We are looking for aData Test Engineer (Python & SQL)to join our Client's team under aremotework model.AtHexa Consulting, we are more than an IT consulting company — we are a place where technological talent grows. Based in Portugal, we value transparency and a people-first approach, helping professionals take the next big step in their IT careers. Our mission is to build strong relationships and support the development of every team member. With projects in Nearshore, Time & Material, Service Management, and Tech Academies, you will find opportunities to learn, innovate, and grow in your career.This role is highly technical and sits at the intersection ofsoftware engineering, data engineering, and quality engineering. The main focus is ensuring thecorrectness, reliability, and performance of data-driven systems, where complex SQL analytics power user-facing features. You will work extensively withlarge aggregated datasetspresented directly in the frontend, requiring a high level of confidence in validating business logic implemented in SQL.Key Responsibilities: Design, implement, and evolveautomated testing frameworksusing Python, Robot Framework, and Selenium Build reliableend-to-end and integration testsvalidating frontend behaviour, backend services, and SQL-based analytical results Develop reusabletest utilities and libraries, treating test code as a first-class engineering artefact Ensure test suites aredeterministic, performant, and CI/CD compatible Validatecomplex SQL queries, including multi-table joins, window functions, aggregations, rollups, and derived metrics Design tests that verify the correctness ofanalytical results displayed in the UI Ensure consistency betweenraw data, transformed datasets, and user-facing results Investigate discrepancies between expected and actual results across different data layers Write clean, maintainable code aligned with engineering principles such asClean Code, DRY, KISS, and SOLID Participate incode reviewsfor both production and test code Advocate fortestability in data models, SQL design, APIs, and UI contracts Collaborate closely withSoftware Engineers, Data Engineers, and Product teamsto validate business logic implemented in data transformations Identify risks in analytical calculations and challenge ambiguous metrics or assumptions UseAI-assisted development tools responsiblyto accelerate test development, explore edge cases in SQL logic, and improve code coverageRequired Qualifications: Strong professional experience withPython AdvancedSQL expertise, including testing complex analytical queries and aggregations Hands-on experience withRobot Framework Experience withSeleniumor equivalent browser automation tools Experience testingdata-intensive, user-facing applications Experience working inCI/CD environments Proven background as aSoftware Engineer, Data-focused Test Engineer, or hybrid engineering role Strong understanding of howdata transformations impact user experience Ability to work acrossfrontend, backend, and data layers Fluency inEnglish (C1 level)andPortuguese (C1 level)Nice to Have: Experience testingdata platforms, dashboards, or analytical products Familiarity withdata pipelines or transformation layers Experience validatingproduct metrics and KPIswith stakeholders Experience withperformance testing of SQL-intensive workloadsImportant Note: This isnot a traditional QA or manual testing role. The position is intended for engineers who design testing systems, write production-quality code, and reason deeply aboutdata correctness and analytical logic. You will spend more time designing testing architectures, validating complex SQL logic, and ensuring data integrity than executing manual test cases.Why Join Us? Work Model:Remote Contract Type:Permanent / Employment or B2B, according to preference Health Insurance:Comprehensive coverage for your well-being Continuous Learning:Access to a Udemy Business subscription with thousands of courses and workshops Team Culture:A collaborative, relaxed, and innovative environmentIf you meet the above criteria and are ready for an exciting opportunity in a dynamic environment, send us your CV!