Data Steward

19-05-2026

Brussels

As a Belgian bank operating in a highly regulated environment, Belfius is
continuously strengthening its data governance and risk data management
capabilities. Regulatory frameworks such as BCBS 239 (Principles for effective Risk
Data Aggregation and Risk Reporting) require high standards of data quality,
ownership, lineage, and control.
To support this ambition, we are looking for a Data Steward who will act as a key
link between the business, risk, and IT, ensuring that critical data used for
regulatory reporting and decision?making is well defined, well governed, and fit
for purpose.

Role Summary
The Data Steward is responsible for ensuring that business data (particularly risk
and finance data relevant to BCBS 239) is properly defined, documented,
governed, and used consistently across the organization.
You will work closely with Business and IT teams to embed strong data
governance practices, monitor and improve data quality, and contribute to the
bank’s overall regulatory compliance and data maturity.

Key Responsibilities
The Data Steward is responsible for ensuring that business?critical data, in
particular risk data used for regulatory and management reporting, is clearly
defined, consistently used, and properly governed across the bank. Acting as the
custodian of business data definitions within assigned data domains, the Data
Steward works closely with Data Owners to define, maintain, and document
business concepts, critical data elements, business rules, and data quality
requirements in line with the bank’s data governance framework.
In order to support the bank’s compliance with BCBS 239, the Data Steward
actively contributes to ensuring that data is accurate, complete, timely, and
traceable from source systems through to risk and regulatory reports. This
includes supporting end?to?end data lineage documentation, ensuring
transparency of data flows, and contributing to internal and regulatory audits by
providing clear explanations of data definitions, controls, and usage.
Through continuous interaction with stakeholders, the Data Steward helps embed
sustainable data governance practices that support sound decision?making and
regulatory compliance.

Required Skills & Experience
The ideal candidate has several years of relevant experience in a banking or
financial services environment, ideally in roles related to data management, data
governance, risk, regulatory reporting, or reporting. Prior exposure to BCBS 239 or
similar regulatory frameworks governing risk data aggregation and reporting is
strongly preferred. Experience with credit risk–related domains, such as IFRS 9
impairment (ECL, Cost of Risk, provisions), Basel capital and RWA frameworks,
and credit risk loan tape data, is considered a strong asset.
The Data Steward demonstrates a solid understanding of banking data,
particularly risk data, and how such data is used in management and regulatory
reporting. They have a good grasp of core data governance concepts, including
data ownership, stewardship, metadata management, critical data elements, data
lineage, and data quality management.
Familiarity with data governance tools, data catalogs, lineage tools, or business
intelligence and reporting platforms is considered an asset.
Strong analytical skills are essential. The successful candidate is structured,
detail?oriented, and capable of working methodically with complex information,
data sets and documentation. They are comfortable taking ownership of topics
within their scope and following through on actions in collaboration with multiple
stakeholders.
Equally important are strong communication and stakeholder management
skills. The Data Steward must be able to clearly explain data concepts, definitions,
and issues to both technical and non?technical audiences, and to act as a bridge
between business, risk, and IT teams. The role requires a collaborative mindset, the
confidence to challenge constructively when data standards are not met, and the
ability to influence without direct hierarchical authority.
Fluency in English is required. A strong knowledge of French and/or Dutch is also
essential. Proficiency in both French and Dutch is considered a significant asset, as
it facilitates interaction with local stakeholders and contributes to clear and
effective communication across the organization

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