Linux Test Engineer | Senior

Flipper Devices Inc; Greater London; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Office London

Equipment provided

VHI

Language courses

Therapy sessions

Flexible start

Job summary

Flipper Devices Inc. in London is seeking a QA Engineer to ensure the quality of Flipper One by combining automated and hands-on hardware testing. You will work closely with the firmware team to build reliable test automation and validate the product on real devices at our London office.

This role offers an office-based setup in Design District, London, with equipment provided and a benefits package including VHI and flexible start times.

Qualifications

• 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.

Responsibilities

• Design, develop, and maintain automated test suites for Flipper One using Python-based testing frameworks.
• Validate firmware and software functionality on real hardware, identifying defects and ensuring reliable product behavior.
• Create and improve test scenarios and test documentation to increase coverage and support the development process.
• Investigate Linux system behavior, collect logs, analyze failures, and help engineers reproduce and resolve issues.

Skills

Linux

Bash scripting

Test automation

Python

Networking (TCP/IP)

Hardware testing

Tools

ModemManager

NetworkManager

mmcli

nmcli

QMI/MBIM

AT commands

Job description

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 QA 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

• Design, develop, and maintain automated test suites for Flipper One using Python-based testing frameworks
• Validate firmware and software functionality on real hardware, identifying defects and ensuring reliable product behavior
• Create and improve test scenarios and test documentation to increase coverage and support the development process
• Investigate Linux system behavior, collect logs, analyze failures, and help engineers reproduce and resolve issues

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.