Data Analyst

GBL Tech; Lisboa; On-site; EUR 40,000 - 60,000; Full time

Job summary

GBL Tech in Portugal is seeking a Data Analyst to transform raw data into actionable insights, performing data preparation, building BI dashboards, and telling compelling stories with visuals across multiple sources.

You will collaborate with data engineers and business stakeholders, optimize data workflows using Power BI, Tableau, or Qlik, and contribute to scalable analytics across international projects.

Qualifications

• Experience in Data Visualization, BI and ETL processes.
• Proficiency with at least one BI platform (Power BI, Tableau or Qlik).
• Experience with Power Query, Tableau Prep or Alteryx for data transformation.
• Strong SQL skills and familiarity with CSV, JSON, XML formats.
• Excellent collaboration and ability to work with international teams.

Responsibilities

• Data Preparation: Extract, transform, and cleanse data from diverse sources.
• Data Visualization: Design dashboards and reports using Power BI, Tableau, or Qlik.
• Data Integration: Connect visualization platforms to various data sources including APIs and data lakes.
• Business Intelligence: Translate business objectives into meaningful insights with stakeholders.
• Data Transformation: Build data workflows using Power Query, Tableau Prep, or Alteryx.

Skills

Data Visualization

BI & Analytics

ETL processes

Collaboration

Education

Bachelor\'s or Master\'s degree in Computer Science or related field

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.