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Senior QA engineer (IoT / Embedded & Cloud) at Flipper. Remote Location: London Office. Hi! This is the Flipper team.. We are the creators of . Flipper Zero. — a portable device for tech enthusiasts and engineers. It's a gadget with an awesome community that brings together millions of people around the world.. We are currently developing a new product — the . BUSY Bar. productivity multitool. It's a smart device that helps you stay focused and minimize distractions.. We're looking for a . Senior QA Engineer (IoT / Embedded & Cloud). to design and own test coverage for complex E2E scenarios spanning firmware, cloud services, and mobile applications, ensuring reliable interaction between devices, backend systems, and apps.. 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. Nice-to-haves. 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. What we offer. Choose your work format: office, hybrid, or fully remote from anywhere in the world. You will be provided with all the necessary equipment for a comfortable working environment. Benefits such as VHI, corporate sports, foreign language courses, and therapy sessions. A five-day workweek with a flexible start of the working day