Aeronautical Communication System IVVQ Engineer (Mobile) - Defense and Security - Le Plessis Robinson (M/F)

CS LtdHauts-de-SeineEURESpublished 06/12/2026
Must-have:Hybrid
Machine translation — original language: French.Show original

Company Description CS, a subsidiary of Sopra Steria, is a major player in critical systems, present internationally and operating in strategic sectors (defense, space, energy, transport…). The company distinguishes itself through its expertise in real-time, its commitment to R&D, and its ability to support complex projects related to sovereignty and security. Our Defense & Security Business Unit, with more than 840 employees, designs high-value-added systems for the army and civil aviation (anti-drone warfare, surveillance, simulation…). Joining CS means joining an innovative and committed structure, serving the protection of territories and citizens. The agency (Voice Communication Systems) designs, develops, and supports critical, modular, and secure Voice over IP communication systems dedicated to air traffic control for civil or military operations. As one of the leaders in the field, it benefits from the excellence of its VCS product range of radio-telephone-intercom communications on IP architecture, meeting the current and future needs of air traffic controllers.

Job Description We are recruiting for this agency a mobile IVQ Engineer. Under the responsibility of the Integration and Validation Manager, you will participate in the implementation of integration, verification, and validation activities of the system throughout the project. You will work on complex critical systems, in close collaboration with project teams, technical experts, and partners, while respecting quality, security, cost, and deadline requirements.

Your missions:

  • Deploy the system integration and validation strategy
  • Perform system integration (software and/or hardware) in accordance with specifications
  • Prepare, execute, and analyze integration and validation tests
  • Write and maintain associated documentation
  • Ensure requirement traceability and compliance with the V-model
  • Identify and track anomalies in connection with development teams
  • Participate in technical reviews and IVV activity monitoring
  • Apply quality, security, and operational safety processes
  • Intervene during integration, validation, and commissioning phases, in France and internationally

Frequent travel in France and internationally is to be expected. As such, proficiency in spoken and written English is indispensable.

Technical environment:

  • Mastery of VoIP/ToIP communications (SIP, RTP) and the ED-137 standard
  • Test writing and management (TestLink)
  • Anomaly analysis (Wireshark, dedicated tools)
  • Linux environments and distributed systems
  • Knowledge of IP networks, PKI, scripting (Torrent is a plus)

Qualifications With a Master's degree (engineering school or university) in computer science, telecommunications, or civil aviation, you have 3 to 5 years of experience in the integration and validation of complex systems, ideally with a software focus. You stand out by:

  • A good understanding of radio (V/UHF) and IP environments
  • Solid skills in networks, security, and VoIP/ToIP
  • Ease in critical and highly regulated contexts
  • Rigor, analytical spirit, and a strong quality culture
  • Good teamwork spirit and clear communication regarding your activities (progress, tests, anomalies)

Knowledge of air traffic control communication systems would be a real asset.

Additional Information Joining CS Group also means:

  • Training from your arrival & throughout your career: the CS Academy and the Sopra Steria Academy offer training paths specific to your profession and environment (4,400 training days in 2023, 5,700 training days planned for 2024)
  • Access facilities: (Public transport with 50% coverage, private parking for motorists, cyclists, and motorcyclists). Teleworking, if the project allows
  • Health insurance covering your family
  • A works council offering cultural and sporting benefits and discounts on accommodation and transport during your holidays
  • A holiday bonus

The next steps: If your profile matches, you will have an interview with your future manager. Then, an HR interview. And we commit to giving you feedback by telephone.

#CSGROUP #Hiring #IVVQ #VOIP #Systeme #Défense #LI-Hybrid #LI-MC1 https://[www.soprasteria.fr/nous-connaitre/nos-engagements](https://www.soprasteria.fr/nous-connaitre/nos-engagements) An inclusive and committed employer, our company works every day to fight against all forms of discrimination and promote a respectful working environment. This is why, committed to diversity and inclusion, we encourage all applications and all profiles. https://www.soprasteria.fr/nous-connaitre/nos-engagements