Sr. Mechanical Design Engineer

Job Title: Mechanical Design Engineer – Sewerage Treatment Plant (STP) Experience: 8+ years Location: Chennai Industry: STP/Water Treatment/RO Job summary: A Mechanical Design Engineer working in a sewerage treatment plant (STP) is responsible for designing, selecting, and supporting the installation of mechanical equipment used to treat wastewater safely and efficiently

1. Design Responsibilities- Design mechanical systems used in wastewater treatment processes. Prepare equipment layouts, piping layouts, and mechanical drawings. Design systems for: Pumps Blowers Mixers Screens Sludge handling equipment Aeration systems Ensure designs meet project specifications, environmental regulations, and safety standards.
2. Equipment Selection- Select suitable equipment based on plant capacity and process requirements. Evaluate vendor technical specifications. Prepare technical data sheets for equipment procurement. Review supplier drawings and approve them.
3. Engineering Calculations- Perform calculations for: Pump sizing Pipe sizing Flow rates Pressure losses Power requirements Ensure equipment efficiency and reliability.
4. Drawings and Documentation- Prepare and review: Material Submittal preparation Mechanical General Arrangement (GA) drawings Piping and Instrumentation Diagrams (P&ID) Equipment layout drawings Fabrication drawings Use software like: AutoCAD SolidWorks Autodesk Inventor
5. Coordination- Coordinate with: Civil engineers Electrical engineers Process engineers Contractors Ensure mechanical systems integrate properly with plant structures and controls.
6. Site Support- Provide technical support during: Equipment installation Commissioning Testing Key Skills Required: Mechanical system design Knowledge of wastewater treatment processes CAD software proficiency Equipment sizing and selection Understanding of piping systems Project coordination skills Typical Employers: Environmental engineering companies Water utility companies EPC contractors