> Markdown version of [/jobs/ext/4005434-developer-c-linux-senior-f-m](https://www.wearedevelopers.com/jobs/ext/4005434-developer-c-linux-senior-f-m). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Developer C Linux Senior F/M - **Company:** Stormshield SA - **Location:** Lille, France (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** C (Programming Language), Unix, C++ (Programming Language), Linux, FreeBSD, Network Security, Vmware - **Published:** October 29, 2026 - **Apply:** https://www.welcometothejungle.com/en/companies/stormshield/jobs/developer-c-linux-senior-f-m_lille ## About the Role Managers of the SNS team, Kévin and Emmanuel are hiring to evolve and maintain our Stormshield Network Security firewall range. We are looking for motivated people with at least 5 years of experience and, ideally, a solid knowledge of TCP/IP networks. ## Description * Reproduce client issues and diagnose them; * Maintain and evolve existing products; * Develop new features within the embedded firmware of our products; * Document the progress of your developments and/or the solution. What is the technical environment? * Technical stack: C, C++, FreeBSD * Ecosystem: Unix * Virtualised environments: VMware