Senior QA engineer (IoT / Embedded & Cloud)

Flipper creates connected products including Flipper Zero and the BUSY Bar productivity multitool. The Senior QA Engineer will design and own end-to-end test coverage across firmware, cloud services, and mobile applications, testing device interactions, APIs, connectivity, data consistency, and system reliability.

Responsibilities:

• Design E2E test coverage across firmware, cloud, and mobile applications to verify device state, data consistency, and end-to-end behavior
• Test device-to-cloud communication, including network failures, reconnections, timeouts, offline operation, and OTA update and rollback scenarios
• Test cloud and local APIs, business logic, data validation, and error handling to ensure reliable behavior across integration scenarios
• Analyze device and cloud logs to diagnose issues, verify command execution, and identify anomalies across system components
• Build test data and configuration strategies for different device types, users, environments, and complex scenarios involving multiple devices
• Identify and prioritize E2E scenarios for automation, define test specifications for automation engineers, and maintain stable smoke and regression testing processes

Requirements:

• Strong QA experience with complex software products and the ability to design test coverage across firmware, backend APIs, and mobile applications
• Strong requirements analysis and systems thinking, with the ability to identify dependencies and integration points across devices, cloud services, and applications
• Hands-on experience testing REST or gRPC APIs using tools such as Postman, Swagger, or existing automated tests
• Experience analyzing device logs such as UART or syslog and cloud logs using tools such as Kibana or Sentry, with a basic understanding of embedded systems architecture
• Experience testing native or cross-platform mobile applications that interact with devices via BLE or Wi-Fi and cloud services
• Experience working in Agile/Scrum environments, building QA processes, managing test artifacts in Jira, Confluence, TestRail, Qase, or TestOps, and defining scenarios for test automation
• English proficiency sufficient for reading technical documentation and communicating with an international team
• Experience testing IoT or smart devices, including OTA updates, connectivity loss and recovery, and offline operation
• Basic Python or JavaScript skills for creating simple test utilities, generating test data, parsing logs, or understanding automated tests
• Experience with device simulators or emulators, network traffic analysis tools such as Wireshark or tcpdump, or security testing of device-to-cloud integrations