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design engineer mechanical

AECOM

<div><b>Company Description</b><p><b><br>
Work with Us. Change the World.</b></p><p>
At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world&rsquo;s most complex challenges and build legacies for future generations.</p><p>
There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.</p><p>
We're one global team driven by our common purpose to deliver a better world. Join us.</p><b><br>
Job Description</b><p><br>
We are seeking a detail-oriented and analytical Design Engineer - Mechanical to join our team in Riyadh, Saudi Arabia. In this role, you will be responsible for designing, developing, and improving mechanical systems and components for our cutting-edge products.</p><ul><li>
Create and modify 3D models and 2D drawings using CAD software</li><li>
Conduct Finite Element Analysis (FEA) to evaluate and optimize designs</li><li>
Develop and improve product designs, ensuring manufacturability and cost-effectiveness</li><li>
Collaborate with cross-functional teams to define product specifications and requirements</li><li>
Prepare technical documentation, including design reports and manufacturing instructions</li><li>
Troubleshoot design issues and implement effective solutions</li><li>
Stay up-to-date with industry trends, standards, and regulations</li><li>
Participate in design reviews and present engineering concepts to stakeholders</li></ul><br>
<b>
Qualifications</b><br>
<ul><li>
Bachelor's degree in Mechanical Engineering or related field</li><li>
10 years of experience in mechanical design engineering</li><li>
Proficiency in CAD software, such as SolidWorks or AutoCAD</li><li>
Experience with Finite Element Analysis (FEA) and 3D modeling</li><li>
Strong knowledge of product design and development processes</li><li>
Excellent problem-solving skills and attention to detail</li><li>
Ability to create clear and concise technical documentation</li><li>
Understanding of manufacturing processes and materials science</li><li>
Familiarity with industry standards and regulations</li><li>
Strong organizational and time management skills</li><li>
Excellent communication and teamwork abilities</li><li>
Willingness to adapt to changing project requirements and deadlines</li></ul><br>
<b>
Additional Information</b><div></div><p><b><br>
About AECOM</b></p><p>
AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&amp;D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.</p><p>
AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients&rsquo; complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle &ndash; from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com.</p><p><b>
What makes AECOM a great place to work</b></p><p>
You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you&rsquo;ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you&rsquo;ve always envisioned. Here, you&rsquo;ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity.</p><p>
As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.</p></div>

Design Engineer - Mechanical

JASARA PMC

JASARA PMC is looking for a dedicated Senior Mechanical Engineer to enhance our engineering team. In this role, you will lead mechanical engineering projects, ensuring the design and execution of innovative and sustainable mechanical systems. You will closely collaborate with project managers, clients, and multidisciplinary teams to deliver high-quality engineering solutions on time and within budget. This position provides a unique opportunity to contribute to major projects while advancing your career in a supportive and dynamic environment.
<br><br>
<b>Requirements:</b><br>
<ul>
<li>Bachelor's or Master's degree in Mechanical Engineering or a related field.</li>
<li>At least 8-10 years of experience in mechanical engineering, preferably in a consultancy environment.</li>
<li>Strong knowledge of HVAC, plumbing, and fire protection systems.</li>
<li>Proficiency in relevant engineering design software (e.g., AutoCAD, Revit).</li>
<li>Experience with project management and leading engineering teams.</li>
<li>Ability to conduct feasibility studies and risk assessments.</li>
<li>Excellent communication and teamwork skills.</li>
<li>Detail-oriented with strong analytical and problem-solving capabilities.</li>
<li>Professional engineering license is a plus.</li>
</ul>
<b>Benefits:</b><br>
<ul>
<li>Competitive salary and benefits package</li>
<li>Opportunity to work in a dynamic and growing organization.</li>
<li>Make a real impact on Jasara's cybersecurity posture</li>
<li>Be part of a collaborative and supportive team</li>
</ul>


