Data Engineer Analytics Consultant

The company is 100% owned by the Belgian cable company Telenet (a subsidiary of Liberty Global). Eltrona operates a hybrid fiber-coaxial network that can deliver ultra-high-speed internet to more than 80% of households and businesses in Luxembourg.
The company’s mission is to become the leading alternative internet service provider, significantly increase its market share, and transform into a high-performing telecommunications company.
It is in this context that we are looking for a Full time Data Analyst
The Data Analyst will play a foundational role in building our analytics and data ecosystem from the ground up. This position bridges business needs, analytics, and data engineering, and ensures continuity of existing R and Python-based analytical scripts, while enabling scalable reporting and self-service analytics across departments.

Collect, structure, validate, and analyze internal and external data from multiple sources
Transform raw and fragmented data into clear, reliable, and actionable insights for business stakeholders
Ensure insights are presented in a tangible, concise, and audience-appropriate way to support and influence deci-sion-making
Develop, maintain, and evolve analytics assets using R and Python (existing scripts and new developments)
Design and build dashboards, reports, and KPI frameworks covering metrics requested by all departments
Enable and support self-service analytics while ensuring data consistency and quality
Actively contribute to the definition and implementation of the company’s Data Warehouse, starting from a non-existent or low-maturity state
Collaborate with IT and business teams to define data models, KPIs, metrics, and data quality rules
Automate data preparation, analysis, and reporting processes where relevant
Support management and departments with data-driven analysis and ad-hoc requests
Collaborate closely with the IT Manager and technical teams to align analytics, infrastructure and data strategy.

Strong proficiency in R (mandatory) for data analysis, scripting, and automation
Good knowledge of SQL and structured data querying
Knowing Python for analytics, data processing, and automation is an advantage
Experience with BI and data visualization tools (e.g. Power BI, Tableau, Looker or equivalent)
Strong understanding of data modeling, KPIs, metrics definition, and reporting logic
Ability to design scalable analytics assets aligned with future Data Warehouse architectures
Ability to communicate complex data insights clearly to non-technical audiences
Experience in Business Intelligence, Data Analytics, or Analyt-ics Engineering roles
Hands-on experience with R (mandatory) andknowledge with Python for data analysis
Experience designing and maintaining dashboards, reports,and KPI frameworks
Experience working with multiple, heterogeneous data sources
Experience translating business needs into actionable insights Experience contributing to data foundations or analytics plat-form setups (including early-stage Data Warehouse initia-tives)
Experience collaborating with IT and business stakeholders

Permanent contract (CDI)
Flexible working hours, with the possibility of remote work
Dynamic work atmosphere in a growing company
Meal vouchers
Extra-legal benefits, including a free Eltrona subscription