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Senior Mechanical Design Engineer

Planys Technologies

5 - 10 years

Chennai

Posted: 15/06/2026

Job Description

Company Background

Planys 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


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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: www.planystech.com


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Role & Responsibilit

  • iesLead end to end mechanical design of ROVs, AUVs, & asset inspection robotic syste
  • ms.Design subsea pressure housings for electronics & sensors, Familiar with Pressure vessel design as per (BPVC), Material selection, thickness calculations, FEA Analysis of pressure vess
  • elsDesign of underwater Propulsion System components, Sizing and Selection of Motors, bearings, Design of motor housings, shafts, bearing hous
  • ingDevelop structural designs considering static, dynamic, thrust loads, vibration, fatigue and hydrodynamic effects. Knowledge of hydrodynamics and CFD. Conversant with FEA/CFD to
  • olsDesign sealing & penetrator interfaces O-ring grooves, shaft seals, face seals, dynamic and static sealing conditio
  • ns.Design robotic mobility systems (kinematics, adhesion(magnetic/ vacuum), seledrive torque estimation, surface traction studie
  • s).Carry out requirement analysis, concept evaluation, feasibility & simulation-based validation (analytical + numerica
  • l).Rapid prototyping & hands-on development including machining, assembly, tolerance adjustments, and fit chec
  • ks.Conduct field testing and sea trials, analyse in-water performance and iterate designs based on operational feedba
  • ck.Work closely with Electrical, Software and Field Service teams during integration and qualification testi
  • ng.Drive product reliability improvements, failure mode analysis (RCA), corrective actions and build robustness in next revisio
  • ns.Create engineering documents detailed drawings (GD&T), tolerance analysis, BOMs, testing plans & design repor
  • ts.Excellent Knowledge of GD&T is requir
  • ed.Mentor junior engineers & interns on design best-practices & build revie


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***Interested also can share your resume @ hrrecruiter@planystech.co


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