senior mechanical engineer

<div>What if you could do the kind of work the world needs?
 
 
At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives. You can experience a world of opportunity and the chance to shape a career as unique as you.
We are seeking an experienced Senior Mechanical Engineer to join a major data centre project located east of Riyadh. The role will be responsible for overseeing mechanical design, installation, and commissioning activities, ensuring all works meet project specifications, international standards, and client requirements.</div>
 <div><ul><li>Oversee mechanical works including HVAC, chilled water systems, plumbing, fire protection, and associated utilities
</li><li>Review and manage mechanical design drawings, calculations, and technical submittals
</li><li>Coordinate with contractors, consultants, and other engineering disciplines
</li><li>Monitor site installation works to ensure compliance with approved drawings, specifications, and quality standards
</li><li>Support testing, commissioning, and handover of mechanical systems
</li><li>Identify and resolve technical issues and site coordination challenges
</li><li>Ensure adherence to project schedules, safety requirements, and quality objectives
</li><li>Prepare technical reports and provide engineering support to the project team</li></ul></div>
 <div><ul><li>Minimum 12+ years of experience, with proven senior-level responsibility on large-scale construction projects
</li><li>Saudi Council of Engineers (SCE) registration &ndash; mandatory
</li><li>Experience on data centre, industrial, or mission‑critical facilities is highly preferred
</li><li>Strong knowledge of mechanical systems relevant to data centres (HVAC, cooling, fire protection, etc.)
</li><li>Familiarity with international codes and standards (ASHRAE, NFPA, etc.)
</li><li>Strong coordination, leadership, and communication skills
</li><li>Ability to work effectively in a fast-paced site environment
</li></ul>Imagine a better future for you and a better future for us all.
 
 
Join our close-knit community of talented individuals who share your passion for making a positive impact. Our global team includes more than 69,000 employees, working together to make a difference in communities both close to home and around the world.
 
 
With us, you can. Apply today.
 
#LI-ONSITE</div>

Senior Mechanical Engineer

Surbana Jurong Private Limited

<div><ul><li>A global multidisciplinary consultancy with 16,500+ professionals across 40+ countries</li><li>
Delivering world-class infrastructure, buildings, and environmental solutions</li><li>
Deliver advanced water infrastructure engineering design and analysis across complex engineering projects</li></ul>
About SJ Group: 
Surbana Jurong Group is a leading global urban, infrastructure, and managed services consulting firm. With a strong presence across Asia, the Middle East, Africa, and beyond, we deliver integrated solutions across the entire project lifecycle, from planning and design to delivery and asset management.
Our Middle East operations continue to expand, supporting major infrastructure, transportation, energy, and development projects aligned with national visions and long-term growth strategies. 
About the Role:
The Senior Water Infrastructure Mechanical Engineer will lead the mechanical design of water infrastructure facilities in Saudi Arabia, contributing to ME's significant water infrastructure programmes aligned with Vision 2030 water security objectives. The role demands strong technical competence across pumping stations, desalination plants, and water and wastewater treatment works (WTW/WWTW), with the ability to independently manage design packages and mentor junior engineers within the KSA team.
Key Responsibilities:<ul><li>
Lead detailed mechanical design of water pumping stations (raw water, potable, booster, sewage), including pump selection, hydraulic performance analysis, surge/transient protection, and ancillary mechanical systems.</li><li>
Develop process and mechanical designs for water treatment works, desalination plants (SWRO, MSF, MED), and wastewater treatment facilities, including process flow diagrams (PFDs), piping and instrumentation diagrams (P&amp;IDs), and equipment datasheets.</li><li>
Prepare and review engineering calculations, design reports, technical specifications, BOQs, and IFC drawings; ensure compliance with Saudi standards (MOWE, NWC, SWCC) and relevant international codes (BS, ISO, ASME, AWWA).</li><li>
Undertake hydraulic transient and surge analysis using specialist software (HAMMER, or equivalent); recommend and specify appropriate surge suppression equipment and protection strategies.</li><li>
Coordinate mechanical design interfaces with civil/structural, electrical, instrumentation, and SCADA disciplines, support authority submissions, and client technical review meetings.</li><li>
Provide construction-stage technical support, including review of contractor submittals, shop drawings, and O&amp;M documentation, and attend site visits for the major mechanical plant.</li></ul>
Qualifications &amp; Requirements:<ul><li>
Degree in Mechanical Engineering.</li><li>
10-15 years in mechanical engineering for water infrastructure</li><li>
Demonstrable design experience on water pumping stations, desalination plants, and WTW/WWTW in the GCC or KSA specifically; familiarity with NWC, SWCC, and MOWE design standards is essential.</li><li>
Proficiency in 3D/2D mechanical design tools and working knowledge of BIM workflows.</li><li>
Strong communication skills in English; Arabic language proficiency is advantageous. Ability to work effectively in a multi-disciplinary, multi-cultural project environment across the KSA region.</li></ul>
Why Join SJ?
Join a global, multidisciplinary consultancy shaping sustainable, people-centric environments across 40+ countries. Work with world-class teams and lead impactful landscape design across the region.
All recruitment activities are handled by our internal Talent Acquisition Team, and this role currently doesn't require agency input.
Please do not forward resumes directly to SJ employees/managers; we do not accept unsolicited resumes and are not responsible for any associated fees.
**Only shortlisted candidates will be notified**
At Surbana Jurong, we put talent, hard work, teamwork and a fun workplace together to approach problems and solve them creatively and collaboratively. Join us in making a positive impact on the world!</div>

