Role & responsibilities
Lead end-to-end mechanical design of AUVs, and large-class / long-endurance underwater vehicles (XL-UUVs) including subsystem ownership and system-level integration considerations
Design subsea pressure housing and large pressure hull systems, including material selection, thickness calculations, buckling & collapse analysis, and modular hull architectures. Familiarity with BPVC standards.
Design of underwater Propulsion System components considering mission endurance, hydrodynamic drag, & energy efficiency.
Sizing and Selection of Motors, bearings
Design of motor housings, shafts, bearing housing
Knowledge of blade design is a plus
Develop structural and hydrodynamic designs considering vehicle-level drag, buoyancy distribution, stability, static/agile loads, vibration, and long-duration fatigue under cyclic loading.
Design sealing & penetrator interfaces - O-ring grooves, shaft seals, face seals, agile and static sealing conditions for long-duration reliability, degradation & redundancy.
Design robotic mobility systems (kinematics, adhesion(magnetic/ vacuum),



torque estimation, surface traction studies).
Carry out requirement analysis, concept evaluation, feasibility & simulation-based validation (analytical + numerical).
Rapid prototyping & hands-on development including machining, assembly, tolerance, Stack-up, and fit checks.
Conduct field testing and sea trials, long-duration mission validation and iterate designs based on operational feedback.
Work closely with Electrical, Software and Field Service teams during integration and qualification testing.
Drive product reliability through DFMEA, PFMEA, root cause analysis, and reliability growth tracking, ensuring robustness across mission cycles.
Create engineering documents - detailed drawings (GD&T;), tolerance analysis, BOMs, testing plans & design reports.
Excellent Knowledge of GD&T; is required.
Mentor junior engineers and interns, conduct design reviews, and drive engineering best practices across teams.

📌 Senior Mechanical Design Engineer Chennai (India)
🏢 Xsub Robotics
📍 India