Python QA Engineer

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 Python QA Engineer to join our growing team in Argentina!Role – Python QA EngineerLocation – Argentina(Remote)Job Description: Python QA Engineer is responsible for validating backend services, data processing, and calculation logic that power the Nexus application.Unlike UI-focused testing, this role emphasizes end-to-end data validation across services, APIs, and databases, ensuring that complex algorithms and backend workflows produce accurate and reliable results.The QA engineer will work closely with developers, product owners, and data/analysis teams to ensure high-quality delivery in a fast-paced Agile environment.Key ResponsibilitiesTest backend services (e.g., Azure Functions)Validate data flow, calculations, and algorithm outputsPerform API testing (manual + automation)Execute SQL-based data validation across systemsCreate and execute test cases, regression, and defect trackingMaintain Python-based automation and support CI/CD pipelinesMust‐Have Skills Strong attention to detail and analytical thinking with data / algorithm testing experienceProficient in backend and API testingExtensive Experience with Python automation (writing and maintaining tests)Familiarity with API testing tools such as Postman or similarStrong SQL and database validation skillsGood‐to‐Have Azure DevOps CI/CDC# or TypeScriptWhy 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. Work hard and play harder with our flexible and casual culture. Take a break from work and join an employee event, or enjoy the amenities and games provided from one of our Employees Centers.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 You can also find us on LinkedIn: If you like what you have read, send us your resume and let's start talking!