Senior Mechanical Engineer - Water

Omrania- عمرانية

<div></div><div>Egis is an international player active in architecture, consulting, construction engineering and mobility services. We create and operate intelligent infrastructures and buildings that respond to the climate emergency and contribute to more balanced, sustainable and resilient territorial development. Operating in 100 countries, Egis puts the expertise of its 19,500 employees at the service of its clients and develops cutting-edge innovations accessible to all projects. Through its wide range of activities, Egis is a key player in the collective organisation of society and the living environment of citizens all over the world.
With 3,500 employees across 8 countries in the Middle East, Egis has delivered over 700 complex development projects, stimulating economic growth and enhancing quality of life. Ranked among the top ten firms in the Middle East by Engineering News Record (ENR), Egis is committed to sustainable development. The Group&rsquo;s operations in the Middle East are built on strategic acquisitions and a deep understanding of local market conditions. Egis has long history of providing comprehensive engineering, consulting, and project management services makes it a trusted partner for regional governments, investors, and developers.<div> 
About the Role</div> 
<ul><li>
Bachelor&rsquo;s degree in Mechanical Engineering</li><li>
Minimum of 20 years of experience, including extensive experience in engineering consultancy and site supervision</li><li>
Proven track record in managing mechanical works, including HVAC, plumbing, firefighting systems, LPG/NG, and fuel systems across large-scale construction projects</li><li>
Strong knowledge of mechanical engineering principles, including heat load calculations and system sizing</li><li>
Solid understanding of HVAC systems, piping systems, and industrial mechanical equipment</li><li>
Proficiency in CAD and BIM software</li><li>
Familiarity with project management tools and construction methodologies</li><li>
Strong problem-solving skills with a detail-oriented approach</li><li>
Excellent communication, coordination, and leadership abilities</li><li>
Ability to work effectively in a fast-paced, multicultural project environment</li></ul></div>

Senior Mechanical Engineer (Saudi National)

