Company BackgroundPlanys is a deep-tech company developing mission-critical robotic and digital systems for defence and strategic infrastructure. The company designs and builds unmanned systems and advanced sensing solutions across underwater, maritime, and land domains, with a strong focus on naval, coast guard, and army applications. Planys is actively engaged in the development of Unmanned Underwater Vehicles (UUVs) ranging from small to extra-large platforms, along with ruggedised electronic and digital systems for armoured vehicles.Leveraging its strong foundation in marine robotics, underwater inspection, and non-destructive evaluation (NDT), Planys integrates defence-grade electronics, sensing, and data analytics to deliver high-reliability systems suitable for harsh operational environments. The company combines platform engineering, payload integration, and AI-enabled digital analytics to support situational awareness, asset integrity assessment, and data-driven decision-making for defence forces and strategic asset operators.Planys, globally recognised for strategic infrastructure solutions, is now focused on creating a strong and enduring presence in the defence sector, delivering indigenous unmanned and digital systems for the Army, Navy, and Coast Guard. (Website: )Role & Responsibilities- Lead end to end mechanical design of ROVs, AUVs, & asset inspection robotic systems. - Design subsea pressure housings for electronics & sensors, Familiar with Pressure vessel design as per (BPVC), Material selection, thickness calculations, FEA Analysis of pressure vessels - Design of underwater Propulsion System components, Sizing and Selection of Motors, bearings, Design of motor housings, shafts, bearing housing - Develop structural designs considering static, dynamic, thrust loads, vibration, fatigue and hydrodynamic effects. Knowledge of hydrodynamics and CFD. Conversant with FEA/CFD tools - Design sealing & penetrator interfaces — O-ring grooves, shaft seals, face seals, dynamic and static sealing conditions. - Design robotic mobility systems (kinematics, adhesion(magnetic/ vacuum), seledrive 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 adjustments, and fit checks. - Conduct field testing and sea trials, analyse in-water performance and iterate designs based on operational feedback. - Work closely with Electrical, Software and Field Service teams during integration and qualification testing. - Drive product reliability improvements, failure mode analysis (RCA), corrective actions and build robustness in next revisions. - Create engineering documents — detailed drawings (GD&T), tolerance analysis, BOMs, testing plans & design reports. - Excellent Knowledge of GD&T is required. - Mentor junior engineers & interns on design best-practices & build reviews.Expected Skillset- 3D CAD (SolidWorks) - Pressure Vessel Design - Marine Propulsion Design - FEA / CFD Analysis - Sealing Engineering - Troubleshooting & Field Engineering - Cross-Function Collaboration - Reliability Engineering & FMEA
Job Title
Mechanical Design Engineer