QA Engineer Porto

QA Engineer
Porto
Porto, Porto District, Portugal

Role Overview:
Euronext Market Services is seeking a
Quality Assurance Engineer
to join the
Data Systems team in Porto
. The QA will play a critical role in a major transformation project, migrating our data platform from a centralized data warehouse architecture on Amazon Redshift to a modern lakehouse platform built around
Apache Iceberg
.

The successful candidate will collaborate closely with other QA engineers and developers to:

• Validate the
  functional results
  of new developments.
• Conduct
  data comparison tests
  to identify regressions and discrepancies.
• Ensure high standards of
  data quality
  across the new platform.

Key Responsibilities:

• Design, maintain, and execute test plans
• Validate data consistency, completeness, and performance across legacy and new platforms
• Use testing frameworks to
  enhance data quality checks
  .
• Collaborate with development, data engineering, and QA peers to ensure delivery of reliable, accurate data applications.
• Contribute to the definition of QA best practices within the data platform transformation.
• Identify and report issues, and follow up on resolution.
• Document test cases, results, and QA processes (XRAY , JIRA , Confluence …).

Qualifications & Skills:

• Proven experience as a
  QA Engineer
  with a focus on
  data platforms
  .
• Strong
  SQL skills
  (advanced queries, joins, aggregations, performance checks).
• Hands-on experience validating
  data pipelines and platforms in public cloud environments
  , especially
  AWS
  .
• Experience with CI/CD tools and automation (e. g. , Jenkins, Git
  Lab).

• Solid understanding of
  QA core competencies
  , including:

• System testing
• Non-regression testing
• Test planning & exécution
• Testing strategies

• Experience leveraging QA/testing frameworks for
  data quality assurance
  .

• Experience testing applications using frameworks like
  Apache Airflow, Apache Flink and
  Apache Spark
  is a plus
  .
• Familiarity with
  Python and Java
  Development is a good asset.
• Familiarity with
  Linux
  and
  shell scripting
  is a plus
• Familiarity with
  financial markets
  is a strong advantage, or
  strong motivation
  to learn the
  functional domain
  .
• Good communication skills in English.

We are proud to be an equal opportunity employer.
We do not discriminate against individuals on the basis of race, gender, age, citizenship, religion, sexual orientation, gender identity or expression, disability, or any other legally protected factor. We value the unique talents of all our people, who come from diverse backgrounds with different personal experiences and points of view and we are committed to providing an environment of mutual respect.