Linux Test Engineer | Senior

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're building a new product — Flipper One. It's a full-featured ARM-based computer running Linux in a compact form factor, powered by the Rockchip RK3576 SoC. We're looking for a Linux Test Engineer to ensure the quality of Flipper One by combining automated and hands-on hardware testing. You'll work closely with the firmware team to build reliable test automation while validating the product on real devices in our London office. Responsibilities: Validate firmware and software functionality on real hardware, identifying defects and ensuring reliable product behavior Investigate Linux system behavior, collect logs, analyze failures, and help engineers reproduce and resolve issues Design, develop, and maintain test suites for Flipper One using Python-based testing frameworks Requirements: Deep practical experience with Linux: shell, systemd/services, logs, permissions, networking, processes, cron, SSH, package managers Ability to write Bash scripts and use standard Linux tools: grep, awk, sed, curl, journalctl, netstat/ss, top/htop, ps, lsof, tcpdump or similar Understanding of networking stack at TCP/IP level: Ethernet, IP, TCP/UDP, routing, sockets, ports, DNS, DHCP, ARP, MTU, packet loss, retransmissions, latency, timeouts, and connection states Ability to work from our London office, especially during the initial stage of the project Nice-to-haves: Experience with IoT, embedded, networking, telecom, infrastructure, cloud, or device-related systems Experience with tools such as ModemManager, NetworkManager, mmcli, nmcli, QMI/MBIM, or AT commands What we offer: Workplace in our own stand-alone office located in Design District, London, near North Greenwich Station (Jubilee line). 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.