Omrania

<div>Company Description 
Egis is an international player active in architecture, consulting, construction engineering and mobility services. We create and operate intelligent infrastructures and buildings that respond to the climate emergency and contribute to more balanced, sustainable and resilient territorial development. Operating in 100 countries, Egis puts the expertise of its 19,500 employees at the service of its clients and develops cutting-edge innovations accessible to all projects. Through its wide range of activities, Egis is a key player in the collective organisation of society and the living environment of citizens all over the world.
With 3,500 employees across 8 countries in the Middle East, Egis has delivered over 700 complex development projects, stimulating economic growth and enhancing quality of life. Ranked among the top ten firms in the Middle East by Engineering News Record (ENR), Egis is committed to sustainable development. The Group&rsquo;s operations in the Middle East are built on strategic acquisitions and a deep understanding of local market conditions. Egis has long history of providing comprehensive engineering, consulting, and project management services makes it a trusted partner for regional governments, investors, and developers. 
Job Description 
<ul><li>
Bachelor&rsquo;s degree in Mechanical Engineering</li><li>
Minimum of 20 years of experience, including extensive experience in engineering consultancy and site supervision</li><li>
Proven track record in managing mechanical works, including HVAC, plumbing, firefighting systems, LPG/NG, and fuel systems across large-scale construction projects</li><li>
Strong knowledge of mechanical engineering principles, including heat load calculations and system sizing</li><li>
Solid understanding of HVAC systems, piping systems, and industrial mechanical equipment</li><li>
Proficiency in CAD and BIM software</li><li>
Familiarity with project management tools and construction methodologies</li><li>
Strong problem-solving skills with a detail-oriented approach</li><li>
Excellent communication, coordination, and leadership abilities</li><li>
Ability to work effectively in a fast-paced, multicultural project environment</li></ul></div>

Haskoning

<div>
 
 Are you passionate about data centres and the digital revolution? Do you want to work with a global leader in designing and engineering reliable and sustainable data centres? Join Haskoning, a top 5 firm in the industry, and be part of our Mission Critical Facilities (MCF) Data Centre team. We have offices and teams in The Netherlands, Germany, Switzerland, Poland, Spain, the UK, the Kingdom of Saudi Arabia, Vietnam, Indonesia, and South Africa, and we partner with some of the largest and leading data centre providers and users across the world. We are looking for experienced and motivated professionals to help us grow and innovate in this strategic market. Apply now and make a difference!
 
 
 
 What you will do as Senior Mechanical Engineer (MCF/ Data Centres)
 
 
 
 As a Senior Mechanical Engineer, you work with highly demanding data centre clients in an international, multidisciplinary environment. You deliver advanced mechanical designs up to detailed 3D and working documentation level, while operating safely within live data centre environments and contributing to continuous improvement and knowledge sharing within Haskoning.
 
 
 
 Main responsibilities
 
 
 <ul>
 <li>
 Manage and deliver mechanical work packages across multiple data centre projects, ensuring safe execution within live (brownfield) environments;
 </li>
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 Define project scope, design and management objectives, and deliver high-quality mechanical designs, technical specifications and documentation;
 </li>
 <li>
 Ensure effective risk management by executing assessments and overseeing testing and commissioning activities;
 </li>
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 Support project management through cost reviews, risk assessments, tender evaluations and vendor selection, including participation in factory acceptance tests and site activities;
 </li>
 <li>
 Maintain clear communication with contractors, vendors, regulatory authorities and internal and external stakeholders, while contributing to internal process optimisation and knowledge development.
 </li>
 <li>
 Ensure high-quality and timely information flow to contractors, vendors and regulatory authorities, including specifications, reports, and tender documentation;
 </li>
 <li>
 Support project management through cost reviews, risk management, testing and commissioning, vendor evaluation, and representation of Haskoning during factory and site acceptance activities.
 </li>
 </ul>
 
 
 Where you will work
 
 
 
 At Haskoning, you will join an independent, employee-owned international consultancy that combines engineering, design, and consultancy services with software and technology. Our mission, "Enhancing Society Together," drives us to create a positive impact on the world.
 
 
 We offer purpose-driven and challenging work in diverse international projects, leveraging our 140+ years of expertise. With over 6,800 employees in more than 25 countries, we work together to turn challenges into opportunities and make a real impact on society. We collaborate with leading clients in markets such as infrastructure, climate resilience, renewable energy, decarbonisation of industry, and sustainable mobility.
 
