electrical engineer

civil engineer

environmental engineer

maintenance engineer

planning engineer

water treatment engineer

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)

Solenis

<div><div>Fabric Care and Water treatment Application Engineer</div><div>
n</div></div>

Product Development Support Analyst I

<div><div><div>Process Lead - Industrial (WET IC)</div><p>LNT/PL-I/1530254</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>
10 - 20 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><div><p>
&#9989; Key Responsibilities &ndash;</p><ul><li><p>
Lead the <b>Basis of Design (BoD), Process Philosophy, and Treatment Technology Selection</b> for Water Treatment Plants (WTP), Wastewater Treatment Plants (WWTP), STP, ETP, MBR, and Industrial Water treatment systems based on raw water quality and contractual requirements.</p></li><li><p>
Review and approve <b>PFDs, P&amp;IDs, Mass &amp; Energy Balances, Hydraulic Calculations, Equipment Sizing Sheets, Control Narratives, and Process Descriptions</b>, ensuring consistency across disciplines.</p></li><li><p>
Conduct and lead <b>HAZOP, HAZID, SIL Assessments, and Design Safety Reviews</b>, ensuring all potential operational and maintenance risks are mitigated through reliable design strategies.</p></li><li><p>
Oversee and technically evaluate vendor proposals for<b> UF Systems, Dosing Packages, Clarifiers, Aeration Systems, Sludge Dewatering Units, DAF Units</b>, and ensure compatibility with project requirements.</p></li><li><p>
Act as the <b>primary technical interface with Client, Consultant, EPC, and Internal Teams</b>, responding to technical clarifications, leading design review meetings, and presenting process justifications.</p></li><li><p>
Mentor and allocate tasks to process engineers, ensuring timely delivery of engineering outputs, adherence to standards, and proper documentation.</p></li><li><p>
Support <b>commissioning teams during start-up and performance guarantees</b>, troubleshoot process bottlenecks, optimize energy and chemical consumption, and ensure treated water meets contractual KPIs.</p></li></ul></div></div></div>

Process Lead - Industrial (WET IC)

<div><div><div>Process Lead - Desalination (WET IC)</div><p>LNT/PL-D/1502797</p><ul>
WET-Water &amp; Effluent Treatment ICRiyadh</ul></div><div><div><div><ul><div><div><div>
Posted On</div><div>
17 Oct 2025</div></div></div><div><div><div>
End Date</div><div>
15 Apr 2026</div></div></div><div><div><div>
Required Experience</div><div>
15 - 20 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></div><div><div>
 PROCESS ENGINEERING
 </div><div></div><div>OFFSHORE PROJECT MANAGEMENT
</div></div></div><div><p>Minimum Qualification</p><div><p>
BTECH</p></div></div></div></div>
<br><div><div><div>Job Description</div></div><p></p><div><p>
Key Responsibilities:</p><p>
  &#65039; Engineering Design &amp; Process Development</p><ul><li>
Develop mass and energy balances, PFDs, and P&amp;IDs for seawater RO desalination systems.</li><li>
Design and size RO trains, pumps, pretreatment units (coagulation, media filtration, UF), and post-treatment (remineralization, CO&#8322; dosing).</li><li>
Prepare detailed specifications for equipment: pressure vessels, membranes, dosing systems, and chemical treatment units.</li><li>
Analyze and optimize membrane performance using software</li><li>
Perform hydraulic calculations for multiport vessels and high-pressure piping networks.</li></ul><p>
   Technical Analysis &amp; Modeling</p><ul><li>
Conduct system simulations to predict performance under varying feedwater conditions.</li><li>
Perform recovery, energy consumption, and membrane fouling rate analysis.</li><li>
Evaluate energy recovery devices (ERDs) and design pressure exchanger systems.</li><li>
Review and analyze laboratory data, pilot trials, and membrane autopsy reports.</li></ul><p>
   Project Execution &amp; Documentation</p><ul><li>
Lead or review engineering deliverables: design reports, datasheets, BOQs, and technical specifications.</li><li>
Coordinate interdisciplinary interfaces with civil, electrical, instrumentation, and mechanical teams.</li><li>
Participate in HAZOP, design reviews (3D model reviews, RAM studies), and risk assessments.</li></ul><p>
   Commissioning &amp; Troubleshooting</p><ul><li>
Support factory acceptance testing (FAT), site acceptance testing (SAT), and commissioning.</li><li>
Diagnose and resolve process bottlenecks, membrane fouling, scaling, or plant underperformance.</li><li>
Train operations teams on membrane cleaning procedures (CIP), energy optimization, and water quality control.</li></ul></div></div><p></p>