Senior Mechanical Engineer

Qiddiya | القدية

<div>
 Qiddiya Investment Company is excited to announce an opening for the position of Manager - Mechanical Engineer - Facilities Management for Six Flags and Aquarabia.
 <br/>
 <br/>
 The Manager - Mechanical Engineer will lead the mechanical engineering function within the Facilities Management department, overseeing the operation, maintenance, and performance of mechanical systems across Six Flags and Aquarabia. This includes HVAC systems, water features, ride-related infrastructure, and building services. The role ensures systems are reliable, safe, and compliant with operational and regulatory standards.
 <br/>
 <br/>
 <strong>
  Key Responsibilities
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Lead and supervise mechanical maintenance teams in the inspection, servicing, and repair of HVAC, pumps, compressors, and ride-related systems
  </li>
  <li>
   Manage the technical handover and commissioning of mechanical systems from the development and delivery teams
  </li>
  <li>
   Provide expert guidance on mechanical system design reviews, upgrades, and lifecycle planning
  </li>
  <li>
   Ensure optimal performance and energy efficiency of mechanical systems through data analysis and continuous improvement initiatives
  </li>
  <li>
   Develop and implement preventive and predictive maintenance programs
  </li>
  <li>
   Coordinate with internal stakeholders and external contractors to resolve complex mechanical issues
  </li>
  <li>
   Maintain compliance with safety, environmental, and operational regulations
  </li>
  <li>
   Prepare technical reports, maintenance records, and performance dashboards
  </li>
  <li>
   Support emergency response and critical system recovery efforts
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Requirements
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Bachelor's Degree in Mechanical Engineering; Master's degree or professional certification (e.g., PMP, LEED, CFM) is a plus
  </li>
  <li>
   Minimum 5 - 8 years of experience in mechanical engineering, with at least 3 years in a senior or supervisory role
  </li>
  <li>
   Proven experience in theme parks, hospitality, or large-scale entertainment venues is highly desirable
  </li>
  <li>
   Strong knowledge of HVAC, hydraulic and pneumatic systems, building automation, and water treatment systems
  </li>
  <li>
   Proficient in engineering software and maintenance management systems
  </li>
  <li>
   Excellent leadership, communication, and problem-solving skills
  </li>
  <li>
   Fluent in English and Arabic
  </li>
  <li>
   Core Competencies
  </li>
  <li>
   Strategic Planning &amp; Execution
  </li>
  <li>
   Technical Leadership &amp; Mentorship
  </li>
  <li>
   Safety &amp; Regulatory Compliance
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Benefits
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   The opportunity to be part of one of Saudi Arabia's most ambitious city developments
  </li>
  <li>
   A role dedicated to a specific residential asset type, allowing you to build deep expertise in your area
  </li>
  <li>
   A fast-paced, high-impact environment where strategic thinking and execution excellence are highly valued
  </li>
  <li>
   Collaboration with global industry leaders in real estate development, architecture, and planning
  </li>
 </ul>
</div>


Manager - Mechanical Engineer - Facilities Management - CDUP 2069 CDU12

Qiddiya Investment Company

<div><p>Qiddiya Investment Company is excited to announce an opening for the position of Manager - Mechanical Engineer &ndash; Facilities Management for Six Flags and Aquarabia.
</p><p>The Manager - Mechanical Engineer will lead the mechanical engineering function within the Facilities Management department, overseeing the operation, maintenance, and performance of mechanical systems across Six Flags and Aquarabia. This includes HVAC systems, water features, ride-related infrastructure, and building services. The role ensures systems are reliable, safe, and compliant with operational and regulatory standards.</p><p></p><h3 class="jobSectionHeader"><b>
Key Responsibilities</b></h3><ul>
<li>Lead and supervise mechanical maintenance teams in the inspection, servicing, and repair of HVAC, pumps, compressors, and ride-related systems.</li>
<li>Manage the technical handover and commissioning of mechanical systems from the development and delivery teams.</li>
<li>Provide expert guidance on mechanical system design reviews, upgrades, and lifecycle planning.</li>
<li>Ensure optimal performance and energy efficiency of mechanical systems through data analysis and continuous improvement initiatives.</li>
<li>Develop and implement preventive and predictive maintenance programs.</li>
<li>Coordinate with internal stakeholders and external contractors to resolve complex mechanical issues.</li>
<li>Maintain compliance with safety, environmental, and operational regulations.</li>
<li>Prepare technical reports, maintenance records, and performance dashboards.</li>
<li>Support emergency response and critical system recovery efforts.</li>
</ul><p><b>
Requirements</b></p><ul>
<li>
Bachelor&rsquo;s Degree in Mechanical Engineering; Master&rsquo;s degree or professional certification (e.g., PMP, LEED, CFM) is a plus.</li>
<li>Minimum 5 - 8 years of experience in mechanical engineering, with at least 3 years in a senior or supervisory role.</li>
<li>Proven experience in theme parks, hospitality, or large-scale entertainment venues is highly desirable.</li>
<li>Strong knowledge of HVAC, hydraulic and pneumatic systems, building automation, and water treatment systems.</li>
<li>Proficient in engineering software and maintenance management systems.</li>
<li>Excellent leadership, communication, and problem-solving skills.</li>
<li>Fluent in English and Arabic
</li><li>Core Competencies</li>
<li>Strategic Planning &amp; Execution</li>
<li>Technical Leadership &amp; Mentorship</li>
<li>Safety &amp; Regulatory Compliance</li>
</ul><p><b>
Benefits</b></p><ul>
<li>The opportunity to <b>be part of one of Saudi Arabia&rsquo;s most ambitious city developments</b>.</li>
<li>A role dedicated to a <b>specific residential asset type</b>, allowing you to build deep expertise in your area.</li>
<li>A fast-paced, high-impact environment where <b>strategic thinking and execution excellence</b> are highly valued.</li>
<li>Collaboration with <b>global industry leaders</b> in real estate development, architecture, and planning</li></ul></div>

