Data Visualization & BI Analyst (Power BI/Tableau)

GBL Tech; Portugal; On-site; EUR 35,000 - 55,000; Full time

Job summary

GBL Tech in Portugal is seeking a Data Analyst to transform raw data into actionable insights. You will bridge data engineering and analytics, building reliable visualizations and reports that support business decisions.

You'll handle data preparation, blending multiple sources, and delivering interactive dashboards using Power BI, Tableau, or Qlik, with strong SQL and data quality focus. Opportunity to influence reporting processes and collaborate across teams.

Qualifications

• Bachelor's or Master's degree in Computer Science or a related field.
• Experience in Data Visualization, BI, and ETL processes with dashboard/reporting development.
• Proficiency in at least one BI platform such as Power BI, Tableau, or Qlik.
• Solid SQL knowledge, databases, and data formats like CSV, JSON, XML.

Responsibilities

• Prepare, transform, and cleanse data from diverse sources.
• Design interactive dashboards and reports.
• Connect visualization tools to databases, APIs, and data lakes.
• Collaborate with stakeholders to understand reporting needs and translate them into visuals.
• Identify data quality improvements and optimize reporting processes.

Skills

Data visualization

Data analysis

ETL processes

SQL

Communication

Collaboration

Education

Bachelor's degree

Master's degree

Tools

Power BI

Tableau

Qlik

Power Query

Tableau Prep

Alteryx

Job description

GBL Tech in Portugal is seeking a Data Analyst to transform raw data into actionable insights. You will bridge data engineering and analytics, building reliable visualizations and reports that support business decisions.

You'll handle data preparation, blending multiple sources, and delivering interactive dashboards using Power BI, Tableau, or Qlik, with strong SQL and data quality focus. Opportunity to influence reporting processes and collaborate across teams.