Lead Mechanical Design Engineer – Water & Wastewater Utilities

Dar Al Riyadh Group; Jeddah; On-site; SAR 350,000 - 550,000; Full time

Job summary

Dar Al Riyadh Group in Saudi Arabia is seeking a Lead Mechanical Design Engineer to lead the design of wet utilities systems including potable water, firefighting, irrigation, stormwater, and sewage networks, as well as sewage treatment plants and lifting stations. The role is office-based and focuses on delivering high-quality compliant designs for major infrastructure projects.

You will oversee the mechanical design, prepare drawings and specifications, develop BOQs and design calculations,

Qualifications

• Bachelor's degree in Mechanical Engineering (Master's preferred).
• Minimum 12 years of experience in wet utilities design, with a focus on STPs and pumping/lifting stations.
• Strong understanding of mechanical systems used in water and wastewater infrastructure.
• Proficiency in AutoCAD, Civil 3D, and preparation of detailed design documentation.
• Familiarity with local authority processes and design standards in Saudi Arabia.
• Strong leadership, coordination, and communication skills.

Responsibilities

• Lead the design of wet utility systems including water distribution irrigation stormwater drainage and sewage collection networks
• Oversee mechanical design of sewage treatment plants STP and stormwater sewage lifting stations
• Prepare and review technical drawings layouts design reports and material specifications
• Develop design deliverables including BOQs equipment schedules and design calculations
• Coordinate closely with civil electrical and structural teams to ensure integrated design
• Ensure compliance with Saudi authority requirements e.g SBC NWC RC MOMRA and international standards
• Manage and mentor junior engineers and CAD designers
• Participate in internal design reviews and client meetings to present and defend design choices

Skills

Leadership

Coordination

Communication

Education

Bachelor's degree in Mechanical Engineering (Master's preferred)

Tools

AutoCAD

Civil 3D

Job description

Dar Al Riyadh Group in Saudi Arabia is seeking a Lead Mechanical Design Engineer to lead the design of wet utilities systems including potable water, firefighting, irrigation, stormwater, and sewage networks, as well as sewage treatment plants and lifting stations. The role is office-based and focuses on delivering high-quality compliant designs for major infrastructure projects.

You will oversee the mechanical design, prepare drawings and specifications, develop BOQs and design calculations,