Mechanical Engineer (Water/Wastewater)
Automationtechies
Mechanical Engineer
We are seeking a Mechanical Engineer with experience in water and wastewater systems to support complex infrastructure and utility projects. This role will focus on the design, review, and delivery of mechanical systems including pumps, piping, valves, filtration systems, and treatment equipment.
The engineer will work on projects from design through commissioning and will collaborate with clients, contractors, and multidisciplinary engineering teams to ensure projects meet safety, quality, and regulatory standards.
Key Responsibilities:
- Design and support water/wastewater mechanical systems
- Develop and review technical documents, calculations, layouts, and equipment specifications
- Support installation, commissioning, and project handover activities
- Coordinate with clients, contractors, suppliers, and internal engineering teams
- Perform technical reviews and help resolve engineering issues
- Mentor junior engineers and provide technical leadership when needed
Qualifications:
- Degree in Mechanical Engineering or related field
- Experience in water, wastewater, utilities, or process industries
- Strong knowledge of pumps, hydraulics, piping systems, and treatment processes
- Experience supporting projects in regulated or safety-critical environments
- Familiarity with design tools such as AutoCAD, BIM, or 3D modeling is a plus
- Strong communication and problem-solving skills
This role may involve occasional travel and site support in industrial or manufacturing environments.
- Needed Immediately: Process Engineer in Fountain Valley, CA. This role is responsible... ...osmosis (RO). The Senior Process Mechanical Engineer will coordinate closely... ...Minimum 10-15 years of experience in wastewater treatment and water reclamation facility design. Demonstrated...SuggestedImmediate start
$100k - $110k
...sustainable solutions for industrial air, water, and energy transition. Since 1966, we... ...stewardship. The High-Spec Water Mechanical Engineer is responsible for the design,... ...assurance, and delivery of complex water and wastewater mechanical systems across high value,...SuggestedFor contractorsLocal area$108k - $170k
...Senior Project Engineer – Water Treatment The importance of water to the health of our world... ...planning, and/or design of Water and Wastewater treatment infrastructure projects,... ...Bachelor's degree in civil, Environmental, Mechanical or Chemical Engineering from an ABET...SuggestedContract workFor contractorsWork at office$90.92k - $158.24k
...delivering sustainable design, engineering, and consultancy solutions... ...the future of resilient water systems—and we're proactively... ...increasing demands on water and wastewater systems, our Water Business... ...Collaborate with process, mechanical, and instrumentation and control...SuggestedFull timePart timeImmediate start$118k - $161k
...Caldwell (BC) has an exciting opportunity for a Senior Electrical Engineer to support our team in Hawaii. We are looking for a candidate... ...who perform industrial and municipal electrical, and other water/wastewater work. Position can be based anywhere in the Pacific or...SuggestedContract workTemporary workFor contractorsWork at officeLocal areaRemote workRelocation package2 days per week3 days per week$110k - $150k
...Ardurra is seeking a Senior Electrical Engineer - Water/Wastewater to join our team ideally in Irvine, CA ., but could be based out of any of our California offices. Ardurra strongly believes in and understands the importance of balancing work and personal life. Our...Contract workFor contractorsWork from home- Selectek is seeking a Process Engineer in Fountain Valley, CA, to lead the development of process designs for wastewater treatment facilities. This role requires extensive experience in process modeling and a strong understanding of biological treatment systems. The ideal...
$120k - $160k
An environmental engineering firm is seeking a Mid Level Instrumentation and Control Engineer in Costa Mesa, California. The role involves developing I&C designs for water and wastewater facilities, leading projects, and mentoring junior engineers. The firm offers a salary...Flexible hours$103.5k - $181.1k
...possible. Job Description: Join Our Team: Principal Mechanical Engineer - Water Group Location: Pasadena, CA (with initial assignment... ...Engineer to lead and innovate in the design of cutting-edge wastewater treatment facilities. Join an established engineering...For contractorsLocal areaWorldwideFlexible hours$55k - $85k
Carollo Engineers, Inc. is seeking a Field Professional/Engineer in Costa Mesa, California, to enhance our Southern California Construction... ...a relevant field and possess up to 5 years of experience in water/wastewater projects. The compensation range is $55,000 to $85,000...Contract workFor contractors- ...In this role you will have the opportunity to: Lead Electrical design for water/wastewater projects Provide technical guidance on client standards and expectations to engineering and technician staff in the regional design centers that are supporting project detailed...Work experience placementWork at officeLocal areaRemote workWorldwideRelocationFlexible hours
$130k - $200k
...Job Description Job Description Job Title: Senior Water/Wastewater Conveyance Project Manager Job Description This Senior-level Water... ...The position is ideal for a California-licensed Professional Engineer who enjoys remaining deeply involved in technical work while...Permanent employmentFull timeFor contractorsWork at officeFlexible hours$126.4k - $189.6k