 
 As our new Senior Mechanical Engineer (MCF/ Data Centres) you will become part of the team Mission Critical Facilities. Our global Mission Critical Facilities (MCF) team provides a multidisciplinary package of consultancy services for our datacentre clients. We provide strategic, tactical, and operational advice to our clients, including colocation datacentres, internet service providers, and telecom companies. Our team consists of colleagues with all kinds of different expertise. For example, electrical engineering, mechanical engineering, construction, civil, structure, building, architecture, fire safety, control engineering, and security technology. Together we use our knowledge and expertise to develop integrated designs for Data Centres.
 
 
 Curious about our work?
 
 Here
 
 you will find examples of some our projects.
 
 
 
 What you bring
 
 
 
 You combine strong interpersonal skills with an entrepreneurial and results-driven mindset. You work confidently in international project environments, communicate effectively with diverse stakeholders, and approach complex technical and operational challenges with a proactive, flexible and solution-oriented attitude. Besides, you possess the following:
 
 <ul>
 <li>
 A bachelor&rsquo;s and/ or master&rsquo;s degree in mechanical engineering, providing the technical foundation required for high-complexity design and engineering decisions;
 </li>
 <li>
 A minimum of 10 years of relevant experience in mechanical design and engineering, including demonstrable experience in data centre projects, ensuring senior-level capability in mission-critical and live environments;
 </li>
 <li>
 Strong knowledge of international and local design and construction standards, codes, regulations and industry best practices, enabling compliant, efficient and robust mechanical solutions within the KSA project context;
 </li>
 <li>
 A solid understanding of the daily operational business of data centre clients, essential for developing practical, reliable and maintainable designs;
 </li>
 <li>
 Fluency in English is required, with Arabic language skills considered a strong advantage for effective collaboration with local stakeholders and authorities.
 </li>
 </ul>
 
 
 What you can expect from us
 
 
 
 Within our company you will be able to develop yourself while working on challenging projects worldwide. We are aiming for the long-term position where we as employer can contribute to your growth and development as an Mechanical Engineer. Besides that, we also offer you:
 
 <ul>
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 A competitive salary aligned with your experience and expertise;
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 A good work-life balance, including a laptop and company cell phone so you can work wherever and whenever you want;
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 30 holidays based on a 40-hour work week;
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 A workplace in our office in Riyadh, KSA;
 </li>
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 Lifelong learning by offering you plenty of training &amp; development opportunities.
 </li>
 </ul>
 
 
 Are you our new colleague?
 
 
 
 We would like to meet you! Click on the apply button and upload your resume and motivation letter. After receiving your application, we will contact you as soon as possible.
 
 
 For more information, you can always contact Christian de Visser, Recruiter Mission Critical Facilities, at christian.de.visser@haskoning.com.
 
 
 
 Due to the privacy law, please submit your application via the apply button and not via email.
 
 
 
 
 At Haskoning, we are committed to fostering a diverse and inclusive workplace where everyone feels valued, respected, and empowered. Our mission of "Enhancing Society Together" drives us to create an environment that embraces each individual&rsquo;s unique background, identity, and perspective. Regardless of your experience, background, age, gender, or other personal characteristics&mdash;you are welcome here. We believe that diversity makes us stronger and that an inclusive culture gives everyone the opportunity to grow and contribute. Read more about our ED&amp;I initiatives on our
 
 dedicated webpage
 
 .
 
 
 
 
 
 Unrequested acquisition for this vacancy by agencies, is not appreciated and offered candidates will not be taken into consideration.
 
