Principal CFD Engineer (Multiphase)

Location: Hybrid in Singapore

Company

hirify.global is a deep-tech company building an AI-driven simulation software stack for engineering and manufacturing across advanced industries such as Aerospace, Energy, and Automotive.

What you will do

• Develop multiphase flow models (gas-liquid, solid-liquid, VOF, Euler-Euler/Lagrange) for a variety of industrial and process engineering applications.
• Model non-Newtonian and complex fluid rheology, including high-viscosity and shear-thinning flow regimes.
• Own meshing generation strategies for complex industrial geometries and build robust parametric CAD models in NX or CATIA.
• Implement HPC workflows, including job scheduling and GPU acceleration for large-mesh transient simulations.
• Create surrogate AI models and curate CFD datasets for downstream ML training and Pareto optimization workflows.
• Collaborate directly with customers to scope and solve complex engineering challenges via CAE and AI solutions.

Requirements

• 5–7 years of industry experience post-MEng, MSc, or PhD in mechanical, chemical, or process engineering.
• Must be based in Singapore for a hybrid work arrangement.
• Deep proficiency in CFD solvers such as OpenFOAM, Star-CCM+, or Fluent.
• Experience with Python scripting and simulation automation.
• Strong communication skills for interacting with both technical and non-technical stakeholders.

Nice to have

• Experience in parametric CAD modelling using NX or CATIA.
• Expertise in custom solver and boundary condition development.

Culture & Benefits

• Opportunity to shape an AI-native engineering company at a formative stage with real-world industrial impact.
• Collaboration with a high-caliber team of engineers and scientists in a flat organizational structure.
• Hybrid work model blending office time with work-from-home flexibility.
• Commitment to diversity, equity, and equal employment opportunities.