Data QA Engineer

1 hour, 54 minutes ago
Full-time
Senior
Data Science and Analytics
Dreamix

Dreamix

Dreamix is a trusted bespoke software development company specializing in Java & Oracle technologies, offering quality services for digital product development with a focus on expertise and collaboration.

Internet Software & Services
51-250
Founded 2005

Description

  • Validate end-to-end data pipelines from source systems to data marts.
  • Test batch data loads and verify data ingestion in S3, including file counts, schemas, partitions, and formats.
  • Validate transformations, aggregations, derived metrics, and business KPIs against source systems and definitions.
  • Ensure data completeness, accuracy, and consistency across raw, curated, and reporting layers.
  • Write complex SQL queries to validate fact and dimension tables in Redshift.
  • Validate data models, including fact/dimension structures, keys, and relationships.
  • Perform reconciliation between raw, curated, and reporting layers.
  • Review Glue Job and Lambda execution logs to troubleshoot data issues.
  • Monitor pipeline health, failures, and data refresh SLAs.
  • Act as a quality advocate by defining test strategies and reporting test progress, quality risks, and defect status.

Requirements

  • 5+ years of experience in software quality assurance with a strong focus on manual testing.
  • Hands-on experience testing data pipelines, ETL, or data warehouses.
  • Strong SQL skills, including joins and aggregations.
  • Experience with AWS services such as S3, Glue, Lambda, Step Functions, Redshift, Athena, and CloudWatch.
  • Experience validating structured and semi-structured data formats such as Parquet, JSON, and CSV.
  • Solid understanding of data warehousing concepts and dimensional modeling.
  • Proven experience testing complex web and/or mobile applications.
  • Familiarity with browser developer tools for debugging network, console, and UI issues.
  • Strong understanding of QA methodologies, SDLC, and Agile/Scrum.
  • Excellent test design, defect management, and reporting skills.
  • Experience with Jira, TestRail, or similar tools.
  • Automation skills for writing pipeline tests using a language like Python (nice to have).
  • Experience integrating automated tests into CI/CD pipelines such as Azure DevOps (nice to have).

Benefits

  • Flexible working hours that support work-life balance.
  • Unlimited home office.
  • Opportunities for professional development, including certifications and training.
  • Additional benefits for academic teaching and speaking engagements.
  • Knowledge-sharing sessions with the Dreamix team.
  • Team and company-wide events.
  • Additional health insurance and a dental allowance.
  • Multisport card to support a healthy and active lifestyle.
  • Office massages.

Interested in this position?

Apply directly on the company website

Apply Now

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