Data & BI Specialist

About the role

Costa Navarino is looking for a Data & BI Specialist to join its Finance, Reporting & Analytics team at the Athens headquarters. Reporting to the BI & Analytics Manager, the role combines technical skills with business understanding to turn data into insights, dashboards and reporting solutions. It is a hands-on position covering the full data and BI lifecycle, from data sources and data modelling to integration, analysis and dashboard development.

Key responsibilities

• Partner with Finance and business teams to understand reporting and analytics needs.
• Develop management dashboards, scorecards and KPI reporting solutions.
• Translate business needs into data models and visualizations, and analyze trends, performance and operational metrics.
• Support decision-making with insights and data-driven recommendations.
• Develop SQL queries and data transformations across multiple source systems.
• Design and maintain data models, semantic models and reporting datasets.
• Develop and maintain ETL/ELT processes and data pipelines.
• Work with Microsoft Fabric, Lakehouse, Data Warehouse and Power BI (DAX measures, calculations and KPIs).
• Integrate and consolidate data from enterprise systems and APIs, and monitor data quality and reporting performance.
• Document data models, business rules and reporting logic.

Required profile

• 2-5 years of experience in Data Analytics, Business Intelligence, Reporting or a similar role.
• Strong SQL and relational database skills.
• Experience with Microsoft Fabric and/or modern data platforms.
• Understanding of data modelling, data warehousing and star schema concepts.
• Experience developing dashboards, KPIs and business reporting solutions.
• Ability to work directly with business stakeholders and translate requirements into reporting solutions.

Required skills

• SQL and relational databases
• Power BI development
• Data modelling, data warehousing and star schema
• ETL/ELT processes and data pipelines
• Microsoft Fabric, Lakehouse and DAX (advantageous)
• Azure Data Services (strong advantage); BI and data warehouse migration experience (advantage)

What we offer

• Private medical plan and pension plan contribution.
• Ongoing training and development, and task force assignments at Marriott hotels abroad.
• Use of Costa Navarino facilities and access to the online wellness platform.
• Employee discounts and associate benefits at Marriott hotels worldwide.