We are looking for meticulous and experienced SAS Testers to support large-scale data and analytics initiatives. The role focuses on validating complex data transformations, ensuring reporting accuracy and delivering high-quality testing across modern and legacy SAS environments, including Big Data platforms.A key objective of this role is to verify that datasets generated by SAS programs executed in a new environment using the Altair compiler are fully consistent with outputs from the existing SAS environment, while maintaining equal or better performance levels. Project information:Work model: Hybrid, 2 days in the office a weekLocation: KrakówContract type: B2B : 140 net per hourProject language: EnglishStart day: ASAP Key responsibilities:Creating, maintaining, and executing test strategies, test plans, and detailed test cases for SAS-based data solutionsPerforming data reconciliation and validation between source systems and target environments to ensure data accuracy and consistencyWorking closely with development teams to understand business and technical requirements and convert them into effective test scenariosExecuting functional, regression, and system tests for SAS programs and ETL workflowsValidating data processing logic by analysing large datasets in Big Data environments such as Hadoop or HiveRecording test outcomes, identifying defects, and preparing clear, structured reports for stakeholdersManaging and monitoring job execution using Control-MSupporting troubleshooting activities and cooperating with cross-functional teams to ensure timely issue resolutionUsing Linux command-line tools and scripting where applicable (not mandatory but highly beneficial)Required skills & experience:Practical knowledge of testing frameworks and structured testing approachesStrong hands-on experience with SAS programming, including:Base SASSAS MacrosSAS SQLSAS Enterprise GuideDI StudioStored ProcessesSCLSAS E-MinerExperience in data validation and reconciliation across multiple systemsSolid understanding of ETL processes, data warehousing concepts, and data quality principlesFamiliarity with test management and defect tracking tools (e.g,. JIRA, HP ALM)Strong analytical mindset with close attention to detailExcellent communication skills and ability to collaborate with technical and business teams Nice to have:Exposure to Altair tools (Workbench, Hub, SLC)Hands-on experience with Big Data technologies such as Hadoop and HiveExperience in the banking or financial services sectorFamiliarity with test automation frameworks used for data validationWhat we offer:Hybrid model from Kraków - 2 days per weekLong-term cooperation on stable, data-intensive projectsOpportunity to work in an international, professional environmentHigh level of autonomy and responsibilityPrivate medical care and MultiSport Card