Senior Mobile Software Engineer, Quality Engineering

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Mobile Software Engineer, Quality Engineering based in Brazil. This role focuses on advancing mobile quality engineering through automation, developer tooling, and AI-powered approaches to software testing. You will build and evolve comprehensive test automation across native iOS and Android applications, covering the full testing pyramid. The position combines hands-on mobile engineering with test architecture, CI/CD integration, quality measurement, and continuous improvement. You’ll work closely with mobile engineers to design highly testable systems, improve modularity, and strengthen automation coverage for features and releases. The role also involves identifying weaknesses across complex systems, troubleshooting difficult failures, and improving the reliability and signal quality of test suites. Working in a fast-paced, globally distributed environment, you’ll collaborate across Product, Engineering, CI/CD, and Quality Engineering teams to deliver reliable experiences at scale.