Process Lead - Desalination (WET IC)

Larsen & Toubro

<div>
 <strong>
  Key Responsibilities
  <br/>
  <br/>
 </strong>
 🛠️ Engineering Design &amp; Process Development
 <br/>
 <br/>
 <ul>
  <li>
   Develop mass and energy balances, PFDs, and P&amp;IDs for seawater RO desalination systems.
  </li>
  <li>
   Design and size RO trains, pumps, pretreatment units (coagulation, media filtration, UF), and post-treatment (remineralization, CO₂ dosing).
  </li>
  <li>
   Prepare detailed specifications for equipment: pressure vessels, membranes, dosing systems, and chemical treatment units.
  </li>
  <li>
   Analyze and optimize membrane performance using software
  </li>
  <li>
   Perform hydraulic calculations for multiport vessels and high-pressure piping networks.
   <br/>
   <br/>
  </li>
 </ul>
 📊 Technical Analysis &amp; Modeling
 <br/>
 <br/>
 <ul>
  <li>
   Conduct system simulations to predict performance under varying feedwater conditions.
  </li>
  <li>
   Perform recovery, energy consumption, and membrane fouling rate analysis.
  </li>
  <li>
   Evaluate energy recovery devices (ERDs) and design pressure exchanger systems.
  </li>
  <li>
   Review and analyze laboratory data, pilot trials, and membrane autopsy reports.
   <br/>
   <br/>
  </li>
 </ul>
 📁 Project Execution &amp; Documentation
 <br/>
 <br/>
 <ul>
  <li>
   Review engineering deliverables: design reports, datasheets, BOQs, and technical specifications.
  </li>
  <li>
   Coordinate interdisciplinary interfaces with civil, electrical, instrumentation, and mechanical teams.
  </li>
  <li>
   Participate in HAZOP, design reviews (3D model reviews, RAM studies), and risk assessments.
   <br/>
   <br/>
  </li>
 </ul>
 🧪 Commissioning &amp; Troubleshooting
 <br/>
 <br/>
 <ul>
  <li>
   Support factory acceptance testing (FAT), site acceptance testing (SAT), and commissioning.
  </li>
  <li>
   Diagnose and resolve process bottlenecks, membrane fouling, scaling, or plant underperformance.
  </li>
  <li>
   Train operations teams on membrane cleaning procedures (CIP), energy optimization, and water quality control.
  </li>
 </ul>
</div>


Process Engineer - Desal (WET IC)

