--- title: 'Linux Test Engineer | Senior at Flipper' canonical: 'https://feeny.ai/job/linux-test-engineer-senior-flipper-london-m42hzjx8kq58' type: 'job' last_seen: '2026-09-05' --- # Linux Test Engineer | Senior at Flipper - **Company:** Flipper - **Location:** London, United Kingdom - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-07-14 - **Last confirmed live:** 2026-09-05 - **Apply:** https://jobs.ashbyhq.com/flipper/4a19c452-2ff1-45c4-9c25-a601dcd23ec1 ## Job description Hi! This is the Flipper team. We are the creators of Flipper Zero https://flipper.net — 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 https://blog.flipper.net/flipper-one-we-need-your-help/. 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 https://blog.flipper.net/flipper-one-we-need-your-help/ 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. ## About Flipper ## Company Overview - **One-liner**: Flipper Devices makes Flipper Zero, a portable open-source multi-tool for pentesters, developers, and hardware enthusiasts that can interact with RFID, NFC, sub‑1 GHz radios, and GPIO. - **Entity Type**: Private (Privately Held; no disclosed funding rounds) - **Headquarters**: Claymont, Delaware, United States - **Founded**: 2020 - **Founders**: The company emerged from the Neuron Hackspace in collaboration with industrial design firm Design Heroes; key leaders include CEO Pavlo Zhovner and COO Alexander Kulagin. [linkedin.com](https://www.linkedin.com/company/flipper-devices) ## Core Business - **Primary industry**: Cybersecurity / Hardware Hacking / Consumer Electronics - **Target customers**: B2C (pentesters, hobbyists, geeks) and B2B (security researchers, access control testers) - **Mission**: Create devices that are both functional and fun, turning technical exploration into a game. ## Products & Services - **Flipper Zero**: Portable multi-tool for hacking digital systems – reads, writes, and emulates RFID/NFC tags, captures and replays sub‑1 GHz signals (garage doors, IoT sensors), and provides GPIO pins for hardware debugging. Fully open‑source firmware and customizable via additional apps. [flipper.net](https://flipper.net/) - **Mobile Apps (iOS & Android)**: Companion apps that allow remote control, key sharing, and firmware updates via Bluetooth Low Energy. [github.com](https://github.com/flipperdevices) - **qFlipper Desktop Application**: PC tool for updating Flipper Zero firmware. [github.com](https://github.com/flipperdevices) - **Flipper Application Catalog**: Community‑driven repository of apps that extend the device’s capabilities. [github.com](https://github.com/flipperdevices) ## Market Standing - **Valuation**: Not disclosed - **Key Metric**: Revenue not publicly available; company is self‑funded (bootstrapped). Headcount is reported as 38 on LinkedIn (with +27.7% YoY growth) and as “80 people” on the careers page – likely reflecting rapid growth. [linkedin.com](https://www.linkedin.com/company/flipper-devices) [flipperdevices.com](https://flipperdevices.com/jobs/) - **Notable Investors/Partners**: No external investors disclosed; the company is privately held. - **Growth Signals**: - 27.7% employee growth year‑over‑year (LinkedIn data) - 12,133 LinkedIn followers (+55% yearly) - Active open‑source community: Flipper Zero firmware has 16,206 GitHub stars - Third product currently in development [flipperdevices.com](https://flipperdevices.com/jobs/) ## Competitive Advantages - **Open‑source & customizable**: Full firmware and hardware schematics are open, allowing deep modification and community contributions. - **Unique form factor**: Toy‑like cyber‑dolphin design makes the device approachable and fun, differentiating it from traditional pentesting tools. - **Multi‑protocol support**: Covers 125 kHz LF, 13.56 MHz HF/NFC, sub‑1 GHz (up to 50 m), BLE, and GPIO – all in one compact, battery‑powered device. - **Strong community**: Active Discord, GitHub (123 repos), and app catalog with thousands of contributions. ## Strategic Focus - Launching a third product (details not yet public) [flipperdevices.com](https://flipperdevices.com/jobs/) - Expanding the developer ecosystem via improved documentation, application catalog, and open‑source tooling (e.g., uFBT build tool) - Growing remote‑first team across 12+ countries ## Why Work Here - **Remote‑first culture**: All current job openings are global remote (with one London office role). [flipperdevices.com](https://flipperdevices.com/jobs/) - **Small, passionate team**: Engineers, designers, artists, and researchers united by a love for electronics and art. [linkedin.com](https://www.linkedin.com/company/flipper-devices) - **Open‑source ethos**: Employees contribute to public repos and are encouraged to innovate on hardware/software. - **Perks**: New kitchen area with a living wall at the Claymont HQ; fun, game‑like approach to development. - **Growth trajectory**: Rapidly scaling team (27.7% YoY) and product line, offering early‑stage impact. ## Sources 1. [flipper.net](https://flipper.net/) – Official product page 2. [linkedin.com](https://www.linkedin.com/company/flipper-devices) – Company profile and employee data 3. [flipperdevices.com](https://flipperdevices.com/jobs/) – Careers page (team size and open roles) 4. [flipper.net](https://flipper.net/pages/contacts) – Contact and legal details 5. [github.com](https://github.com/flipperdevices) – Open‑source repositories and stars ## Other roles at Flipper - [Lawyer](https://feeny.ai/job/lawyer-flipper-global-rpgfk4yp3n3b) — Global - [Account Manager](https://feeny.ai/job/account-manager-flipper-global-0ftmfjv4zpq2) — Global - [Technical Project Manager (BUSY Bar)](https://feeny.ai/job/technical-project-manager-busy-bar-flipper-global-ent51vq2jcft) — Global - [Compliance Manager](https://feeny.ai/job/compliance-manager-flipper-china-kwg9k2gdddpr) — China - [Engineering Project Manager](https://feeny.ai/job/engineering-project-manager-flipper-china-97t68kf7fnwy) — China - [Head of Mobile](https://feeny.ai/job/head-of-mobile-flipper-london-1hezdmt5s853) — London, United Kingdom - [Product Owner | Senior](https://feeny.ai/job/product-owner-senior-flipper-global-2j84pncpya5c) — Global