Cybersecurity Engineer (RF & IoT Protocols)

Do you want to join a company that places people at the heart of its concerns? We are waiting for you at Extia!

Since 2007, Extia, an IT consulting firm, has been offering a unique approach in its field, combining well-being at work and performance . A successful model: more than 3000 Extians working in 20 agencies in France and abroad, 3rd Great Place To Work® in France.

At Extia, we follow a very simple yet effective philosophy: "First who, then what! " So let’s do it together!?

⚡ First, Who

You are a highly specialized expert in radio frequency security with a strong R&D mindset. You possess deep problem-solving skills, excellent technical documentation abilities, and thrive in environments that bridge the gap between academic research and industrial application.

⚡ Then What

You will spearhead Wireless Security initiatives, focusing on the identification of attack vectors, vulnerability analysis of radio protocols, and the development of advanced defense mechanisms. By leveraging Software Defined Radio (SDR) technologies, you will design, test, and document cutting-edge applications to secure wireless communications and critical infrastructures.

Key Responsibilities

• Conduct R&D activities focused on the cybersecurity of wireless protocols, identifying flaws in signal transmission and data encapsulation.
• Design and develop advanced PoCs (Proof of Concepts) using Software Defined Radio platforms to test the robustness of wireless systems.
• Deconstruct IoT and RF protocols to detect security gaps and implement high-level defense strategies.
• Draft detailed technical documentation and research reports to outline experimental findings and security audit results.

Key Requirements

• Master’s Degree in Telecommunications, Computer Science, or Electronic Engineering (with 3+ years of experience in Wireless Security ) or a PhD in the same fields.
• Hands-on experience in developing security applications on SDR platforms (e.g., GNU Radio) using Python, C, and C++ .
• Strong background in Network Security, Applied Cryptography, and formal protocol analysis tools.
• Proven track record in securing wireless standards (e.g., IoT, Satellite, or Mobile protocols) within either Academia (Research) or the Cybersecurity Industry.
• GAWN (GIAC Assessing and Auditing Wireless Networks) or CWSP (Certified Wireless Security Professional).

Why join Extia?

At Extia, we firmly believe in our motto: “First Who, Then What.” the person comes first, the project comes second.

✨ Real Flexibility – A model adapted to your project and your work-life balance.

Personalized Training Plan – We design your professional evolution roadmap together with you.