Numerical Simulation Engineer

Expleo is a trusted partner for your innovation journey. As a global engineering, technology and consulting service provider, we are ideally positioned to help you achieve your ambitions and future-proof your business. With a smart blend of bold thinking and reliable execution, we're able to fast-track innovation through each step of your value chain.

We are strategically positioned to build value, with a global footprint across 30 countries. We are as global and local as you need us to be, with strong best-in-class pan-European technological centers and unique best-shoring capabilities.

We leverage a network of high value-adding affiliates in consulting and industrial excellence, and leading partners across multiple sectors to provide you with the most comprehensive services and solutions in an ever-changing environment.

Responsibilities

CFD Simulation:

• Model and analyze fluid flows (compressible/incompressible, turbulent, multiphase) for critical applications (aerodynamics, propulsion, thermal management, etc.).
• Use industry-standard tools such as OpenFOAM, ANSYS Fluent/CFX, STAR-CCM+, or in house codes.
• Validate results through comparison with experimental or analytical data.

Multi-Physics & FEM:

• Couple physical phenomena (e.g., fluid-structure interaction, thermal-mechanical, aeroacoustics) using tools like ANSYS Multiphysics, COMSOL, or internal codes.
• Perform finite element analysis (FEM) to assess structural integrity, stress, deformation, and fatigue in mechanical components interacting with fluid flows.
• Use ANSYS Mechanical, Creo Simulate or similar for static/dynamic structural analyses.
• Develop reduced-order models (ROM) or hybrid methods to optimize system performance.

Optimization & Innovation:

• Contribute to the improvement of simulation tools (automation, Python scripting, HPC).
• Propose innovative solutions to address technical challenges (e.g., drag reduction, thermal management).
• Collaborate with data science teams to integrate AI/ML approaches into simulation workflows.

Collaboration & Reporting:

• Work closely with R&D (Research & Development), design, testing, and customer teams.
• Prepare technical reports, presentations, and specifications for project reviews.
• Support wind tunnel or laboratory tests to correlate simulation and experimental data.

Qualifications

• Master’s or Engineering Degree in Fluid Mechanics, Aeronautics, Aerospace Engineering, Mechanical Engineering, or Applied Physics.
• 3 to 5 years in numerical simulation (CFD focus) in an industrial or academic environment (internships included).
• Experience in multi-physics or FEM (fluid-structure interaction, thermal-mechanical coupling, etc.) is a strong plus.
• Familiarity with aerospace/defense standards (e.g., DO-160, MIL-STD) is appreciated.
• Proficiency in at least one CFD software (OpenFOAM, ANSYS Fluent/CFX, STAR-CCM+).
• Knowledge of turbulence models (RANS, LES, DES), numerical methods (FVM, FEM), and meshing tools (ICEM CFD, Pointwise, snappyHexMesh).
• Scripting (Python, Bash) for pre/post-processing (e.g., Paraview, Tecplot, matplotlib).
• Knowledge of High-Performance Computing (HPC) and Linux/cluster environments.

Benefits

Expleo, we are committed to providing a competitive salary and substantial benefits offering with unique wellbeing, financial and employee recognition programs.

We pride ourselves on our diverse and inclusive culture and offer a variety of family-friendly policies and enhanced leave to help you achieve a healthy work life balance.

By providing significant learning and development opportunities, we encourage individual growth and success throughout your career with us.

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
• We empower all passionate technology-loving professionals by allowing them to expand their skills and take part in inspiring projects
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
• Enjoy a comprehensive benefits package, including hospitalization and outpatient insurance, a pension and group insurance plan, employee wellbeing initiatives, sports and social events, gifts for special occasions, and much more
• Enjoy meal and eco vouchers to support your daily needs and sustainable purchases
• Receive monthly representation fees to support work-related expenses
• 32 vacation days (20 + 12 for a 40-hour week).
• Always working as one team, our people are not afraid to think big and question the status quo.
• Flexible homeworking policy