable and supportive leaders. With offices around the world, we offer an international and stimulating work environment and the opportunity to work with a diverse team of highly motivated colleagues, bringing the best of the bank to our clients.

Our core values of Care, Passion, and Excellence define the tone of how we interact with each other and our partners.

Committed to your success Whether nurturing young talent with our renowned apprentice scheme, enabling ambitious university graduates to put theory into practice with our Graduate Programme, or providing first-class opportunities for experienced professionals, we look after our employees. We believe in continuous learning as a company and as individuals, which is why we put a focus on the health and well-being of our employees and offer flexible working options, a wide array of benefits, and extensive career development programmes.

For more information visit www.juliusbaer.com or contact us via the Contact Form.