Confidential Government

<div>
 <p>
  <strong>
   Senior Principal MEP Engineer (Mechanical, Electrical &amp; Plumbing)
  </strong>
  for
  <strong>
   vertical assets (hospitality + mix-use offices)
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Integration of modern MEP systems into constrained brownfield sites with legacy utilities and adjacent heritage assets.
  </li>
  <li>
   Utility diversion and upgrade expertise: substation relocation, and stormwater retrofits in dense urban cores.
  </li>
  <li>
   Design for adaptive reuse of heritage buildings with modern HVAC, electrical, and plumbing while respecting fabric integrity
  </li>
  <li>
   Advanced HVAC solutions for Riyadh&rsquo;s arid climate: high-efficiency chillers, DOAS, displacement ventilation, and hybrid systems.
  </li>
  <li>
   Expertise in vertical transportation systems (lifts, escalators) integrated with TOD nodes.
  </li>
  <li>
   Coordination of mix-use cores (hospitality, offices, retail) with distinct but interconnected MEP demands.
  </li>
  <li>
   Fire &amp; life safety engineering: smoke extraction, fire suppression, and evacuation systems tailored to high-rise mix-use codes.
  </li>
  <li>
   Design of smart mobility infrastructure (EV charging, micromobility docking, autonomous shuttle readiness).
  </li>
  <li>
   Energy modeling &amp; optimization: net-zero-ready MEP design, renewable integration (solar PV, greywater reuse).
  </li>
  <li>
   Water stewardship in arid contexts: low-flow fixtures, greywater recycling, district water management.
  </li>
  <li>
   Experience with carbon footprint assessment of MEP systems across lifecycle.
  </li>
  <li>
   BIM-MEP proficiency (Revit MEP, Navisworks Manage, Dynamo for MEP workflows).
  </li>
  <li>
   Use of CFD modeling for airflow, smoke control, and microclimate comfort.
  </li>
  <li>
   Familiarity with energy simulation platforms (IESVE, DesignBuilder, EnergyPlus).
  </li>
  <li>
   Capability in GIS integration for infrastructure mapping in complex brownfield sites.
  </li>
  <li>
   Oversight of MEP system installation sequencing in tight heritage-adjacent environments.
  </li>
  <li>
   Strong knowledge of prefabricated / modular MEP systems for high-rise construction.
  </li>
  <li>
   Experience with commissioning, retro-commissioning, and facility handover for large-scale hospitality and office towers.
  </li>
  <li>
   Value engineering without compromising heritage and TOD requirements.
  </li>
 </ul>
 <li>
 </li>
 <p>
  15&ndash;20 years professional experience in MEP design and delivery for hospitality and mix-use vertical assets.
 </p>
 <ul>
  <li>
   Bachelor&rsquo;s or Master&rsquo;s in Mechanical / Electrical Engineering, Building Services, or MEP Engineering.
  </li>
  <li>
   Chartered Engineer (CIBSE, ASHRAE, IEEE, or equivalent)
  </li>
  <li>
   Proven expertise in brownfield urban regeneration projects, ideally in the GCC region.
  </li>
  <li>
   Demonstrated success integrating heritage-sensitive MEP retrofits with modern high-rise systems.
  </li>
 </ul>
 <p>
 </p>
</div>


MEP Project Engineer Principal

L&T Technology Services Ltd.