Bechtel

<div><p><b>Requisition ID: </b><b>288476</b></p><ul><li><b>
Relocation Authorized: </b><b>National/International - Single</b></li><li><b>
Telework Type: </b><b>Full-Time Office/Project</b></li><li><b>
Work Location: Riyadh</b></li></ul><p><br>
</p><div><div><div><h2 class="jobSectionHeader"><b>Extraordinary teams building inspiring projects:</b></h2></div><div><p>
Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world's infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place.</p><p>
Differentiated by the quality of our people and our relentless drive to deliver the most successful outcomes, we align our capabilities to our customers' objectives to create a lasting positive impact. We serve the Infrastructure; Nuclear, Security &amp; Environmental; Energy; Mining &amp; Metals, and the Manufacturing and Technology markets. Our services span from initial planning and investment, through start-up and operations.</p><p>
Core to Bechtel is our Vision, Values and Commitments. They are what we believe, what customers can expect, and how we deliver. Learn more about our extraordinary teams building inspiring projects in our Impact Report.</p></div></div><div><div><h2 class="jobSectionHeader"><b>
Project Overview:</b></h2></div><div><p>
Expo 2030 Riyadh is a global platform where countries, organizations, and individuals will come together to collaborate. Under the theme &ldquo;Foresight for Tomorrow,&rdquo; the Expo promotes sustainable development, innovation, and transformative thinking. The event will be held from October 2030 to March 2031 and is expected to welcome over 40 million visits.</p><p>
The 6 km&sup2; Masterplan outlines a comprehensive framework for participation and infrastructure at the Expo. The exhibition space, totaling 491,100 m&sup2; GFA, can accommodate up to 197 participating countries and 29 international organizations.<br>
Working collaboratively with our customer, Expo 2030 Riyadh Company (ERC), Bechtel will manage the infrastructure program which comprises early works, utilities, and publicly accessible spaces like streets and parks. Our scope on the six-square-kilometer site will transition into a mixed-use legacy development to serve the community after the six-month event is over. The project&rsquo;s master plan leverages international sustainability standards for urban afforestation, treated water, and energy sources.</p></div></div><div><div><h2 class="jobSectionHeader"><b>
Job Summary:</b></h2></div><div><p>
Reporting to the Engineering Manager, you will be responsible working as part of a multi-disciplinary team in the Engineering Department, You will be required to combine your technical experience and knowledge for the management of District Cooling Plan, Water / Wastewater Treatment Plant, pumping stations, desalination plant design by the client&rsquo;s design consultants. This role ensures that all designs meet technical standards, regulatory requirements, and project objectives while integrating seamlessly with other disciplines. You will lead and be accountable for the performance of the customer&rsquo;s appointed Design Consultants in the delivery of the infrastructure design in accordance with budgetary, schedule and quality requirements.</p><p>
Support the Engineering Manager (Utilities) in managing and delivering the design in accordance with the Programme and the requirements of the client. Coordinate and monitor the development of the design consultant&rsquo;s planned activities and provide progress. Plan and organize the review of the design consultant&rsquo;s deliverables, interfacing with subject matter experts and design review teams. Provide quality assessment reports to Project Management and the client. Assist the Contracts Department and Construction teams in pre-construction and post contract award activities</p><p>
Additionally, you will establish and maintain the Engineering Programme Management plans and procedures, ensure compliance with the Customer&rsquo;s project governance requirements, ensure that the technical design deliverables comply with the Customer&rsquo;s requirements, stakeholders&rsquo; requirements, local and international building code requirements.</p></div></div><div><div><h2 class="jobSectionHeader"><b>
Major Responsibilities:</b></h2></div><div><ul><li>
Management of design activities and coordination of workloads for District Cooling plan, Water projects.</li><li>
Plan, coordinate, manage and monitor the review of design deliverables produced by the client&rsquo;s design consultant, including reports, providing feedback to the Design Project Manager regarding progress, key issues and risk.</li><li>
 Coordinate and manage the design review of the design consultant&rsquo;s hazard and risk logs.</li><li>
 Coordinate the response to comments raised on deliverables by the likes of subject matter experts, the design review team, the Independent Checking Engineer, and Independent Safety Assessors.</li><li>
 Ensure the buildability of the proposed design and suitability of materials.</li><li>
Coordinate engineering efforts in assigned areas between specialty and other engineering groups or disciplines, with the client, suppliers, and</li><li>
