STEP UP est une société d'ingénierie experte en pilotage de projets industriels et informatiques (+ 250 collaborateurs sur 11 agences en France), plaçant le potentiel humain comme 1er vecteur d'excellence et de performance en entreprise. Oubliez les sociétés d'ingénierie qui ne valorisent que vos seules compétences, chez STEP UP, nous visons également l'adéquation entre votre personnalité et la culture d'entreprise de nos clients. Cela se traduit pour vous par une différence fondamentale en termes de bien être, d'épanouissement au travail et de succès dans vos missions. Ce que nous vous proposons : - Un cadre de travail épanouissant, stimulant et collaboratif, nous sommes certifiés entreprise où il fait bon vivre ! - Des projets innovants et variés. - La possibilité de se perfectionner continuellement avec des formations internes. - Des perspectives d'évolution de carrière. - Un accompagnement individualisé avec un programme de développement du potentiel humain. - Un programme de cooptation. Et bien sûr, nous prenons en charge 70% de votre mutuelle santé et encourageons financièrement la mobilité douce. Le poste : - Composite Stress Analysis Engineer - Aircraft Cabin Interiors (M/F) Île-de-France, France Oise Senior-Level Role - Cabin Interiors Only Visa Sponsorship Available Important Notice: This role is strictly limited to candidates with experience in cabin interior structures (e.g., seating, linings, monuments, composite panels). Primary structure (fuselage, wings, etc.) experience is not relevant for this project. Are you an expert in composite stress analysis with a strong background in aircraft interiors' Do you speak French fluently and feel confident working in a bilingual, high-expectation aerospace environment? Join a strategic international program at the heart of innovation. Your Role You will work closely with design and certification teams to ensure the structural integrity of cabin interior composite components, focusing on performance, weight optimization, and regulatory compliance. - Key Responsibilities: Perform static, fatigue, and damage tolerance analysis (F&DT) for composite cabin components: seat structures, linings, partitions, attachments, etc. Develop and validate finite element models (FEM) using industry-standard software Ensure compliance with CS/FAR 25 structural regulations Support design optimization for strength, weight, cost, and manufacturability Review and approve engineering drawings and stress reports Correlate analysis with test results and contribute to test planning Work in collaboration with certification, manufacturing, and quality teams Profil recherché : Your Profile Required experience: 3+ years in composite stress analysis for aircraft cabin interior structures (internships or apprenticeships are not considered) Proven work on seating structures, monuments, linings, composite panels within aircraft interiors Technical skills: Proficiency in NASTRAN, PATRAN, HyperMesh Deep understanding of composite behavior, failure modes, and material optimization Familiar with certification standards (CS25 / FAR 25) Understanding of aerospace interior manufacturing processes Languages: French: professional working level is mandatory English: fluent written and spoken Visa sponsorship: Available for qualified candidates who meet technical and language requirements Why STEP UP? At STEP UP, we believe that personal development is the foundation of professional excellence. Our founder Stéphane CAMPO created MindSteps, a unique development program to help our talents grow both personally and professionally. Please include your salary expectations with your application to help us respond efficiently. Ready to contribute to a world-class aerospace interior program in France? Apply now - let's build something extraordinary together. #WeAreStepUp #StepUpParis #CompositeStressEngineer #CabinInteriors #AerospaceJobs #CS25 #FEM #NASTRAN #VisaSponsorship #MindSteps