Senior Data Engineer

About the Position

We are looking for a Senior Data Engineer to join our team at flatexDEGIRO SE, the leading and fastest-growing online brokerage platform in Europe. As a Senior Data Engineer, you will be part of a newly forming AI Hub, building the data and application foundation behind scalable AI tools and platforms. Your work will directly shape how enterprise data is accessed, transformed, retrieved, and used to power AI solutions that improve the way our business operates and the way our clients experience our services.

Responsibilities

• Build secure ingestion, transformation, and retrieval pipelines for enterprise data.
• Develop scalable APIs and application components that support AI services and RAG-based solutions.
• Design and maintain data access patterns that are secure, governed, and aligned with compliance requirements.
• Work with structured and unstructured data sources to support retrieval, vector search, and AI application needs.
• Create reusable data components, internal SDK patterns, and technical building blocks for future AI workloads.
• Enable governed access to enterprise data sources in line with security, privacy, and internal control standards.
• Integrate AI services with existing CI/CD, observability, monitoring, and IT control processes.
• Collaborate with AI Engineers, MLOps Engineers, architects, security, IT operations, and business stakeholders.
• Maintain high standards for code quality, automation, performance, and operational resilience.
• Proactively identify ways to improve data availability, retrieval quality, and reusability across AI use cases.
• Actively use AI in your own engineering work to improve productivity, automation, testing, documentation, and delivery speed.

Requirements

• 5 to 8 years of experience in software engineering, data engineering, platform engineering, or a similar technical role.
• Strong hands-on experience with Python and SQL.
• Experience building and delivering services in production environments.
• Strong understanding of APIs, integration patterns, and secure enterprise architecture.
• Familiarity with vector databases, search, retrieval patterns, and RAG-related architectures.
• Experience with CI/CD, containers, observability tooling, and modern engineering practices.
• Good understanding of data governance, access control, security, privacy, and compliance requirements.
• Ability to build reusable components, internal libraries, SDK patterns, or scalable technical foundations.

Nice to Have

• Experience with RAG-based applications or similar AI architectures.
• Familiarity with infrastructure automation and API security.
• Background in financial services, fintech, banking, or another regulated environment.

We Offer

• Promise of a good work-life balance.
• 30 days paid leave.
• An enthusiastic and fun team to work with.
• Personal and professional development with access to relevant courses.
• Transport allowance or related benefits like a leased electric bike.
• Pension plan.
• A challenging job in an international and fast-growing company.
• A competitive salary.
• A lot of freedom executing your role and a chance to shape your own career.
• The opportunity to participate in a new, enthusiastic team of likeminded professionals.

About the Company

flatexDEGIRO SE operates the leading and fastest-growing online brokerage platform in Europe. Based on modern, in-house state-of-the-art technology, customers of the flatex and DEGIRO brands are offered a wide range of independent products with execution on top TIER 1 exchanges. The technological edge, high efficiency, and strong economies of scale enable us to continuously improve our service offering for clients and to set leading standards in terms of product, price, and platform quality.

With more than 3.5 million customer accounts and more than 75 million securities transactions processed in 2025, flatexDEGIRO is the largest retail online broker in Europe. In times of bank consolidation, growing digitalization, and the immanent need of millions of Europeans to take their financial future into their own hands, flatexDEGIRO is ideally positioned for further profitable growth.

Want to know what it’s like to work for flatexDEGIRO?

Check out our Instagram @lifeatflatexdegiro and meet the great people that make us who we are! Do you already see yourself as part of this team? Apply now!

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flatexDEGIRO Dutch Branch

Petar Patev

Corporate Recruiter