# Principal - Mechanical Engineer

**Company**: WSP
**Location**: Riyadh
**Work arrangement**: onsite
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Consulting

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## Description

We are seeking an experienced Principal Mechanical Engineer to lead the delivery of complex infrastructure projects across Saudi Arabia, with a primary focus on gas systems (LPG, SNG and Natural Gas networks), district cooling/chilled water networks, pump stations, and utility infrastructure.

The successful candidate will act as a subject matter expert, mentor engineering teams, engage directly with clients and authorities, and contribute to the growth and technical excellence of the Infrastructure Business.

## Responsibilities

- Lead the design and delivery of mechanical infrastructure projects with a focus on gas systems, district cooling/chilled water networks, and utility pump stations.

- Provide technical leadership for engineering calculations, specifications, reports, drawings, and procurement support activities.

- Develop feasibility studies and engineering assessments for cooling strategies, including district cooling and decentralized cooling systems at master planning stage.

- Evaluate and recommend gas supply solutions, including LPG, Natural Gas (NG), and Synthetic Natural Gas (SNG), based on technical, commercial, and operational requirements.

- Design gas storage facilities, gas farms, pressure regulating stations (PPRS/SPRS), and associated distribution networks for developments of varying scale.

- Lead hydraulic modelling and network analysis for gas and chilled water systems using industry-standard software.

- Prepare and review technical reports, design documentation, engineering specifications, and tender documents.

- Develop district cooling plant concepts and performance specifications for Design & Build (D&B) projects.

- Coordinate with multidisciplinary teams to ensure integrated and efficient infrastructure solutions.

- Manage authority approvals and liaise with relevant stakeholders, including utility providers, Civil Defense, Ministry of Energy, district cooling operators, and municipal authorities.

- Review contractor shop drawings, method statements, and material submittals to ensure compliance with project requirements.

- Ensure all designs comply with applicable local regulations, international standards, safety requirements, and sustainability objectives.

- Identify project risks and develop mitigation measures to support successful project delivery.

- Support project planning, resource allocation, budgeting, and programme management activities.

- Attend and lead technical meetings, client presentations, authority workshops, and design review sessions.

- Mentor and develop junior engineers, providing technical guidance and supporting professional growth.

- Maintain high standards of QA/QC throughout project execution and ensure quality deliverables are produced on time and within budget.

- Act as a trusted advisor to clients, maintaining strong relationships and ensuring client satisfaction.

## Qualifications

- Bachelor's Degree in Mechanical Engineering or equivalent from a recognized university.

- Minimum 10–15 years of post-graduate experience in mechanical infrastructure engineering.

- Chartered Engineer, Professional Engineer, or working towards a recognized professional accreditation.

- Proven experience in the design and delivery of LPG, Natural Gas (NG), and Synthetic Natural Gas (SNG) systems.

- Strong experience in the design of gas pressure regulating stations (PPRS/SPRS) and gas distribution networks.

- Extensive knowledge of district cooling systems, chilled water networks, and utility pump stations.

- Demonstrated experience in utility master planning, feasibility studies, and infrastructure strategy development.

- Proficiency in hydraulic modelling software such as Bentley WaterGEMS, SISHYD/GasWorks, FLUIDIT, or equivalent.

- Strong understanding of ASHRAE, SBC, NFPA, IGEM, Civil Defense, Ministry of Energy, and other relevant local and international standards.

- Experience in preparing technical reports, design calculations, specifications, tender documents, and authority approval submissions.

- Proven ability to lead multidisciplinary engineering teams and manage complex infrastructure projects.

- Experience coordinating with clients, contractors, utilities, and regulatory authorities.

- Excellent communication, stakeholder management, and technical presentation skills.

- Strong analytical, problem-solving, and decision-making abilities.

- Experience delivering infrastructure projects within Saudi Arabia and/or the GCC region is preferred.

## Skills

### Required
- Mechanical Engineering
- Gas Systems
- District Cooling
- Chilled Water Networks
- Utility Pump Stations
- Hydraulic Modelling
- Bentley WaterGEMS
- SISHYD/GasWorks
- FLUIDIT
- ASHRAE
- SBC
- NFPA
- IGEM

### Nice to have
- Experience delivering infrastructure projects within Saudi Arabia and/or the GCC region

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