Job Summary: We are looking for a Senior QA Tester passionate about ensuring the quality and excellence of mobile applications and APIs, focused on identifying defects and improving the product. Key Highlights: 1. Proven experience in API and mobile application QA 2. Collaborative work with development and product teams 3. Continuous improvement of QA processes and agile development **[Tester | Senior]** Remote | 44 hours/week **To learn more about us** We develop people, software & businesses. +15 years of experience developing software across 4 continents with an NPS of +84, placing us in the excellence zone! We specialize in digital solutions (web, mobile, BI, RPA, among others), with offices in São Paulo, Porto Alegre, Belo Horizonte, and the USA. **Opportunity Overview:** * We are seeking a QA Tester passionate about ensuring the quality and excellence of our mobile applications and APIs. The ideal candidate is someone with a strong passion for breaking code to uncover defects and improve product quality, along with a solid understanding of QA principles. **Responsibilities and Duties:** * Design, develop, and execute test cases for mobile applications and APIs; * Collaborate with development and product teams to understand requirements and ensure quality; * Identify, log, and document bugs and inconsistencies; * Contribute to the continuous improvement of QA processes and agile development practices. **Required Skills:** * Proven experience as a QA professional in API and mobile application testing; * Experience with databases (SQL); * Familiarity with BDD; * Familiarity with version control systems (Git) and Azure; * Knowledge of agile methodologies and development frameworks such as Scrum or Kanban; * Ability to work effectively in a team environment, collaborating closely with developers and other stakeholders; * Excellent communication, crisis assessment, and problem-solving skills. **What You’ll Find at GX2:** * Hub of original content segmented by knowledge tracks (AI, QA, Agility, UX/UI Design, Product, Software Development); * Monthly talks focused on soft skills development; * Culture of care for people and mental health; * Mental health and well-being platform; * GX2 Follow Up: Individual monthly check-ins focused on well-being and development. **A Message from GX2:** This position is open to all interested individuals. We work daily to build a diverse and inclusive environment that values and respects differences, and we champion the freedom to be one’s authentic self—free from stereotypes and prejudice.