Coordinate with civil, structural, environmental, and MEP teams to ensure integrated design solutions within the framework of Bechtel / Client requirements.</li><li>
Ensure compliance with local codes, international standards (e.g., ASCE, AWWA, ISO), and client requirements.</li><li>
Conduct technical reviews and value engineering assessments in consultation with client appointed design consultants.</li><li>
When directed, shall participate in design workshops with relevant design consultant, stakeholder meetings, and interdisciplinary coordination sessions.</li><li>
Monitor design risks and implement mitigation strategies Provide technical support during construction and respond to RFIs related to wet utilities.</li><li>
Ensure compliance with the Customer&rsquo;s project governance procedures &amp; requirements.</li></ul></div></div><div><div><h2 class="jobSectionHeader"><b>
Education and Experience Requirements:</b></h2></div><div><ul><li>
Requires bachelor's or master's degree in mechanical engineering, with overall 15 -20 years of experience and 8-10 years of relevant experience in big infrastructure project.
</li></ul></div></div><div><div><h2 class="jobSectionHeader"><b>Required Knowledge and Skills:</b></h2></div><div><ul><li>
Experience in managing the design/installation/operation/maintenance of District cooling/Water / Wastewater treatment plant, pumping stations and desalination plants.</li><li>
Experience in Hydraulic design, modelling, surge analysis, design of large diameter pipe &amp; valve for potable water network and district cooling plant.</li><li>
Experience in both design-build and design-bid-build forms of procurement with contractors and consultants.</li><li>
Experience in field construction and inspection for initial acceptance.
</li><li>Knowledge of relevant codes and standards pertinent to the discipline.</li><li>
Thorough knowledge of discipline engineering techniques, the design of engineered systems and design calculations.</li><li>
Knowledge of current computer applications for engineering and design including appropriate knowledge of CAD (both 2-D and 3-D) e.g. AutoCAD, MS Word and Excel for managing design review.</li><li>
 Understanding of the roles played by other departments on projects including basic construction practices and the economics involved.</li><li>
 A professional license from a recognized licensing or registration board is preferred.</li><li>
Strong organizational, communication, and interpersonal relationship skills at varying levels of the organization.</li><li>
Ability to work effectively under pressure with changing priorities and deadlines.</li><li>
Demonstrated ability to effectively influence outcomes and escalate issues appropriately.</li><li>
Previous, related, working experience in the middle east is highly preferred.</li><li>
Experience of working within a multicultural, highly diverse team environment is essential.</li><li>
Possesses a working knowledge of BIM processes, including experience designing projects in BIM platforms, particularly Revit and Navisworks.</li></ul></div></div><div><div><h2 class="jobSectionHeader"><b>
Total Rewards/Benefits:</b></h2></div><div><p>
For decades, Bechtel has worked to inspire the next generation of employees and beyond! Because our teams face some of the world's toughest challenges, we offer robust benefits to ensure our people thrive. Whether it is advancing careers, delivering programs to enhance our culture, or providing time to recharge, Bechtel has the benefits to build a legacy of sustainable growth. Learn more at Bechtel Total Rewards</p></div></div><div><div><h2 class="jobSectionHeader"><b>
Diverse teams build the extraordinary:</b></h2></div><div><p>
As a global company, Bechtel has long been home to a vibrant multitude of nationalities, cultures, ethnicities, and life experiences. This diversity has made us a more trusted partner, more effective problem solvers and innovators, and a more attractive destination for leading talent.</p><p>
We are committed to being a company where every colleague feels that they belong-where colleagues feel part of &quot;One Team,&quot; respected and rewarded for what they bring, supported in pursuing their goals, invested in our values and purpose, and treated equitably.</p></div></div></div><p></p><p><b><i><br>
Bechtel is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity and expression, age, national origin, disability, citizenship status (except as authorized by law), protected veteran status, genetic information, and any other characteristic protected by federal, state or local law. Applicants with a disability, who require a reasonable accommodation for any part of the application or hiring process, may e-mail their request to </i></b><b>acesstmt@bechtel.com</b></p></div>

Design Manager - Mechanical

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>

Manager - Mechanical Engineer - Facilities Management - CDUP 2069 CDU8

Explore 521+ Water treatment engineer in Riyadh this November. Find roles across top companies and apply now to boost your career.