Principal Mechanical Engineer: Gas & District Cooling Infra Lead

WSP; Riyadh; On-site; SAR 360,000 - 600,000; Full time

Job summary

WSP is seeking an experienced Principal Mechanical Engineer to lead the delivery of complex infrastructure projects across Saudi Arabia, with a focus on gas systems (LPG, NG, SNG), district cooling networks, pump stations and utility infrastructure.

The role requires technical leadership, mentoring of engineering teams, client and authority liaison, and ensuring high quality design and delivery in line with local regulations and international standards.

Qualifications

• Bachelor's degree in Mechanical Engineering or equivalent.
• 10–15 years of post‑graduate experience in mechanical infrastructure engineering.
• Chartered Engineer, Professional Engineer, or working towards a recognized accreditation.
• Proven experience in LPG, Natural Gas (NG), and Synthetic Natural Gas (SNG) systems.
• Strong design experience for gas pressure regulating stations (PPRS/SPRS) and distribution networks.
• Extensive knowledge of district cooling, chilled water networks, and utility pump stations.
• Experience in utility master planning, feasibility studies, and infrastructure strategy development.
• Proficiency in hydraulic modelling software (Bentley WaterGEMS, SISHYD/GasWorks, FLUIDIT, or equivalent).
• Solid understanding of ASHRAE, SBC, NFPA, IGEM, Civil Defense, Ministry of Energy, and related standards.

Responsibilities

• Lead the design and delivery of mechanical infrastructure projects focusing on gas systems and district cooling networks.
• Provide technical leadership for engineering calculations, specs, reports, drawings, and procurement support.
• Develop feasibility studies and assessments for cooling strategies at master planning stage.
• Coordinate with multidisciplinary teams to ensure integrated and efficient solutions.
• Manage authority approvals and liaise with utilities, Civil Defense, energy ministries, and municipal authorities.
• Review shop drawings, methods, and submittals for compliance with project requirements.
• Mentor junior engineers and uphold QA/QC standards across project execution.

Skills

Gas systems

District cooling

Chilled water networks

Gas distribution

PPRS/SPRS design

Hydraulic modelling

Technical leadership

Stakeholder management

QA/QC

Regulatory compliance

Education

Bachelor's Degree in Mechanical Engineering

Chartered Engineer / PE (or in progress)

Tools

Bentley WaterGEMS

SISHYD/GasWorks

FLUIDIT

Job description

WSP is seeking an experienced Principal Mechanical Engineer to lead the delivery of complex infrastructure projects across Saudi Arabia, with a focus on gas systems (LPG, NG, SNG), district cooling networks, pump stations and utility infrastructure.

The role requires technical leadership, mentoring of engineering teams, client and authority liaison, and ensuring high quality design and delivery in line with local regulations and international standards.