Senior QA Engineer (Native Apps)

Stable American EdTech corporation, market leader since the 1990s, responsible for high-traffic native applications (iOS, Android, Desktop) used by millions worldwide.

• 5+ years in QA, with a strong focus on Native Mobile applications.
• Strong understanding of HTTP, REST API, JSON, and microservices.
• Proficiency with sniffing tools (Charles/Fiddler) and mobile debugging (ADB, Logcat).
• Experience with any automation stack and a willingness to work with Ruby.
• Familiarity with Linux command line and Docker.
• Upper-Intermediate English or higher.

• Perform end-to-end testing of native iOS, Android, and Desktop applications.
• Validate complex client-server interactions, including data synchronization and offline modes.
• Conduct deep-dive debugging using Charles Proxy, Xcode, Android Studio, and Linux CLI.
• Analyze backend logs (Kibana, Grafana) to investigate distributed system issues.
• Maintain and extend the existing automation framework using Ruby and RSpec.
• Collaborate closely with US-based product teams and local developers in an Agile environment.

• Long-term B2B contract with a US-based entity.
• 100% Remote (GMT 0 - GMT+2 zone).
• Russian/Ukrainian for internal communication; English for documentation and syncs with the US office.