Data Analyst

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

At GBL Tech, we drive high-impact technology careers through specialization and scale. We operate across critical digital ecosystems — from Fintech to Smart Industry — connecting talent with technically challenging projects and modern stacks.

The Role

We're looking for a Data Analyst to transform raw data into meaningful insights through effective data preparation, business intelligence, and compelling visual storytelling. You'll work at the intersection of data engineering and analytics, helping turn information from multiple sources into clear, reliable, and actionable visualizations that support business decision-making.

Your Mission:

Data Preparation & Quality: Extract, transform, and cleanse data from diverse sources, ensuring accuracy, consistency, and reliability across analytical solutions.

Data Visualization: Design and develop interactive, visually engaging dashboards and reports using tools such as Power BI, Tableau, or Qlik.

Data Integration: Connect visualization platforms to different data sources, including databases, APIs, and data lakes, ensuring efficient and reliable access to information.

Business Intelligence: Collaborate with data analysts and business stakeholders to understand reporting needs and translate business objectives into meaningful visual insights.

Data Transformation: Build and optimise data preparation workflows using tools such as Power Query, Tableau Prep, or Alteryx, supporting efficient and consistent data processing.

Continuous Improvement: Identify opportunities to improve data quality, reporting processes, and visualization techniques while collaborating with multidisciplinary teams.

What We Are Looking For:

Education: A Bachelor's or Master's degree in Computer Science or a related field.

Data Visualization: Previous experience in Data Visualization, Business Intelligence, and ETL processes, with practical knowledge of dashboard and reporting development.

Visualization Tools: Proficiency in at least one BI platform, such as Power BI, Tableau, or Qlik.

Data Preparation: Experience with Power Query, Tableau Prep, Alteryx, or similar tools for data transformation and cleansing.

Data Management: Solid knowledge of SQL, database management systems, and common data formats such as CSV, JSON, and XML.

Collaboration & Autonomy: Ability to adapt to different teams and project environments, work independently, and collaborate effectively with technical and business stakeholders.

Communication: Strong communication skills and an interest in working on international projects, with flexibility to travel when required.

Interested?

If this project speaks to you, or you're looking for a similar challenge, we'd love to hear from you.