water treatment engineer

OasisFlow Water Solutions

Job Title: Water Treatment EngineerJob Location: Al Khobar, Saudi ArabiaJob Summary: OasisFlow Water Solutions is looking for a Water Treatment Engineer to design, operate, and maintain water purification and treatment systems across industrial and municipal projects.Key Responsibilities:<ul><li>Design and oversee water treatment systems (RO, filtration, desalination)</li><li>Monitor water quality and system performance</li><li>Conduct maintenance and troubleshooting of treatment equipment</li><li>Ensure compliance with Saudi environmental regulations</li><li>Prepare technical reports and documentation</li></ul>Qualifications:<ul><li>Bachelor&rsquo;s degree in Environmental, Chemical, or Water Engineering</li><li>3&ndash;5 years of relevant experience</li><li>Knowledge of water treatment technologies</li></ul>Requirements:<ul><li>Transferable Iqama (if non-Saudi)</li><li>Familiarity with Saudi environmental standards</li></ul>Saudization: Preference will be given to Saudi nationals.Benefits:<ul><li>Competitive salary</li></ul>Employment Type: Full-Timeالراتب المدفوع: ﷼١٤٠٫٠٠&nbsp;لكل ساعةموقع العمل: بشكل شخصي

Water Treatment Engineer

<div>
 
 
 
 Company Overview
 
 :
 
 
 
 
 
 
 Dar, the founding member of the Sidara group, is an international multidisciplinary consulting organization specializing in engineering, architecture, planning, environment, project management, facilities management, and economics. Sidara operates in 60 countries with 20,500 professionals, Dar connects people, places, and communities through innovative solutions to the world's most complex challenges. We deliver projects from inception through completion, embracing challenges to empower communities worldwide. Learn more at www.dar.com.
 
 
 
 
 
 
 Our Vision and Values:
 
 
 
 
 
 
 We aspire to be the chosen home of those with a gift for crafting solutions that empower people and an unwavering passion for learning and innovation. Our core values shape our culture and guide our decision-making. We are committed to:
 
 
 
 
 <ul>
 <li>
 Excellence
 </li>
 <li>
 Responsibility
 </li>
 <li>
 Empowerment
 </li>
 <li>
 Connectivity
 </li>
 <li>
 Courage
 </li>
 </ul>
 
 
 
 
 Job Summary:
 
 
 
 
 
 We are seeking a highly skilled and experienced Infrastructure Engineer to join our dynamic team in the field of Water &amp; Wastewater treatment.
 
 
 
 
 
 As a Water and Wastewater Treatment Engineer with 5-8 years of experience, you will play an important role in our organization, contributing to the successful planning, design, and implementation of water &amp; wastewater treatment plants, including process selection, sizing calculations and water quality assessment
 
 
 
 
 
 
 
 Responsibilities
 
 :
 
 
 
 
 
 
 
 Design
 
 :
 
 <ul>
 <li>
 Utilize your expertise to develop detailed engineering designs for water and wastewater treatment plants.
 </li>
 <li>
 Ensure compliance with industry standards, regulations, and environmental guidelines.
 </li>
 </ul>
 
 
 
 
 
 Quality Assurance:
 
 
 <ul>
 <li>
 Perform thorough quality checks and reviews of engineering documents, drawings, and specifications to ensure accuracy, completeness, and compliance with project requirements.
 </li>
 <li>
 Ensure compliance with industry standards, regulations, and environmental guidelines.
 </li>
 </ul>
 
 
 
 
 
 Technical Analysis:
 
 
 <ul>
 <li>
 Conduct technical analysis and calculations to support design decisions, system performance evaluations, and optimization efforts. Use specialized software and tools to model and simulate wet utilities systems.
 </li>
 </ul>
 
 
 
 
 
 Regulatory Compliance:
 
 
 <ul>
 <li>
 Stay up to date with relevant regulations, codes, and standards related to water treatment and wastewater treatment.
 </li>
 <li>
 Ensure project designs and operations comply with applicable legal requirements and obtain necessary permits and approvals.
 </li>
 </ul>
 
 
 
 
 
 Team Collaboration:
 
 
 <ul>
 <li>
 Collaborate with multidisciplinary teams, including engineers, technicians, and project managers, to ensure seamless project execution.
 </li>
 <li>
 Foster a positive and collaborative work environment, sharing knowledge and expertise with colleagues.
 </li>
 </ul>
 
 
 
 
 
 Continuous Learning:
 
 
 <ul>
 <li>
 Stay abreast of industry trends, emerging technologies, and best practices in the Water and Environment consulting field.
 </li>
 <li>
 Participate in professional development activities, attend conferences, and pursue relevant certifications to enhance your skills and knowledge.
 </li>
 </ul>
 
