Senior Data QA Engineer

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Sonatafy Technology - Mexico

WebsiteLinkedInAll Job Openings

51 - 200 employees

🤝 B2B

🏢 Enterprise

B2B • Enterprise

Sonatafy Technology - Mexico is a nearshore software development firm that provides staff augmentation, fully managed software projects, rapid prototyping, and fractional CTO services. The company supplies pre-vetted full‑stack engineers and specialists in front-end, back-end, mobile, DevOps, QA, database management and UI/UX to help businesses accelerate product development, scale teams quickly, and reduce costs while maintaining time-zone alignment and strong English proficiency. Sonatafy serves startups and enterprise clients across industries such as healthcare, financial services/fintech, SaaS/IT and manufacturing.

📋 Description

• Collaborate with the engineering team to refine work requests in an agile development system • Develop comprehensive test plans and test cases as part of project planning • Provide accurate estimates of effort and duration of QA tasks • Create and maintain automated tests to validate pipeline requirements • Write and optimize SQL queries for automated validations • Build regression suites for critical datasets and dashboards • Create and maintain deterministic test datasets and “golden” expected results • Assist with the verification and recreation of user-reported data issues • File detailed and actionable defect reports • Work collaboratively with engineers to troubleshoot defects • Continuously improve QA processes, frameworks, and tools for data testing and validation • Integrate test automation with deployment and workflow tracking systems • Schedule and manage automated test runs, ensuring execution • Implement data observability checks and alerting • Collect, consolidate, and analyze test and monitoring results • Define and develop key performance indicators (KPIs) for measuring test effectiveness • Manage and prioritize work using the ticketing system • Conduct code reviews of test code and SQL validation logic • Partner with Data Engineering and BI stakeholders • Contribute to technical documentation of processes, tools, workflows, and standards • Mentor other team members by sharing knowledge, conducting training sessions, and providing guidance on best practices.

🎯 Requirements

• Bachelor’s degree in Computer Science, Information Systems /other relevant degree or equivalent professional experience • Demonstrated experience writing automated QA tests, especially for back-end systems without UI • Expert knowledge of relevant languages, such as SQL, Python, JavaScript, and/or C# • Expert knowledge of test automation tools such as Cypress, Great Expectations • Excellent analytical and problem-solving skills with a high level of attention to detail • Strong communication and collaboration skills to work effectively with cross-functional teams • Experience with CI/CD pipelines and version control systems (e.g., Jenkins, Git) • Knowledge of business intelligence tools such as Power BI or Tableau • Understanding of Agile development processes.

🏖️ Benefits

• Competitive compensation • Remote-first lifestyle • Career growth opportunities across industries and technologies