About Flexion

At Flexion, we're building the intelligence layer powering the next generation of humanoid robots. Our mission is to accelerate the transition from fragile prototypes to real-world humanoid deployment. We are founded by leading scientists in robot reinforcement learning (ex-Nvidia, ex-ETH Zürich), and backed by leading international VC firms. In just months, we’ve gone from our first line of code to deploying real humanoid capabilities.

The Role

We are looking for a Simulation Software Engineer to own and extend our simulation stack for robot learning.
Simulation is at the core of our approach to scaling intelligence. You will be responsible for building and maintaining the infrastructure that enables training, evaluation, and deployment of learning-based control systems at scale.
This is not a support role; you will own the simulation platform end-to-end, from physics fidelity to throughput optimization, a...