 
 
 
 
 
 Requirements
 
 :
 
 
 
 
 
 <ul>
 <li>
 Bachelor's degree in civil engineering, Environmental Engineering, Chemical/Biochemical Engineering or a related field.
 </li>
 <li>
 Master's degree in civil engineering, Environmental Engineering, Chemical/Biochemical Engineering or a related field.
 </li>
 <li>
 3 to 6 years of professional experience in water and wastewater treatment process design and consultancy.
 </li>
 <li>
 Proficiency in relevant water and wastewater treatment modeling software and RO membrane projection software.
 </li>
 <li>
 Familiarity with relevant regulations, codes, and standards.
 </li>
 <li>
 Excellent Problem-solving skills and ability to analyze complex technical issues.
 </li>
 <li>
 Strong communication and interpersonal skills, with the ability to work effectively in a team environment.
 </li>
 <li>
 Experience in the Middle East and Africa is preferred.
 </li>
 </ul>
 
 
 
 
 
 
 Kind Note
 
 :
 
 
 
 
 
 
 
 * While we carefully review all applications, only candidates meeting the specified requirements will be contacted for further consideration. We appreciate your understanding and thank all applicants for their interest.
 
 
 
 
</div>

Water & Wastewater Treatment Engineer

Pure Water Technology

We are looking for candidate for Mechanical Engineer to be based in Abu Dhabi/Dubai.Candidate must have experience in Water and Waste Water Treatment field. Tasks will include but not limited to:Design, Process definition, Conceptual, Preliminary and Detailed Design (liquid, sludge and odour stream design, preparation of P&amp;ID's, Layouts, Process Flow Diagrams etc.) estimating, reviewing, commissioning, operation and process optimization.Key accountabilities for this position are:<ul><li>Works on all sizes of wastewater projects and lead multi-disciplinary teams through planning, design and construction for wastewater clients in multi-disciplinary Teams.</li><li>Design according to local utilities rules, regulations and design guides;</li><li>Perform engineering calculations and prepare detailed design drawings and specifications.</li><li>Coordinate with Electrical Engineers, Architects, Civil Engineers and Structural Engineers and any other external design consultant;</li><li>Gather information, develop and evaluate alternatives, and prepare engineering reports.</li><li>Perform other duties as assigned.</li></ul>Requirements:<ul><li>Holding Bachelor of Science in Mechanical Engineering with experience in basic engineering of desalination plants, water treatment plants, sewage treatment, industrial effluent treatment and reuse.</li><li>Minimum 5 years&rsquo; experience</li><li>Experience in design of physical/chemical water treatment.</li><li>Familiarity in site construction documentation</li><li>Excellent in team management</li></ul>Job Type: Full-timePay: From AED7,000.00 per monthWork Location: In person

