Senior Robotics Engineer - Simulation

Senior Robotics Engineer - Simulation

Location: Bangalore | Full-Time | Experience: 5-8 Years

About Rekise Marine

Rekise Marine is building autonomous ships and submarines that operate in the world's most hostile environments. We're executing India's flagship autonomous submarine project — the Jalkapi XLAUV — on order from the Indian Navy. This is an unmanned submarine weighing over 20 tons that can travel 5,000+ kilometers autonomously and operate in the ocean for 30+ days at a time. We're creating some of the largest autonomous robots in the world, machines with direct impact on the global economy and national security. While autonomous cars in India may still be a dream, autonomous ships and submarines are already a reality, and it is possible to build for the world from India.

The Role:

We're seeking a Senior Robotics Engineer to build the simulation and digital twin infrastructure for our autonomous submarine program. You'll create high-fidelity virtual environments where we can test, validate, and accelerate the development of autonomy algorithms before they ever touch the ocean. From modeling hydrodynamics and sensor physics to building full-vehicle digital twins, your work will be the foundation that enables rapid iteration on a platform where real-world testing costs millions and takes months to plan.

Key Responsibilities:

●Marine Environment Simulation: Develop high-fidelity marine environment simulations using NVIDIA Isaac (Preferred), Unreal Engine, Unity,or custom engines. Model realistic ocean conditions including currents, waves, turbidity, thermoclines, and acoustic propagation.

●Hydrodynamics & Physics Modeling: Model vehicle hydrodynamics, buoyancy dynamics, thruster interactions, and 6-DOF vehicle behavior under varying sea states. Implement accurate physics-based models for drag, lift, added mass, and Coriolis effects.

●Sensor Simulation: Create realistic sensor models for DVL, sonar (side-scan, forward-looking, multibeam), cameras, LiDAR, IMU, and acoustic modems. Simulate sensor noise, degradation, multipath effects, and environmental interference.

●Digital Twin Development: Build comprehensive digital twins for AUVs/ASVs that mirror real-time vehicle state, enabling parallel testing of autonomy, perception, and navigation algorithms. Implement data pipelines for synchronizing digital twin state with field trial data.

●Simulation Infrastructure & Scalability: Optimize simulation for high-fidelity testing while maintaining real-time or faster-than-real-time performance. Build scalable infrastructure for parallel simulation runs, Monte Carlo testing, and automated regression testing of autonomy stacks.

●Integration & Validation: Integrate simulation environments with ROS2-based autonomy stacks for seamless software-in-the-loop (SIL) and hardware-in-the-loop (HIL) testing. Develop validation frameworks that correlate simulation results with real-world performance.

Required Qualifications:

●B.Tech/M.S./Ph.D. in Robotics, Cohttps://app.breezy.hr/app/c/nexthire/positions/new/description#mputer Science, Mechanical Engineering, Game Development, or related field from a recognized institution.

●5+ years of experience in simulation, physics-based modeling, or digital twin development for robotics or game development.

●Proficiency in at least one major simulation/game engine (NVIDIA Isaac (Preferred), Unreal Engine, Unity,or custom engines).

●Strong coding skills in C++ with production-quality software practices.

●Experience with physics-based simulation including rigid body dynamics, fluid dynamics, and sensor modeling.

●Experience with ROS integration into simulation environments.

●Understanding of software-in-the-loop (SIL) and hardware-in-the-loop (HIL) testing methodologies.

●Strong mathematical foundations in physics, linear algebra, and numerical methods.

Preferred Experience

●Experience with marine/underwater simulation or hydrodynamic modeling.

●Background in control systems, validation frameworks, or formal verification for robotic systems.

●Experience with GPU-accelerated simulation or parallel computing frameworks.

●Familiarity with sonar simulation, acoustic modeling, or underwater sensor physics.

●Experience with NVIDIA Omniverse, Isaac Sim, or similar advanced simulation platforms.

●Knowledge of real-time rendering, shader programming, or procedural environment generation.

●Publications or open-source contributions in robotics simulation.

Why Join Rekise Marine

●Build the Virtual Ocean: Create simulation environments for the most complex autonomous platform in India. The fidelity challenges here — modeling acoustic physics, ocean dynamics, and 30-day missions — push the boundaries of what simulation can do.

●Accelerate Development 10x: Every improvement in simulation fidelity directly accelerates our entire autonomy development pipeline. Your work multiplies the productivity of every engineer on the team.

●Technical Ownership: You'll architect the entire digital twin and simulation infrastructure from scratch. Your decisions will define our testing paradigm..

●Growth:. As simulation becomes central to our development process, this role grows into a leadership position.

●Benefits: Competitive compensation and Health insurance for you and your family