Systems Engineer, Physics & Simulation

GovTech is the lead agency driving Singapore’s Smart Nation initiatives and public sector digital transformation. As the Centre of Excellence for Infocomm Technology and Smart Systems (ICT & SS), GovTech develops the Singapore Government’s capabilities in Data Science & Artificial Intelligence, Application Development, Smart City Technology, Digital Infrastructure, and Cybersecurity. 
 
At GovTech, we offer you a purposeful career to make lives better where we empower our people to master their craft through robust learning and development opportunities all year round. 
 
Play a part in Singapore’s vision to build a Smart Nation and embark on your meaningful journey to build tech for public good. Join us to advance our mission and shape your future with us today! 
 
Learn more about GovTech at tech.gov.sg. 

[What you will be working on] 

We are looking for a Systems Engineer (Physics & Simulation) to build the high-fidelity physical foundation of our Digital Twin platform. You will be responsible for ensuring that our virtual environments — from turbulent sea states to complex airflow around urban infrastructure — adhere to rigorous physical laws. Working with NVIDIA Omniverse and Open Universal Scene Description (OpenUSD), you will bridge traditional engineering simulation with real-time interactive environments to support operational planning and decision-making.

• Develop high-fidelity physics environments in NVIDIA Omniverse using OpenUSD, with a focus on maritime hydrodynamics and aviation aerodynamics.

• Implement and tune rigid-body dynamics, fluid solvers, and multi-physics constraints to accurately replicate real-world asset behaviour.

• Optimise complex mechanical and geospatial 3D assets — including vessels, aircraft, and infrastructure — for real-time physics computation without compromising accuracy.

• Integrate ArcGIS GeoAI workflows to ingest geospatial data, converting 2D maps and 3D city layers into simulation-ready OpenUSD environments.

• Apply spatial analysis techniques to define boundary conditions for physics simulations, such as coastal topography for wave impact modelling or urban canyon geometry for drone turbulence analysis.

[What we are looking for] 

• Degree in Computer Science, Engineering, Physics, or a related computational discipline.

• At least 3 years of relevant experience in physics simulation, spanning CFD, FEA, or high-fidelity game physics.

• Strong proficiency in C++ and Python, with practical experience using the NVIDIA Kit SDK or comparable simulation frameworks.

• Solid understanding of OpenUSD layering, composition arcs, and schemas.

• Familiarity with geospatial data formats — including raster, vector, and point clouds — and their application in physics-based simulation environments.

• Experience with simulation tools such as Ansys, OpenFOAM, or specialised maritime and aviation solvers.

Good to have

• Experience with NVIDIA Isaac Sim or Drive Sim.

• Ability to write custom shaders or physics plugins for real-time engines.

What we offer you:   

GovTech is an equal opportunity employer committed to fostering an inclusive workplace that values diverse voices and perspectives, as we believe that diversity is the foundation to innovation.    

Our employee benefits are based on a total rewards approach, offering a holistic and market-competitive suite of perks. These include leave benefits to meet your work-life needs and employee wellness programs.  

We champion flexible work arrangements (subject to your job role) and trust that you will manage your own time to deliver your best, wherever you are, and whatever works best for you.   

Learn more about life inside GovTech at go.gov.sg/GovTechCareers. 
Stay connected with us on social media at go.gov.sg/ConnectWithGovTech