Senior C/C++ Developer F/M
Job Overview
TEAM:
SESCONTRACT:
CDILOCATION:
LyonREMOTE WORK:
3 days per week
Senior C/C++ Developer:
at a glance
Stormshield, the leading French publisher and European reference player in cybersecurity, is a subsidiary of Airbus Defence and Space Cyber Programmes and offers innovative, certified, European‑level‑qualified security products for protecting networks and data. To keep growing, we are looking for a Senior C/C++ Developer.
This person must master native development on Windows, be comfortable with continuous‑integration processes, and actively contribute to code quality and security.
What are the responsibilities of the Senior C/C++ Developer?
Analyse, reproduce and fix incidents reported by support or customers, and manage technical debt;
Design, implement and test new features in modern C++ (resource management, smart‑pointers, STL, constexpr, std::thread, etc.);
Work hand‑in‑hand with Product Owners and Tech Leaders to create functional and technical specifications;
Provide strong expertise to the support team (crash analysis, diagnostic scripts, “how‑to” documentation);
Apply defensive‑programming principles (input validation, buffer limits, encryption, …) in both C and C++;
Participate in pull‑requests, mentor junior developers and spread best practices.
And, as a bonus, depending on your interests:
Optimise our CI pipeline (security‑test deployment, static analysis, build artefacts);
Become an internal trainer, run Tech‑Talks, take part in innovation days…;
Share your favourite domain (reverse engineering, driver development, cryptography, etc.).
What is the technical environment?
Languages: C (C99/C11), C++ (C++ 17/20)
Windows development: Visual Studio 2019‑2026, SDK/WDK, COM, kernel‑mode drivers
Continuous integration: Jenkins, Git, automated pipelines (unit tests, static analysis)
Analysis & debugging: WinDbg, Sysinternals Suite (Process Explorer, Process Monitor, ProcDump…)
Methodologies: Scrum, LeSS, Kanban, TDD, code reviews, defensive programming
Domain focus: endpoint protection, data encryption, access control, EDR
Which team?
You will join the R&D team for Endpoint & Data Security products, made up of roughly 30 people organised in Scrum/LeSS and Kanban (large‑scale agility).

The +
Stormshield
Innovation Time Off
Holiday bonuses, profit‑sharing and participation
Airbus ESOP
Sick child leave
Positive Company certified with two stars
Recruitment process
1
A first conversation with Gauthier, our recruiter, to get to know you and discuss your background.
2
An on‑site interview with Nicolas, who will present the team’s way of working and the vision for the role.
3
A technical interview right after, with part of your future team.
4
A final HR interview with Sylvie.
The commitments Stormshield
Stormshield is committed to creating an inclusive working environment. We welcome all applications, regardless of social or cultural background, age, gender, disability, sexual orientation or religious beliefs.
- Department
- Research and Development
- Role
- Developer C Linux
- Locations
- France - Lyon
- Remote status
- Hybrid
- Employment type
- Contract