Data Quality and MDM Expert

Mission Overview

Keystone Solutions is seeking a Data Quality and MDM Expert for a consultancy mission at a client site. In this role, you will be part of a dynamic team focused on transforming healthcare data into valuable insights that support policy and medical decisions. You will work with modern technologies including Azure Cloud, Databricks, SQL Server, SSIS, SSAS, and Power BI.

Roles & Responsibilities

• Translate business data quality requirements into effective data validation rules and monitoring processes.
• Analyse and understand data flows from both business and technical perspectives to ensure data quality and fitness for use.
• Define, document, and maintain data quality controls, including technical (syntactic) and business (semantic) validation rules.
• Execute data quality assessments with a validation engine, analyse results, produce quality reports, and coordinate remediation actions with Data Owners and Data Stewards.
• Own, maintain, and monitor the quality, integrity, availability, and lifecycle of reference data assets used across the organization.
• Coordinate and support master data quality monitoring and improvement activities in collaboration with Business Owners and Data Stewards, ensuring data issues are identified, tracked, and remediated.
• Assess new data flows and reference datasets, identify quality improvement opportunities, and contribute to their documentation and governance.
• Configure, maintain, and continuously improve the data validation platform and reference data management solutions.
• Collaborate with business and technical stakeholders to promote data quality best practices and support data governance initiatives.
• Exhibit a willingness to learn and maintain an open-minded approach.

What we offer

An interesting job in the realization of ICT and Data services that has an impact on society, with many advantages: a good work-life balance, flexible working hours within a 70-hour week, the possibility of teleworking (3 days/week), and workspaces organized according to activities.

Technical Skills

• Master's degree in Computer Science or equivalent through experience.
• Minimum 7 years of practical and professional experience in large data teams.
• Minimum 5 years of practical and professional experience in a Data Quality or MDM role.
• Hands-on experience with SQL and DataBricks.
• Prior experience as a data engineer or data functional analyst is a plus.

Profile

• Affinity with Data Quality and good knowledge of MDM (Master Data Management).
• Ability to translate business needs into technical data solutions.
• Can-Do attitude with a strong sense of ownership and autonomy.
• Strong problem-solving, pragmatic approach, and delivery focus.
• Team player with an ability to work in a collaborative spirit within a transversal organization.
• Good communication skills (speaking, reading, writing).
• Mastering both national languages professionally.

Job description summary

The Data Quality & MDM Expert ensures the quality, consistency, and compliance of data by defining, executing, and monitoring data quality controls. He/she also manages and maintains reference and master data (MDM) to ensure their reliability, availability, and integrity across the organization.

Duration: 16/11/2026 - 31/12/2026 2 months • (full time)

Skills required

• Azure DatabricksJunior
• Data Analysis & Data ValidationExpert
• Data Governance & Data StewardshipJunior
• Data quality managementExpert
• Master Data & Reference Data ManagementConfirmed
• Minimum 5 years of practical and professional experience in a Data Quality or MDM role.Confirmed
• Minimum 7 years of practical and professional experience in large data teamsConfirmed
• SQLJunior

Language requirements

• DutchActive knowledge
• EnglishActive knowledge
• FrenchActive knowledge