Senior Robotics Simulation Developer / Ingénieur(e) principal(e) en simulation robotique

Vention is seeking a skilled Software Developer/Engineer for our simulation team who is passionate about developing digital twin experiences for real-world robotics applications. This is an exciting opportunity to redefine simulation for Vention's browser-first platform for machine design. This position will require you to build expertise in the simulation components of Vention's web-first technology stack. As a member of an agile team, you will refine Vention's simulation engine by improving its accuracy, capabilities and scale. What You'll Do • Own the physical modelling of simulated parts: choose the joints, actuators, constraints, contact parameters and collision geometry that represent robots and machine components • Define the control approach for simulated mechanisms (e.g. position, velocity and torque control, gain tuning) so that simulated behaviour matches the real hardware • Turn product and user needs into clear design documents that state the modelling approach, its assumptions, its limits and its trade-offs • Prototype solutions quickly to prove an approach before the team builds it into the product • Explain your solutions to the developers and support them during implementation; be the team's reference on physics and robotics concepts • Diagnose and resolve simulation problems such as instability, constraint drift, contact artefacts and slow convergence • Tune solver performance and stability (integrator, time step, solver settings, model simplification) for large, complex machines • Build and maintain simulation test pipelines that validate model accuracy, catch regressions and track performance • Speed up and standardize the process of introducing new simulatable parts into the platform • Contribute to the production code closest to the engine (C++ and TypeScript), where your expertise has the most impact • Contribute to physical AI features, where simulation fidelity affects sim-to-real transfer • Collaborate with the product manager, tech lead, developers, UX/UI designer and Vention's mechanical and robotics experts What You Bring to the Table Must haves: • Hands-on experience with at least one robotics physics engine: MuJoCo, NVIDIA Isaac Sim, Gazebo or Drake • Experience modelling the motion of physical bodies in a simulation engine, for robotics or mechanical 3D simulation (multibody dynamics, joints, actuators, contacts) • Strong grasp of robot kinematics, rigid-body dynamics, contact modelling and control fundamentals • Experience diagnosing and tuning the performance and stability of simulations in a physics engine • Experience implementing simulation test pipelines (model validation, regression and performance tests) • Proven ability to write design documents from loosely defined needs, prototype a solution and communicate it clearly to software developers • Very resourceful and autonomous: you find answers in documentation, source code, papers and experiments without waiting for direction • Programming ability to build your own prototypes and test pipelines, for example in Python • A degree in physics, robotics, mechanical engineering, applied mathematics, computer science or a related field. Strong assets: • Ability to ship production code in C++ and/or TypeScript. • Experience optimizing the performance of a commercial-grade non-linear numerical solver • Experience with computational geometry, such as collision mesh generation and convex decomposition • Direct MuJoCo experience (MJCF modelling, solver and contact parameter tuning) Nice to haves: • Ability to build data-driven models: identifying model parameters from measured hardware data so that simulation matches real behaviour • Experience with industrial automation equipment: robot arms, linear actuators, conveyors, grippers • Experience with physical AI: robot learning, synthetic data generation or sim-to-real transfer • Experience with CI/CD, or cloud and distributed systems What We Offer • Career pathing: Real opportunities to grow through personalized development plans, bi-annual employee reviews, and mentorship program • Professional development: Continuous training in performance management, inclusive leadership, leadership operating model, team building, and giving/receiving feedback • Gender diversity & inclusion: Pay equity reviews, inclusive policies, and a Women's Employee Resource Group offering networking, mentorship, and quarterly learning sessions. • Hybrid work: Enjoy flexibility with our hybrid model, allowing you to work from home on select days. • Community engagement: Two paid volunteering days per year to give back to causes you care about. • Team events: All year round employee events including annual kick-off, employee summit, quarterly happy hours, and department events. • Comprehensive benefits: A complete group benefits plan for you and your family that start day one. • Top-up and benefits for new parents: Additional financial support and resources to support employees during their transition to parenthood.