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

📌 Sr. Mechanical Design Engineer (Chennai)
🏢 Xperteez Technology
📍 Chennai