Senior Mechanical Design Engineer

Company Brief

Planys is a deep tech start-up revolutionizing infrastructure integrity and risk assessment. Planys specializes in smart underwater inspection solutions and sophisticated digital analytics and reporting of NDT data. Planys envisions to steer a new course in the maintenance and inspection industry with its disruptive innovations in the field of marine robotics, novel underwater NDT methods and AI enabled post-inspection analytical digital reporting dashboard. Planys helps asset owners / operators in taking data-driven decisions for effective maintenance and repair of their critical assets. (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