 
 
</div>

Mechanical Engineer

CSI Global

<div><h1 class="jobSectionHeader">Job Title: Sr. Commissioning Mechanical Engineer</h1>
<h1 class="jobSectionHeader">Location: Riyadh / KSA</h1>
<h1 class="jobSectionHeader">Employment Type: Full-Time | On-Site</h1>
<h2 class="jobSectionHeader">About CSI Global:</h2>
At CSI Global, we specialize in delivering advanced electromechanical, testing, and commissioning services across the GCC and Globally. We power infrastructure through technical excellence and engineering innovation. Join a team committed to shaping the future of transmission and energy systems in the region.
<h2 class="jobSectionHeader">Position Overview:</h2>
We are seeking an experienced Sr. Commissioning Mechanical Engineer who will lead end-to-end commissioning of mechanical building systems, HVAC, chilled water, plumbing, and fire protection, so the asset reaches safe, code-compliant, verifiably performing handover (FAC) on time and with complete documentation.
<h2 class="jobSectionHeader">Key Responsibilities:</h2>
<ul><li>Plan and run the Cx program (lots, sequences, windows) aligned to the construction master schedule; maintain a live Commissioning Activity Tracker (CAT), punch lists, and risk register.</li><li>
Prepare/review ITPs, pre-functional checklists (PFCs), method statements, and test packs; execute FPT / SAT / IST and close Consultant comments to final acceptance.</li><li>
Commission Core Systems:<ul><li>
HVAC &amp; CW/CHW: AHUs/FAHUs/FCUs, pumps, valves, coils, heat exchangers, VAVs, dampers; hydronic flushing/cleaning, water quality, flow balancing, TAB and thermal performance verification.</li><li>
Ventilation/Smoke Control: pressurization fans, stairwell/lobby pressurization, car park ventilation, CO systems.</li><li>
Plumbing &amp; Drainage: pressure tests, chlorination/disinfection, functional tests (H/W mixing, PRVs, transfer pumps).</li><li>
Fire Protection: hydrostatic tests, pump performance curves, jockey sequencing, alarm/interlock checks, FA / BMS integration.</li></ul></li><li>
Validate controls and BMS interfaces (points mapping, sequences of operation, alarms/safeties) and participate in Integrated Systems Testing with FA/ELV.</li><li>
Coordinate daily with GC/Subs/Vendors/Consultant on prerequisites, access/permit-to-work, and energization/commissioning windows.</li><li>
Produce O&amp;M manuals, training materials, spares lists, warranties; deliver client training and signoffs.</li><li>
Drive regular progress/technical/Cx meetings; surface risks early and execute recovery plans.</li></ul>
<h2 class="jobSectionHeader">Required Qualifications:</h2>
<ul><li>5&ndash;8 years of mechanical testing &amp; commissioning on mid-to-large projects (healthcare, airports, data centers, high-rise, industrial).</li><li>
BSc in Mechanical Engineering (or equivalent).</li><li>
Hands-on with TAB, hydronic balancing, ventilation balancing, pressure/leak tests, chlorination, smoke control performance tests, pump curves, equipment functional tests, and IST participation.</li><li>
Strong documentation discipline (ITPs, PFCs, test packs, SAT/IST reports, certificates; red-lines/as-builts).</li><li>
Working knowledge of codes/standards (ASHRAE, SMACNA/DW144, NFPA, IPC, CIBSE, ISO) and safety/permit processes.</li></ul>
<h2 class="jobSectionHeader">Preferred Qualifications:</h2>
<ul><li>Complex facilities commissioning (Tier-III/IV DCs, hospitals, labs) and authority/third-party approvals (e.g., Civil Defense / House of Expertise in KSA).</li><li>
Controls/BMS exposure (Siemens/JCI/Honeywell/etc.), data loggers, trend analysis, and Power BI/advanced Excel for trackers.</li><li>
Experience with acoustic/vibration tests and thermal imaging for envelope/HVAC diagnostics.</li></ul></div>

Sr. Commissioning Mechanical Engineer

ARX | smart minds

<div>
 ARX is a global network of specialists in engineering, design, and architecture. Our team offers 360&deg; consulting, project management, and technical services in:
 
 
 airports, bridges, buildings, cableways,
 
 
 digital innovation, environment, equipment,
 
 
 geology, geotechnics, hydropower, metros,
 
 
 nuclear plants, oil &amp; gas, pipelines, ports,
 
 
 railways, river engineering, roads, traffic, tunnels, and water/wastewater treatment.
 
