Role: CAE Simulation Engineer (LS-DYNA) Location: Full-time
Space Technology

Catalyx Space is building the world's best reentry systems. Our reusable ReX vehicles return payloads from orbit at unprecedented scale, up to 12 tons and 60m³ of cargo, while operating the full mission lifecycle from launch to recovery. Our core innovation is a Origami-inspired deployable heat shield that combines the scalability of an inflatable system with the robustness of a rigid structure. Built from commercial off-the-shelf components, it enables the world's widest heat shields, the largest payload return volumes, and a scalable pathway for returning everything from commercial cargo to future space nuclear assets.

We are looking for a CAE Simulation Engineer – LS-DYNA with hands-on experience in finite element modelling and nonlinear structural analysis. You will develop simulation models, perform explicit and implicit analyses, establish preload and pre-stressed conditions, and support engineering teams through virtual validation and design optimisation. Create and modify CAD models in SolidWorks for simulation and analysis
Generate high-quality meshes suitable for explicit and implicit analyses
Perform both explicit and implicit analyses and select the appropriate solution methodology for each engineering problem
Model structures using beam, cable, shell, and solid elements where applicable
Apply Dynamic Relaxation (DR) methods to establish preload or pre-stressed conditions before transient or nonlinear analyses




Validate preload conditions and ensure stable transition from preload to the primary analysis phase
Perform nonlinear structural, transient, quasi-static, impact, or related analyses as required
Review simulation convergence, energy balance, contact behaviour, mesh quality, and numerical stability
Interpret simulation results and provide engineering recommendations for design improvements
Collaborate with mechanical, structures, and design teams to optimise product performance and manufacturability
Bachelor's or Master's degree in Mechanical Engineering, Aerospace Engineering, or a related field
Hands-on professional experience with LS-DYNA
Solid understanding of finite element analysis fundamentals
Experience with beam and cable element modelling
Strong understanding of explicit and implicit analysis methodologies and when each approach should be used
Experience with meshing techniques and mesh-quality requirements
Experience using Dynamic Relaxation for preload and initial-equilibrium conditions
Experience with nonlinear structural simulations
Experience with dynamic impact, crash, transient, or quasi-static analyses
Experience with simulation-based design optimisation and validation
Experience correlating simulation results with physical test data
Exposure to aerospace, spacecraft, defense, automotive, or other high-reliability engineering applications

Compensation & benefits:
Competitive salary (details will be shared with shortlisted candidates),
health insurance
Apply via Zoho Recruit:

📌 Simulation Analysis Engineer (Ahmedabad)
🏢 catalyx space
📍 Ahmedabad