Senior Cloud Data QA Engineer

Hammerjack Pty Ltd; Quezon City; On-site; PHP 1,500,000 - 2,100,000; Full time

Job summary

Hammerjack Pty Ltd is seeking a Cloud Data Testing Engineer to own quality assurance across our data pipeline environment in the Philippines. You will trace data lineage, design test plans for ETL/ELT processes, and write SQL to validate data at rest, ensuring accuracy, consistency, and reliability from ingestion to delivery.

Collaborate with data engineers and developers to define data quality checks, automate testing, and provide clear defect reporting to drive fast resolution and production

Qualifications

• Minimum 5 years in a data engineering role focused on validation of data integration, processing, and transformation.
• Experience designing end-to-end data test plans, automating scripts, and reporting quality metrics.
• Ability to validate data lineage, profiling, and backend verification with SQL.
• Proven experience collaborating with cross-functional teams and communicating defects clearly.
• Strong knowledge of data formats (Parquet/ORC) and data quality checks.

Responsibilities

• Trace data lineage across pipelines to identify failures, transformations, or data loss.
• Design, develop, and execute test plans for ETL/ELT processes and data integration points.
• Write and optimize SQL queries to validate data accuracy and completeness at each stage.
• Collaborate with data engineers and developers to define validation rules throughout the pipeline lifecycle.
• Document defects and data quality issues; drive cross-functional resolution.
• Support automated testing and validation frameworks for ongoing data quality monitoring.
• Provide QA input during design and code review.

Skills

Data testing

SQL proficiency

Test design

QA leadership

Data quality checks

Data lineage

Collaboration

Tools

Python

AWS

Parquet/ORC

Job description

Hammerjack Pty Ltd is seeking a Cloud Data Testing Engineer to own quality assurance across our data pipeline environment in the Philippines. You will trace data lineage, design test plans for ETL/ELT processes, and write SQL to validate data at rest, ensuring accuracy, consistency, and reliability from ingestion to delivery.

Collaborate with data engineers and developers to define data quality checks, automate testing, and provide clear defect reporting to drive fast resolution and production