<div><div><div>Process Engineer - Industrial (WET IC)</div><p>LNT/PE-I/1530262</p><ul>
WET-Water &amp; Effluent Treatment ICRiyadh</ul></div><div><div><div><ul><div><div><div>
Posted On</div><div>
24 Oct 2025</div></div></div><div><div><div>
End Date</div><div>
22 Apr 2026</div></div></div><div><div><div>
Required Experience</div><div>
5 - 15 Years</div></div></div></ul></div></div></div></div>
<br><div><div><div>Skills</div></div><div><div><p>
Knowledge &amp; Posting Location</p><div><p>
ENGINEERING
</p><p>INDUSTRIAL WATER TREATMENT
</p></div></div><div><p>Minimum Qualification</p><div><p>
BACHELOR OF TECHNOLOGY (BTECH)</p></div></div></div></div>
<br><div><div><div>Job Description</div></div><div><p>
&#9989; Key Responsibilities &ndash; <b>Process Engineer</b></p><ul><li><p>
Develop complete process design deliverables including Process Flow Diagrams (PFDs), Piping &amp; Instrumentation Diagrams (P&amp;IDs), Hydraulic Profiles, Mass &amp; Energy Balances, and design calculations for pumps, blowers, membranes, and chemical systems.</p></li><li><p>
Perform membrane and treatment process design using tools such as <b>WAVE, IMSDesign, ROSA, AFT Fathom</b>, or manual calculation for RO, UF/MF, MBR, Clarifier, Filtration, Disinfection, and Sludge Handling processes.</p></li><li><p>
Conduct chemical dosing design for coagulation, flocculation, pH correction, anti-scalant, chlorination, sodium hypochlorite, acid/alkali cleaning, etc., ensuring accurate reagent consumption and storage sizing.</p></li><li><p>
Coordinate process requirements with <b>Mechanical, Electrical, Instrumentation, Civil, and Automation</b> teams to ensure proper equipment selection, layout compatibility, and control logic integration.</p></li><li><p>
Participate in <b>HAZOP, Risk Assessment, Design Review, and Value Engineering sessions</b>, providing process safety inputs and recommending improvements.</p></li><li><p>
Assist during <b>commissioning, troubleshooting, and performance testing</b>, preparing SOPs, chemical handling procedures, and operator training materials to ensure smooth operational transition.</p></li><li><p>
Support <b>proposal/bidding phase</b> by preparing technical clarifications, process compliance statements, energy consumption estimates, and process guarantee calculations as required by client specifications.</p></li></ul></div></div>

Process Engineer - Industrial (WET IC)

Ladun 

<p>Job Advertisement: Mechanical BIM Engineer</p><p>Requirements:</p><p>Degree: Must have a bachelor's degree in Mechanical Engineering or a related field.</p><p>Work Experience: Experience in construction contracting companies is preferred.</p><p>Years of Experience: Minimum of 7 years.</p><p>Required Software: Proficiency in AutoCAD, Revit, and other BIM-related software.</p><p>Relevant Keywords: Mechanical Systems, MEP Coordination, Shop Drawings, BIM, Material Packages, Technical Office.</p><p>If you are interested, please send your CV to [career@ladun.sa] with &quot;Mechanical BIM Engineer&quot; in the subject line.</p><p>Job Type: Full-time</p>

Mechanical BIM Engineer

Explore 1039+ Design engineer mechanical in Riyadh Saudi Arabia this November. Find roles across top companies and apply now to boost your career.

1039 design engineer mechanical jobs IN Riyadh Saudi Arabia

Design Engineer - Mechanical

Senior Mechanical Engineer

Manager - Mechanical Engineer - Facilities Management - CDUP 2069 CDU12

Manager - Mechanical Engineer - Facilities Management - CDUP 2069 CDU12

MEP Project Engineer Principal

Process Engineer - Industrial (WET IC)

Mechanical BIM Engineer