Senior IT Security Technician

Profile With a Master's degree (Engineering School or University) specializing in Aeronautics, you have at least 2 years of experience in an avionics system or multi-system design office, with good knowledge of the V-cycle process from design to certification. You will be able to highlight your:

• Knowledge of systems in order to define interfaces and monitor the implementation of the chosen design
• Knowledge of the V-cycle process and the documents necessary for its realization
• Coordination and interpersonal skills with a large number of stakeholders (Systems Designers, Certification, Safety, Operational, Pilots, FH)

You must demonstrate autonomy and rigor to successfully carry out your activities. In the DNA of SII, good interpersonal skills and good energy will be an asset for integration into the teams. A good level of written English is required, and you must be comfortable speaking it.

Mission SII Toulouse is looking for Multi-System Function engineers to strengthen its Aeronautical Systems engineering pole. Your mission will be to monitor the V-cycle of complex approach functions (SLS, GLS, RNP, FLS, ...), from design definition to certification. You will participate in:

• Support for design definition and functional requirements (FDD/FRD), in relation with Systems Designers, Air Operations Specialists, Pilots, Safety, Certification...
• The cascading of functional requirements to the concerned systems as well as the implementation of the design
• The preparation of the V-cycle plan (V&V plan)
• The writing of function test procedures (OVV, LTR, FTR...)
• The conduct of tests (simulator) and the monitoring/analysis of "defects/snags"
• The drafting of the function certification dossier (V&V summary, EASA/FAA compliance note) as well as support for certification activities (discussion with EASA) and Safety (SIA/SSA/Safety Notes).

Upon your arrival on the project, you will be accompanied by a tutor for your skill development, and adapted training will be offered to you.

SII Group Who are we? The SII group is at the heart of innovation serving major accounts in various engineering sectors. In 2026, for the 9th consecutive year, SII France obtained the Great Place To Work label. This success is a reflection of our culture based on our desire to offer all our employees a fulfilling work environment for the development of their skills and careers. Joining SII means committing to a collective adventure: Let's Tech Together! This promise represents our common ambition: to build a technological future together, in a framework where experimentation and autonomy are encouraged, where innovations are at the heart of our actions, and where each collaborator finds professional fulfillment and responsibility within an enthusiastic and inclusive collective. As a company with strong human values, we are signatories of the LGBT+ commitment Charter with the Association l'autre Cercle and are a disability-friendly company. Let's Tech Together embodies what we are and what we aspire to be: a dynamic, innovative, and human company. So if these values speak to you, join us!