Senior Power BI Developer | Hybrid (Lisbon/Porto)

Extia Group; Porto; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

Extia Group in Portugal is seeking a Senior Power BI Developer to design, develop, and maintain enterprise-scale dashboards and data models across multiple source systems. You will write complex SQL, optimize performance, and implement dynamic date parameters.

You will lead technical reviews, mentor junior developers, and ensure data accuracy and governance within Power BI ecosystems, including DAX calculations, RLS, gateways, and workspace administration.

Qualifications

• 8+ years of professional experience in BI/Data Analytics with a focus on Microsoft BI stack.
• Proven expertise in Power BI, dashboard development, data modeling, and Service administration.
• Advanced SQL skills with complex queries, subqueries, CTEs, JOINs, and aggregations.
• Experience with dynamic SQL queries for historical data extraction and time-series logic.
• Strong DAX capabilities including time intelligence and complex measures.
• Knowledge of governance: gateways, RLS, and workspace management.
• Proven leadership abilities: mentoring, code reviews, and best-practices.
• Microsoft Certified: Power BI Data Analyst Associate (PL-300) is a strong plus.

Responsibilities

• Design, develop, and maintain enterprise-level Power BI dashboards, reports, and data models across multiple source systems.
• Write, debug, and optimize complex SQL queries for data extraction and transformation.
• Develop dynamic SQL for historical data extraction and time-series analysis.
• Integrate SQL queries into Power BI using dynamic parameters to optimize data loads.
• Develop and optimize advanced DAX calculations and measures.
• Monitor and optimize Power BI reports, dashboards, and performance; improve refresh times.
• Manage the Power BI environment: Desktop, Service, gateways, RLS, and workspaces.
• Provide technical leadership, conduct code reviews, and promote best practices.
• Mentor junior/mid-level developers and foster knowledge sharing.

Skills

Power BI

SQL

DAX

Dynamic SQL

Time intelligence

Gateways & RLS

Data modeling

Leadership

English fluency

Tools

Power BI Desktop & Service

Gateway configurations

Row-Level Security

Job description

Extia Group in Portugal is seeking a Senior Power BI Developer to design, develop, and maintain enterprise-scale dashboards and data models across multiple source systems. You will write complex SQL, optimize performance, and implement dynamic date parameters.

You will lead technical reviews, mentor junior developers, and ensure data accuracy and governance within Power BI ecosystems, including DAX calculations, RLS, gateways, and workspace administration.