Site Mechanical Engineer

King Abdullah University of Science and Technology

Department/Division: Research Translation HubJob Title: Research Translation Engineer - Water Desalination and DistributionReports to: Manager, Research TranslationPosition SummaryReporting to the Research Translation Manager, the Water Desalination &amp; Distribution Engineer will provide technical engineering expertise, design support, and research translation guidance across a broad range of water desalination, treatment, and distribution projects at KAUST. The engineer will contribute to the early-stage development, prototyping, and deployment of advanced technologies spanning seawater desalination (thermal, membrane, electrochemical), hydraulics and pipeline design, smart water distribution networks, wastewater treatment, and water chemistry processes. This role requires working collaboratively alongside researchers, engineers, technologists, and industrial partners to convert scientific innovations into functional engineered systems. Activities span early‑stage research translation, technology scale‑up, field deployment, pilot‑unit engineering, technical assessments, and system performance optimization.Major Responsibilities&middot; Lead and provide engineering support for desalination, water treatment, and water distribution research translation projects.&middot; Design, model, and optimize desalination systems including RO, MD, ED, and thermal processes.&middot; Work with the Research Translation team to prototype and fabricate desalination/hydraulics subsystems using KAUST workshops and external vendors.&middot; Evaluate performance of prototype systems and pilot units; identify improvement pathways and scaling potential.&middot; Develop and execute structured test plans for prototype and pilot systems, including KPI definition, data acquisition, and performance benchmarking against design targets&middot; Conduct design reviews ensuring alignment with engineering principles, safety standards, and project requirements.&middot; Create engineering documentation including system specifications, test plans, P&amp;IDs, process flow diagrams (PFDs), and mechanical drawings.&middot; Engage in resource recovery research, supporting development of water reuse, nutrient recycling, and energy recovery technologies.&middot; Lead and assist in developing technology maturity roadmaps (TRL-based) and conduct gap analyses for desalination/distribution innovations.&middot; Support risk assessments, troubleshooting, root‑cause analysis, and performance diagnostics for deployed systems.&middot; Contribute to project planning, cost estimation, and technical feasibility studies; track engineering milestones and communicate progress to project leads and stakeholders.Personal Requirements:Competencies&middot; Experience with RO, thermal desalination (VC, MSF, MED), electrodialysis, and membrane distillation.&middot; Understanding membrane performance, fouling behavior, and energy‑water optimization.&middot; Knowledge of high‑pressure pumping systems and membrane process hydraulics.&middot; Familiarity with brine management, disposal strategies, and environmental compliance.&middot; Knowledge of water‑network hydraulics, pipeline sizing, and pressure management.&middot; Experience using PIPENET or similar tools for hydraulic modeling.&middot; Familiarity with SCADA, IoT sensors, and real‑time monitoring for smart water networks.&middot; Knowledge of leak detection technologies and non-revenue water (NRW) reduction strategies.&middot; Understanding water reuse, nutrient recovery, and energy capture.&middot; Mechanical design of high‑pressure pipelines, pump housings, and treatment‑unit components.&middot; Ability to interpret drawings, P&amp;IDs, and mechanical schematics.&middot; Experience with pilot‑unit fabrication, commissioning, and troubleshooting.&middot; Familiarity with relevant standards and codes (e.g., AWWA, ASME, ISO 24512) for water infrastructure design&middot; Understanding activated sludge, nutrient removal, and sludge processes.&middot; Experience with MBRs, membrane fouling, and cleaning strategies.&middot; Knowledge of adsorption, photocatalysis, and advanced oxidation processes.&middot; Familiarity with water‑quality parameters and contaminant‑removal mechanisms.&middot; Ability to translate research into engineered systems and prototypes.&middot; Strong analytical, communication, and documentation skills.&middot; Ability to work across multiple projects and interdisciplinary teams&middot; Experience preparing technical reports, reviewing grant proposals, or regulatory submissionsQualifications&middot; Degree in Environmental, Chemical, Water Resources, or Mechanical Engineering with relevant industry experienceExperience&middot; 6 to 10 years of relevant research/engineering experience in an industry setting&middot; Demonstrated working knowledge in concept prototyping, skid mounted pilot plants and product development.&middot; Execute technology transfer projects, resolve processing issues, and conduct technical assessments on process/product impact due to changes in equipment, scale, and raw materials.&middot; Experience analyzing engineering diagrams, specifications, related data, and drawings to determine design factors such as scale, shape, and arrangement of unit operations.&middot; Experience with desalination process design, membrane technologies, or thermal systems.&middot; Experience in water distribution system engineering, hydraulics, or pipeline design.&middot; Demonstrated experience executing technology transfer or research translation projects, including resolving processing issues and assessing impact of changes in equipment, scale, or raw materials.&middot; Proven ability to interpret and produce engineering diagrams, mechanical layouts, and water‑process unit operations.&middot; Industry experience ensuring systems are reliable, manufacturable, and cost‑efficient.&middot; Knowledge of technology readiness levels, prototyping methodologies, and translational research pathways.Work Location: In person

Research Translation Engineer - Water Desalination and Distribution

Egis Group

<div>Company Description 
Egis is a leading global consulting, engineering, and operating firm dedicated to supporting sustainable development and enhancing the quality of life through innovative solutions. With a strong presence in over 100 countries, Egis provides expertise in the fields of transport, urban development, buildings, water, environment, and energy. Our commitment to excellence and innovation drives us to deliver cutting-edge solutions that meet the evolving needs of our clients and communities. 
 
This role is within the Water/Wastewater Team of the Water, Environment, and Energy Transition Service Line for the Middle East and South Asia Region. Our team is focused on delivering sustainable water management solutions that address the challenges of water scarcity, quality, and infrastructure resilience, contributing to a more sustainable and energy-efficient future in the region. We strive to support the region's unique needs through innovative approaches and tailored solutions. 
Job Description 
<ul><li>
Design review of Mechanical submittals.</li><li>
Detailed Design for water and wastewater treatment plants.</li></ul> 

Qualifications 
<ul><li>
BSc. Mechanical Engineering</li><li>
Min of 10 years of experience in Mechanical design</li><li>
Extensive experience in designing Transmission Pipelines and Water and wastewater treatment plants</li><li>
Familiar with GCC standards and codes</li></ul></div>

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

Gradiant

<div>
 Chemical Sales Engineer Gradiant Arabia Limited Riyadh, Saudi Arabia 5/6/26 Sales &amp; Business Development
 
 
 
 About Gradiant
 
 
 
 Gradiant is a Different Kind of Water Company. With a full suite of differentiated and proprietary end-to-end solutions for advanced water and wastewater treatment powered by the top minds in water, the company serves its clients&rsquo; mission-critical operations in the world&rsquo;s essential industries, including semiconductors, pharmaceuticals, food &amp; beverage, lithium and critical minerals, and renewable energy. Gradiant&rsquo;s innovative solutions reduce water used and wastewater discharged, reclaim valuable resources, and renew wastewater into freshwater. The Boston-headquartered company was founded at MIT and has over 1,400 employees worldwide. Discover us at gradiant.com.
 
