Senior Mechanical Design Engineer

Job Description

We're Hiring: Senior Mechanical Design Engineer Plastic Electromechanical Enclosures Location : Coimbatore, Tamil Nadu Workplace : 519/2, Athipalayam Road, Chinnavedampatty, Coimbatore – 641 049 Experience : 10+ Years (specialized in plastic product design & injection tooling) Salary : Competitive and negotiable for outstanding talent Start Date : Immediate Company : Tersano India (Subsidiary of Tersano Inc., Canada) About Tersano: Tersano Inc. is a Canadian company headquartered in Windsor, Ontario, specializing in sustainable, chemical-free cleaning technology. With the launch of our new R&D and engineering office in Coimbatore, we’re building a pioneering team to develop the next generation of water purification and appliance solutions—completely focused on plastic-based electromechanical designs. Role Summary: We are seeking an experienced Senior Mechanical Design Engineer with a strong background in plastic product design and injection molding for consumer and industrial water systems. This role excludes sheet metal work entirely. Instead, it focuses on designing cost-effective, manufacturable plastic enclosures and integrated components for electromechanical appliances such as ozone-based water purifiers, solenoid-integrated systems, and water-level detection units. Key Responsibilities: Independently conceptualize and develop 3D models and detailed 2D drawings of plastic-only mechanical parts for electromechanical appliances. Design functional and aesthetic plastic enclosures, internal mechanisms, and plumbing-safe layouts—strictly avoiding sheet metal. Select appropriate plastics and additives based on strength, heat resistance, water resistance, and ozone exposure. Design and validate plastic injection molds, core-cavity layouts, and gating strategies while managing material shrinkage and tooling tolerances. Apply DFM/DFA principles specific to plastic injection molding to ensure design scalability and cost efficiency. Carry out prototyping, mechanical testing, and design validation with a focus on fit, finish, and durability. Create and maintain accurate BOMs, part metadata, and revision histories using ERP and PDM/PLM tools (e.g., Vault Pro). Interface with toolmakers and component vendors to develop robust injection molding tools and ensure production-readiness. Required Skills & Qualifications: B.E./B.Tech in Mechanical Engineering 10+ years of experience in mechanical design, with a clear focus on plastic product development for consumer or industrial appliances. Deep expertise in plastic part design and injection molding tool development, including shrinkage calculation, draft angles, ribs, bosses, and snap fits. Proficient in Autodesk Inventor; working knowledge of AutoCAD, SolidWorks, or CREO is a plus. Strong knowledge of GD&T, tolerancing for plastics, and designing around mold flow behavior. Experience working in water-based product ecosystems (e.g., purifiers, solenoid-integrated plumbing, float sensors). Self-driven, hands-on problem solver with the ability to manage full product lifecycle from design to production. What to Expect as an Early Team Member: You will be part of the foundational hardware design team at Tersano India, shaping our long-term mechanical design strategies. This is a hands-on role involving lab setup, prototyping, testing, procurement, and team mentoring. You will have the opportunity to influence tool selection, lab infrastructure, and the end-to-end plastic development process. If you're passionate about plastic product innovation, tooling precision, and hands-on mechanical development, we’d love to hear from you. Help us build world-class products that are both sustainable and smart tarting from the ground up in Coimbatore.