 
 With offices across Europe, North and South America, Asia, Africa, and Oceania, our agile task force combines global expertise with local know-how. The result is our uniquely "glocal" approach, which allows us to meet the specific needs of each community while incorporating international best practices. At ARX, smart minds strive for a sustainable future, transforming communities one innovative project at a time.
 
 
 People are the heart and soul of ARX. We are a home for innovators, visionaries, and experts to develop talents, launch careers, and collaborate with fellow specialists. ARX values individuals. Believing their brilliance and determination will provide solutions to tomorrow's challenges, we welcome professionals who will both benefit from and enrich our team.
 
 
 ARX, marks a significant expansion into the Middle East with our offices in UAE and KSA. This establishment underscores our dedication to innovation and engineering excellence, bolstering our position in the dynamic GCC market.
 
 
 For our office in Riyadh, we are looking for
 
 
 
 Senior Materials Engineer
 
 
 
 ARX is recruiting a Senior Materials Engineer to support the delivery of major PMC road and infrastructure projects within Riyadh. This role is ideal for a senior professional with strong experience in materials engineering, quality assurance, and laboratory/testing oversight within a PMC/consultancy environment. You will act as the technical authority for materials compliance across multiple projects, ensuring adherence to specifications, standards, and quality requirements.
 
 
 
 KEY RESPONSIBILITIES:
 
 
 
 <ul>
 <li>
 Lead materials engineering scope across the program, ensuring compliance with specifications and standards.
 </li>
 <li>
 Review and approve material submittals, mix designs, method statements, and ITPs.
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 Oversee testing and quality control for asphalt, concrete, aggregates, soil, and pavement materials.
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 Supervise laboratory operations, field testing, and inspection activities.
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 Monitor contractor compliance with QA/QC requirements and project specifications.
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 Lead resolution of NCRs, technical issues, and material-related site challenges.
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 Coordinate with design, construction, and supervision teams to ensure material suitability.
 </li>
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 Support audits, reporting, and handover documentation.
 </li>
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 Mentor materials engineers and inspectors across packages.
 
 
 </li>
 </ul>
 
 Requirements:
 
 
 
 <ul>
 <li>
 Bachelor's degree in Civil Engineering or Materials Engineering.
 </li>
 <li>
 Minimum 15 years of experience in materials engineering for road/highway or infrastructure projects.
 </li>
 <li>
 Strong experience in asphalt, concrete, pavement, and soil testing.
 </li>
 <li>
 Experience working within PMC/consultancy or supervision roles.
 </li>
 <li>
 Familiarity with international and Saudi standards (AASHTO, ASTM, MOT, etc.).
 </li>
 <li>
 Strong reporting, coordination, and communication skills.
 </li>
 <li>
 English required (Arabic is an advantage).
 
 
 </li>
 </ul>
 
 We Offer:
 
 
 
 <ul>
 <li>
 Opportunity to collaborate with a forward-thinking, synergistic, and innovative team.
 </li>
 <li>
 Exposure to cutting-edge projects driving Middle East / North African regions development.
 </li>
 <li>
 Personalized professional growth and developmental avenues tailored to your career aspirations.
 
 
 </li>
 </ul>
 If you would you like to join our highly motivated and very successful team please send us your complete application!
 
 
 Sector: Construction/Civil Engineering
 
 
 Role: Engineering
 
 
 Will manage other people: Yes
 
 
 Job type: Permanent job
 
 
 Career level: Employee
</div>

Senior Materials Engineer - 100% (m/f)

Explore 801+ Senior mechanical engineer in Riyadh this April. Find roles across top companies and apply now to boost your career.

801 senior mechanical engineer jobs In Riyadh

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Senior Materials Engineer - 100% (m/f)