{"id":4162205,"url":"https://alion.io/job/thales-group-numerical-simulation-engineer","title":"Numerical Simulation Engineer","company":{"id":143,"name":"Thales Group","domain":"thalesgroup.com","url":"https://alion.io/company/thales","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":263,"ghost_share":0.015,"stale_share":0.749,"repost_share":0.015,"time_to_fill_p50_days":48,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Herstal, Belgium"],"countries":["BE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"Bash","optional":false},{"name":"CATIA","optional":false},{"name":"Confluence","optional":false},{"name":"DO-160","optional":false},{"name":"Git","optional":false},{"name":"HPC","optional":false},{"name":"Jira","optional":false},{"name":"Linux","optional":false},{"name":"Matplotlib","optional":false},{"name":"OpenFOAM","optional":false},{"name":"Python","optional":false},{"name":"SolidWorks","optional":false},{"name":"STAR-CCM+","optional":false}],"status":"live","first_seen_at":"2026-11-10T00:00:00Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-13T06:22:23Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Lieu : Herstal, BelgiumContext & Mission\nWithin Thales VTS Belgium, you will join a team of advanced numerical simulation engineers to contribute to the design, optimization, and validation of complex defense systems. Your role will involve modeling, simulating, and analyzing physical phenomena (fluid flows, heat transfer, fluid-structure interactions, etc.) using CFD (Computational Fluid Dynamics), multi-physics, and finite element methods (FEM). You will collaborate closely with R&D, design, and production teams to ensure the performance and reliability of Thales’ cutting-edge solutions.\nWhy Join Thales?\nJoining Thales means becoming part of a global leader in critical technologies, where innovation and technical excellence drive our mission. You will contribute to high-impact projects while benefiting from a collaborative ecosystem and diverse career opportunities.\nKey Responsibilities\nCFD Simulation:\nModel and analyze fluid flows (compressible/incompressible, turbulent, multiphase) for critical applications (aerodynamics, propulsion, thermal management, etc.).\nUse industry-standard tools such as OpenFOAM, ANSYS Fluent/CFX, STAR-CCM+, or in-house Thales codes.\nValidate results through comparison with experimental or analytical data.\nundefined\nMulti-Physics & FEM:\nCouple physical phenomena (e.g., fluid-structure interaction, thermal-mechanical, aeroacoustics) using tools like ANSYS Multiphysics, COMSOL, or internal codes.\nPerform finite element analysis (FEM) to assess structural integrity, stress, deformation, and fatigue in mechanical components interacting with fluid flows.\nUse ANSYS Mechanical, Creo Simulate or similar for static/dynamic structural analyses.\nDevelop reduced-order models (ROM) or hybrid methods to optimize system performance.\nundefined\nOptimization & Innovation:\nContribute to the improvement of simulation tools (automation, Python scripting, HPC).\nPropose innovative solutions to address technical challenges (e.g., drag reduction, thermal management).\nCollaborate with data science teams to integrate AI/ML approaches into simulation workflows.\nCollaboration & Reporting:\nWork closely with R&D (Research & Development), design, testing, and customer teams.\nPrepare technical reports, presentations, and specifications for project reviews.\nSupport wind tunnel or laboratory tests to correlate simulation and experimental data.\nRequired Profile\nDegree:\nMaster’s or Engineering Degree in Fluid Mechanics, Aeronautics, Aerospace Engineering, Mechanical Engineering, or Applied Physics.\nExperience:\n3 to 5 years in numerical simulation (CFD focus) in an industrial or academic environment (internships included).\nExperience in multi-physics or FEM (fluid-structure interaction, thermal-mechanical coupling, etc.) is a strong plus.\nFamiliarity with aerospace/defense standards (e.g., DO-160, MIL-STD) is appreciated.\nTechnical skills\nCFD:\nProficiency in at least one CFD software (OpenFOAM, ANSYS Fluent/CFX, STAR-CCM+).\nKnowledge of turbulence models (RANS, LES, DES), numerical methods (FVM, FEM), and meshing tools (ICEM CFD, Pointwise, snappyHexMesh).\nMulti-Physics & FEM:\nUnderstanding of solid mechanics, heat transfer, and electromagnetics (depending on applications).\nFamiliarity with fluid-structure interaction (FSI) tools\nProgramming & Automation:\nScripting (Python, Bash) for pre/post-processing (e.g., Paraview, Tecplot, matplotlib).\nKnowledge of High-Performance Computing (HPC) and Linux/cluster environments.\nAdditional Tools:\nCAD software (e.g. CATIA, SolidWorks, Creo) for geometry preparation.\nVersion control (Git, SVN) and collaboration tools (Jira, Confluence).\nSoft Skills\nScientific rigor and ability to analyze complex results.\nTeamwork: Collaborate effectively in multidisciplinary project teams.\nAutonomy & proactivity to propose innovative solutions.\nTechnical English (minimum B2 level) for international collaboration.","description_format":"text","description_chars":3897,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Identity Management","Satellite Manufacturing","Electronic Warfare","Avionics & Flight Control"],"lifecycle":[{"event":"open","at":"2026-11-12T12:34:24Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring 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