Software Engineer, Simulation (Digital Twins)

Startupvalleys; Zürich; Hybrid; CHF 110,000 - 150,000; Full time

Benefits offered by this job

Ownership of product

Mission-driven work

Career runway

Competitive equity/salary package

International founding team

Job summary

Laelaps AI in Zürich, Switzerland, is seeking a Software Engineer for the Simulation (Digital Twins) team. You will build simulation environments and digital twins from lidar maps so robots can observe intrusions, fires and sensor failures across real sites.

You will collaborate with the Skills & Orchestration and Reliability & Test Infrastructure engineers to scale GPU-parallel simulations, train RL policies, and bring new skills from simulation into the real robot deployments.

Qualifications

• 3+ years building robotics simulation or RL training environments.
• Hands-on with Isaac Sim or Isaac Lab; MuJoCo or Gazebo also considered.
• Strong Python; C++ a plus.
• 3D data: point clouds, meshes, scene formats such as USD.

Responsibilities

• Map to twin: pipeline from lidar maps to simulation-ready digital twins: geometry, semantics, materials, sensors.

Skills

Robotics simulation

Reinforcement learning

Python

C++

Isaac Sim

Isaac Lab

MuJoCo

Gazebo

3D data

Point clouds

Lidar

USD

Tools

Isaac Sim

Isaac Lab

MuJoCo

Gazebo

Python

C++

3D data tools

ROS 2

Job description

Posted 29 Oct 2026Laelaps AI Zürich, Switzerland · MapApply# Software Engineer, Simulation (Digital Twins)EngineeringOriginal posting — from Laelaps AIOpen original#### Our MissionAt Laelaps AI, we believe robotics is entering a transformative decade, much like the arrival of the internet. Advances in AI, cloud computing, and hardware are reshaping what autonomous systems can do. Our mission is to build the intelligent software that powers physical security in the real world - enabling robots and sensors to handle dangerous and critical tasks that humans shouldn't have to. By engineering the orchestration layer for intelligent security, we aim to create a world that is safer, more secure, and more resilient.We're a strong founding team based in Zurich, backed by visionary investors and advisors. We are engineering the future of security today!#### The RoleYou will be the first engineer on our Simulation team. Every site we map becomes a digital twin, built from our own lidar maps, and in it our robots see thousands of the intrusions, fires and sensor failures a real site sees once a year. Our multi-robot patrol policy was trained in simulation in under two hours on a single GPU and ran unmodified on real robots at three sites. Your job is to make that repeatable for every site and every new skill.You will work with our Skills & Orchestration engineers, who train learned skills with reinforcement learning, and with our Reliability & Test Infrastructure engineer, who runs regression in the same simulator.#### What You'll Work On* **Map to twin:** a pipeline from our lidar maps to simulation-ready digital twins: geometry, semantics, materials, sensors.* **Training environments:** RL environments for learned skills such as multi-robot patrol and search, randomised so nothing overfits one site.* **Rare events:** generate the scenarios real sites rarely produce: intrusions, sabotage, weather, sensor failures.* **Sensor simulation:** RGB, thermal and lidar realistic enough that what is learned in the twin holds on the robot.* **Sim-to-real:** measure the gap on real deployments and close it.* **Scale:** many parallel environments on GPUs, fast enough that a new skill trains in hours.#### Who We're Looking ForA simulation engineer who treats the simulator as production infrastructure and measures success by what transfers to real robots.#### Your Background* 3+ years building robotics simulation or RL training environments.* Hands-on with Isaac Sim or Isaac Lab; MuJoCo or Gazebo also considered.* Strong Python; C++ a plus.* **3D data:** point clouds, meshes, scene formats such as USD.* GPU-parallel simulation and reinforcement learning workflows.#### Nice to Have* Legged robots.* Photogrammetry, Gaussian splatting or other scene reconstruction.* ROS 2.* Thermal or lidar sensor modelling.#### What We Offer* **Ownership:** you are able to ship products and deliver project end-to-end.* **Mission:** autonomous security that keeps people and critical sites safe, including in defence.* **Career path:** a ground-floor seat with real runway. Prove your value and you will not have barriers to grow.* **Team:** work directly with PhD-level co-founders in AI, Robotics, and Physics, alongside a strong (and fun) founding team.* **Compensation:** Competitive equity/salary package* **Culture:** International founding team that is serious about building but does not take itself too seriously.This provider only shows the posting on its own website.