Data Visualization Engineer

Build. Test. Deliver. Enjoy at Pepco!

About the role

At Pepco, we’re growing fast and building our Tech Hub in Porto to support our business across Europe.

We are looking for a Data Visualization Engineer to join the team. In this role, you will design and sustain a robust Power BI ecosystem that enables reliable, scalable, and secure data-driven decision-making across the organization. This includes developing and maintaining a well-structured semantic data layer, governing the Power BI platform, and delivering high-quality dashboards and reports. The role balances data modeling, BI platform governance, and report development, ensuring that business users have access to trusted data, consistent metrics, and intuitive visualizations. By establishing strong foundations and standards, this position empowers teams to effectively leverage self-service BI while maintaining control, performance, and data integrity.

If you like things simple, practical and with real ownership, you’ll fit right in.

What you’ll be doing

• Semantic Modeling & Data Foundations
  • Design, develop, and maintain scalable semantic models (datasets, data marts) in Power BI
  • Implement best practices in data modeling (star schema, reusable measures, KPI definitions)
  • Ensure consistency and standardization across all reporting layers
• Power BI Governance & Platform Ownership
  • Define and manage Power BI workspace architecture (dev/test/prod separation, naming standards)
  • Govern access control, roles, and permissions, ensuring data security and compliance
  • Establish content lifecycle management (certification, promotion, versioning)
  • Monitor usage, adoption, and performance across the platform
  • Drive governance policies to enable controlled self-service BI
• Dashboard & Report Development
  • Design and build interactive dashboards and reports aligned with business needs
  • Translate complex data into clear, actionable visual insights
  • Apply data visualization best practices (UX, storytelling, usability)
  • Optimize report performance and usability
  • Work closely with stakeholders to iterate and improve reporting solutions
• Collaboration & Leadership
  • Partner with data engineers to ensure high-quality upstream data
  • Support and mentor analysts and report developers
  • Act as a subject matter expert for Power BI across the organization

What we’re looking for

• Bachelor’s degree in Information Systems, Data Management, Computer Science, or a related field. Certification in Microsoft Power BI and Azure is a plus.
• 3+ years of professional experience in Power BI / BI development.
• Strong expertise in Power BI semantic modeling (Tabular models)
• Advanced knowledge of DAX, SQL, and data modeling techniques
• Proven experience with Power BI Service (workspaces, apps, permissions)
• Hands-on experience building dashboards and reports in Power BI
• Experience implementing PBI service governance and access control
• Understanding of data lakes, data warehousing, and data modelling principles.
• Familiarity with version control, CI/CD pipelines, and agile delivery methods.
• Comfortable working in cross-functional product and platform teams.

What we offer

• Hybrid model: 2 days remote / 3 days onsite
• Office based in Porto: 📍 https://maps.app.goo.gl/Nn7hc6uYrmPiT8Fc9
• Competitive salary and annual bonus
• Health insurance from the month after joining
• Meal allowance
• Employee discount in Pepco stores in Portugal
• Learning and development opportunities
• International exposure and collaboration across markets
• A simple, down-to-earth culture where people support each other

About Pepco

Pepco is one of Europe’s fastest-growing retail companies, with thousands of stores and millions of customers visiting us every month. Behind that growth, there’s a team of people who make things happen. We keep things simple, we focus on results, and we support each other to get there. At Pepco, no two days are the same. And that’s exactly how we like it.

Interested? Apply now and be part of building something new in Porto!