Job Description

Data Tech Lead

Join Medi-Market Group and help shape the future of health and well-being

About Medi-Market:

Since 2014, Medi-Market has established itself as a key player in health and well-being in Belgium, Luxembourg, the Netherlands, Italy, and Spain. Our mission is clear: to make high-quality expertise accessible to everyone at the fairest price.

Our strengths

A unique omnichannel ecosystem, made up of more than 180 points of sale (parapharmacies, pharmacies, institutes) and two high-performing webshops, enabling us to offer our customers a seamless, modern, and consistent experience.

A community of more than 2,000 passionate and committed employees, driven by the desire to innovate, learn, and improve the daily lives of millions of people.

A fast-growing company that continuously rethinks the standards of health retail and aims to become a European leader in the sector.

Why join us?

Because Medi-Market is much more than a company: it is a young, ambitious, and constantly evolving group where every talent can have a real impact. We are strengthening our digital capabilities, deepening our expertise, and launching innovative projects to shape the future of the health and well-being market.

Joining Medi-Market means taking part in an exciting human and entrepreneurial adventure, serving a mission that truly makes sense.

Role & Responsibilities

Our retail operations generate millions of data points daily. Your mission is to evolve our "functional medallion-oriented" platform into a state-of-the-art Data & AI ecosystem with en enhanced Data Security Framework (RBAC + RLS + OLS). You will be the bridge between our business goals and technical execution, ensuring our pipelines are robust, our costs are optimized, and our AI capabilities are production-ready.

You will lead the technical transformation of our data platform from a monolithic "all-in-one" structure to a modern, domain-driven Lakehouse.

Main duties

You will own

• A Modern Data Architecture: Design and oversee the transition to a highly resilient Architecture using Databricks Lakeflow Spark Declarative Pipelines (SDP, ex-DLT) and Unity Catalog. Transition our 5-hour data load into a split, orchestrated, and parallelized process to ensure data is available much earlier than today.

• The Establishment of a Centralized DAX Repository to synchronize calculations across multiple semantic models, ending the "measure overload" of 1,200+ unmanaged measures.

• The Implementation of an Application Lifecycle Management (ALM) with distinct DEV, UAT, and PROD environments to stop the practice of "hotfixing" directly in production.

• FinOps & Cloud Cost Management: Implement rigorous cost-management frameworks within Azure and Databricks to ensure our scaling is sustainable and ROI-focused.

• AI & ML Ops: Lead the deployment of LLMs and predictive models using Mosaic AI, ensuring we move from "cool prototypes" to "scalable business value."

• Engineering Excellence: Set the bar for CI/CD, automated monitoring (Data Quality/Observability), and infrastructure-as-code (Terraform) across the team.

• Data Governance: Champion the rollout of a Data Governance framework utilizing Databricks Unity Catalog. You will enforce strict RBAC, Row-Level Security (RLS), and Object-Level Security (OLS), while automating PII protection and data masking across domain-driven data products.

• Mentorship: Lead a team of Data Engineers, fostering a culture of high-quality code and proactive problem-solving.

Main Competencies

• Expert-level proficiency in Databricks (PySpark, SQL, Mosaic, SDP, Unity Catalog).

• Deep experience in Azure Cloud (Data Factory, ADLS Gen2, Azure DevOps).

• Hands-on experience with MLflow, Model Serving, and integrating GenAI/LLMs into retail use cases.

• Experience with Data Observability tools (e.g., Monte Carlo, Soda) and FinOps dashboards.

• A solid understanding of how to structure data for high-performance Power BI reporting.

• DevOps/ALM: Proficiency in Git-based workflows, Databricks Asset Bundles (DAB), and deployment pipelines.

• Security Mindset: Proven track record of implementing PII protection, Data Masking, and Privileged Identity Management (PIM).

• Collaboration

• Optimism

• Transparency

Profile :

• A minimum of 8 years of proven experience in a similair field

• Bachelor's or Master's degree in Civil Engineering or Information Technology

• Fluency in French and English

• Scope of the Role : Group-level

What we offer

• A permanent contract with a competitive salary package, including 5 additional leave days, group insurance, hospitalization insurance, meal vouchers, and access to a wellness app.
• A modern, pleasant, dynamic, and supportive working environment where your development is a priority.
• Comprehensive and practical training on our tools, methods, and processes to help you quickly build your skills.
• Real challenges within a fast-growing Belgian company with international reach, offering numerous opportunities for career development and progression.
• Flexible hybrid working arrangements, ensuring a healthy balance between on-site presence and remote work.

Ready to take on the challenge?

Join the Medi-Market adventure and help make health and well-being accessible to everyone!