...Communities everywhere share the need for clean water. And as they work to meet that need,... ...the electrical discipline designing and engineering impactful projects that range in size... ...systems, particularly in water/wastewater applications. #ElectricalH2O Your Key...Full timeTemporary workPart timeFor contractorsFor subcontractorCasual workWork at officeLocal areaFlexible hours$130k - $170k
Carollo Engineers, Inc. is seeking an Instrumentation and Control Engineer in Costa Mesa, California. This role demands expertise... ..., mentoring employees, and managing project components in water and wastewater treatment facilities. The compensation ranges from $130,000...- ...you will have the opportunity to: Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional... ...community benefits. Our Team of over 200 process engineers support water, industrial, next generation agriculture, LNG, hydrogen,...Full timeWork experience placementWork at officeLocal areaFlexible hours
$129.26k - $194.15k
...Description Job Description Who We Are: West Yost is a water resource management and engineering firm focused exclusively on water. Since our founding... ...water districts to plan, design, and deliver water, wastewater, and stormwater solutions that support safe, reliable,...Full timeContract workTemporary workWork experience placementWork at officeLocal areaRemote workFlexible hoursNight shiftAfternoon shift$70k - $300k
...Mechanical Engineer Field AI is transforming how robots interact with the real world. We are building risk-aware, reliable, and field-ready... ...solutions with gaskets, seals, membranes, and coatings to meet water/dust ingress standards. Thermal Management: Incorporate...Contract workRemote work- ...Job Description Job Description Ardurra is seeking a Wastewater Treatment Engineering Lead to join our team ideally in Irvine, CA. , but... ...market. This role will involve collaborating with local water professionals to develop and implement an innovative business...Local areaWork from home
- ...PACE is seeking a Civil/Environmental Engineer with 5 – 15 years of experience focused in... ...planning, design, and permitting of sustainable water resources; specifically relating to the treatment, conveyance, and storage of wastewater, recycled water, and potable water. The...For contractorsWork experience placementCasual workLocal areaRelocationLong distance
- ...from qualified, responsible, self-sufficient, energetic Water Resources Senior Project Engineers for our Irvine,California office. The ideal candidate... ...systems, major dam and reservoir studies, potable and wastewater systems, water treatment and surface water modeling...Temporary workWork at officeLocal areaWorldwideFlexible hours
$85k
About the Opportunity: Saratech is seeking a Mechanical Engineer II to carry out engineering assignments involving the planning, design, and testing of mechanical equipment, systems, and processes. This role requires close collaboration with cross-functional teams and provides...Full timeTemporary workPart timeWork at officeLocal area$133.02k
...Unit: TSU Job Description: CDM Smith is a multi-discipline engineering and architectural firm. Our firm is responsible for large-scale flood protection projects, water supply, water and wastewater plant design, transit facilities, and industrial facilities. As a...Full timeContract workFor contractorsH1bRemote work$115k - $149k
...infrastructure consulting firm providing civil engineering and surveying services across California... ...area, BKF has served transportation, water resources, land development, government,... ...projects, including stormwater and wastewater systems such as pipelines, pump stations...Work at officeLocal areaFlexible hours- ...Senior Project Engineer BKF is a multi-service infrastructure consulting firm providing... ...area, BKF has served transportation, water resources, land development, government,... ...infrastructure projects, including stormwater and wastewater systems such as pipelines, pump stations...
$120k - $145k
...more efficient use of traditional and renewable power. Their engineering team develops modular battery technology for dense environments... ..., and performance matter. We are hiring a hands-on Mechanical Engineer to design and deliver next-generation Battery Energy...$91.48k
...Job Description: CDM Smith is an engineering and construction firm delivering legendary... ...manufacturing facilities, hospitals, and water systems. The focus is on sustainability,... ...and studies, HVAC and plumbing systems, mechanical systems such as co-generation, and centralized...Full timeH1bLocal areaRelocation packageFlexible hours$83.25k - $138.55k
...Position Summary Job Title: Manufacturing Engineer II - Mechanical Job Code: 208602 Department: Engineering Process - Manufacturing Job Location: Irvine, CA At Parker Aerospace, we develop technologies and innovative solutions that enable...Permanent employmentTemporary workFor contractors- ...Job Title: Development Engineer/ Mechanical Engineer Job Location: Irvine, CA/ San Jose, CA Job Description: Assist in the design and development of high-power connectors and cable assemblies Create and maintain 3D CAD models and drawings using SolidWorks...
- ...Job Description Job Description Traveling Civil Engineer Concrete Foundations & Water Tank Projects Location: Nationwide (Up to 80% Travel) Company: United Industries Group, Inc. (UIG) Bilingual (SPANISH) Preferred Build critical infrastructure. Travel...Daily paidFor contractors
$150k - $170k
...Job Description Job Description Thermal/Mechanical Engineer Location: California Reports To: Vice President, Systems Engineering Salary Range: $150,000 – $170,000 Overview We are seeking a highly skilled Thermal/Mechanical Engineer to join a leading...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineer (Water/Wastewater). Be the first to apply!