 
 
 Role Overview
 
 
 
 The Chemical Sales Engineer / Account Manager will be responsible for supporting sales growth and customer engagement for specialty and commodity water treatment chemicals across the Kingdom of Saudi Arabia. The role involves a combination of technical sales, customer relationship management, and business development, working closely with internal technical teams and the regional sales leadership. As operations in KSA are in the early stage, the candidate is expected to work independently, supporting both commercial and coordination activities required to establish and grow the business.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 Customer Relationship Management
 </li>
 <li>
 Support development and maintenance of relationships with customers across industrial sectors.
 </li>
 <li>
 Engage with operations, maintenance, and procurement teams to understand customer requirements.
 </li>
 <li>
 Conduct regular customer visits across KSA.
 </li>
 <li>
 Technical Sales Support
 </li>
 <li>
 Assist in promoting water treatment chemical programs for:
 </li>
 <ul>
 <li>
 Cooling water
 </li>
 <li>
 Boiler systems
 </li>
 <li>
 RO and wastewater applications
 </li>
 </ul>
 <li>
 Coordinate with internal technical teams to support solution proposals.
 </li>
 <li>
 Participate in technical discussions and product presentations.
 </li>
 <li>
 Business Development Support
 </li>
 <li>
 Identify new business opportunities within existing and potential customers.
 </li>
 <li>
 Support expansion of product applications within customer facilities.
 </li>
 <li>
 Assist in preparing proposals, quotations, and follow-ups.
 </li>
 <li>
 Market Coverage
 </li>
 <li>
 Support sales activities across key industries including:
 </li>
 <ul>
 <li>
 Oil &amp; Gas
 </li>
 <li>
 Petrochemicals
 </li>
 <li>
 Power and utilities
 </li>
 <li>
 Water and wastewater sectors
 </li>
 </ul>
 <li>
 Build basic understanding of customer processes and treatment requirements.
 </li>
 <li>
 Channel &amp; Partner Coordination
 </li>
 <li>
 Work with appointed distributors and channel partners to support business growth.
 </li>
 <li>
 Participate in joint customer visits and technical discussions.
 </li>
 <li>
 Support partner engagement activities as required.
 </li>
 <li>
 Internal Coordination
 </li>
 <li>
 Coordinate with internal teams including:
 </li>
 <ul>
 <li>
 Technical support
 </li>
 <li>
 Supply chain
 </li>
 <li>
 Finance
 </li>
 </ul>
 <li>
 Assist in order processing, follow-ups, and basic reporting.
 </li>
 <li>
 Travel &amp; Field Engagement
 </li>
 <li>
 Travel extensively across KSA to support customer engagement and sales activities.
 </li>
 <li>
 Maintain active field presence to support business growth.
 
 </li>
 </ul>
 
 Requirements
 
 
 
 <ul>
 <li>
 Bachelor&rsquo;s Degree in Chemical Engineering (Mandatory)
 </li>
 <li>
 4&ndash;7 years of experience in industrial chemical sales or water treatment
 </li>
 <li>
 Experience in KSA market preferred
 </li>
 <li>
 Exposure to specialty and/or commodity chemicals
 </li>
 <li>
 Fluent in Arabic and English (Mandatory)
 </li>
 <li>
 Willingness to travel extensively across KSA
 
 
 </li>
 </ul>
 
 Key Competencies
 
 
 
 <ul>
 <li>
 Basic technical understanding of water treatment applications
 </li>
 <li>
 Strong communication and interpersonal skills
 </li>
 <li>
 Commercial awareness and willingness to learn
 </li>
 <li>
 Ability to work independently in a dynamic environment
 </li>
 <li>
 Team collaboration and coordination skills
 
 
 </li>
 </ul>
 
 Additional Notes
 
 
 
 <ul>
 <li>
 This is an individual contributor role
 </li>
 <li>
 The position requires flexibility to support multiple functions during the initial business setup phase
 </li>
 <li>
 Growth opportunities are available based on performance and business expansion
 
 
 </li>
 </ul>
 Gradiant is an equal opportunity employer. Qualified applicants will be considered without regard to race, color, religion, creed, gender, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class.
</div>

Chemical Sales Engineer

Search 9512+ Water treatment engineer jobs near you this May. New roles added regularly across leading industries. Apply today.