Manual QA Engineer (Data‑Focused)

Are you interested in working with the World’s leading AI-powered Quality Engineering Company? Ready to advance your career, team up with global thought leaders across industries and make a difference every day? Join us at QualityAI!We are looking for a Sr. Manual QA Engineer (Data‑Focused) to join our growing team in Argentina! Location: Argentina (remote)Role SummaryThe Sr. Manual QA Engineer will focus heavily on data validation, test coverage accuracy, and quality assurance across data centric workflows within the client’s application ecosystem.Responsibilities (Rewritten & Data Focused)Perform manual testing of application features, workflows, and data flows to identify defects, inconsistencies, and gaps.Develop and execute test cases and test scripts aligned to User Stories and Acceptance Criteria.Validate data accuracy using SQL queries, ensuring correct transformations, mappings, and end to end data integrity.Document defects clearly in ADO and retest fixes to confirm resolution.Collaborate closely with developers, BAs, and product owners to clarify requirements and ensure alignment on expected data behavior.Conduct regression testing to confirm new changes do not impact existing functionality or data pipelines.Create and maintain test documentation (test plans, test scripts, test results).Ramp up quickly on business domain knowledge and data structures used within the application.Provide input to improve testing processes, especially around data validation, test coverage, and edge case identification.Identify and test edge cases, including data anomalies, boundary conditions, and scenarios not explicitly captured in acceptance criteria.Participate actively in Agile ceremonies (sprint planning, backlog refinement, daily standups).Communicate proactively with stakeholders to clarify requirements, validate assumptions, and ensure test cases align with business and data expectations.Qualifications5+ years of experience as a Manual QA Tester or similar role.Strong understanding of software testing methodologies and QA best practices.Proficiency in SQL, with ability to write, execute, and interpret queries for data validation.Solid analytical and problem solving skills with strong attention to detail, especially in data driven scenarios.Ability to quickly learn new applications, data models, and business processes.Excellent communication and collaboration skills.Experience working in Agile/Scrum environments.Familiarity with ADO Test Plans and defect tracking systems.Why QualityAI?QualityAI is an AI-first quality engineering company helping enterprises deploy and scale complex systems with greater confidence. Operating across data, models, platforms, infrastructure, and operational environments, the company provides assurance and engineering expertise that helps organizations ensure systems perform reliably in real-world conditions.Formerly Qualitest, QualityAI supports global enterprises across regulated and technology-driven industries, combining deep engineering heritage with AI-enabled delivery, operational assurance, and lifecycle expertise to help clients achieve certainty at go-live.Be a part of a company who strives to support for diversity and inclusion in the workplace - we are one, we are many at QualityAI. Celebrate culture, share knowledge with engineers from around the globe, and inspire each other through our differences.Local and global opportunities - we offer you internal rotation and international mobility opportunities to grow your career.Clear view of your career and progression with the company - QualityAI is growing massively (since Jan 2021 - added more than 2000 engineers) and giving you the opportunity to grow with us.Never stop experimenting and learning with QualityAI Tech academy: 3000+ training courses, mentorship programs, technical tribes, sponsored certifications, leadership programs and much more.Earn bonuses via our Client Referral and Employee Referral Program’s. Refer and earn - tap your network for net-worth.If you like what you have read, send us your resume and let’s start talking!Intrigued to find more about us?Visit our website at QualityAI (Formerly Qualitest Group) | World’s Leading AI-First Quality Engineering CompanyLinkedIn: