Process Engineer, Water/Wastewater Jobs

Find senior-level Process Engineer, Water/Wastewater opportunities on Ladders. These roles focus on designing, improving, and supporting the systems that treat drinking water and wastewater for communities, utilities, and industry. Explore vetted jobs with salaries of $100,000 or more, including positions in process design, treatment optimization, engineering, and technical leadership.

What Water and Wastewater Process Engineers Do

Water and wastewater process engineers develop and refine treatment processes to meet public health, environmental, operational, and regulatory requirements. Depending on the role, they may evaluate treatment technologies, develop process calculations and design criteria, review engineering plans, troubleshoot plant performance, and guide upgrades to existing facilities. They often work with multidisciplinary teams that include civil, mechanical, electrical, and environmental engineers, as well as operators, project managers, and clients.

Common Responsibilities and Specialties

Responsibilities can include designing or evaluating treatment trains, conducting process modeling, preparing technical reports and specifications, supporting pilot studies, and optimizing chemical, biological, or physical treatment operations. Specialists may work in drinking water treatment, industrial water reuse, desalination, biological wastewater treatment, nutrient removal, sludge processing, or advanced treatment. Senior positions may also involve project delivery, client relationships, mentoring, and technical reviews.

Skills and Qualifications Employers Seek

Employers commonly look for a degree in environmental, chemical, civil, or a related engineering discipline, along with experience in water or wastewater treatment. Relevant capabilities may include process design, hydraulic and mass-balance calculations, treatment modeling, regulatory knowledge, technical writing, and collaboration across engineering disciplines. A Professional Engineer (PE) license may be preferred or required for roles involving engineering oversight or approval; requirements vary by employer and location.

Explore Senior Water/Wastewater Engineering Careers

Use Ladders to explore vetted Process Engineer, Water/Wastewater jobs with compensation of $100,000 or more. Compare opportunities by specialization, seniority, and location, and find roles where your process engineering expertise can contribute to reliable water infrastructure and effective treatment systems.

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$90K - $110K *

Lead the charge in designing complex low voltage industrial control systems, collaborating with cross-functional teams to deliver innovative solutions for water treatment projects while mentoring juni...

Oakville, ONIn-Person

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$90K - $110K *

Transform your career by leading cross-functional teams in designing complex electrical and instrumentation systems for water technologies. Mentor junior engineers while ensuring project success throu...

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$88K - $159K *

Drive impactful water management solutions by leading comprehensive projects in planning, design, and construction for drinking water systems. Collaborate with diverse stakeholders to tackle both rout...

4 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$88K - $159K *

Champion innovative water management solutions by leading projects in planning, design, and construction for drinking water systems. Collaborate with diverse teams to address community-wide challenges...

4 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$88K - $159K *

Transform water management by leading comprehensive projects in planning, design, and construction for drinking water systems. Collaborate with diverse stakeholders to address both routine and complex...

4 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$88K - $159K *

Lead the charge in managing comprehensive water services, overseeing planning, design, and construction for drinking water systems. Address diverse challenges from routine supply to complex treatment...

4 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$88K - $159K *

Champion comprehensive water services by managing planning, design, and construction for drinking water systems. Address diverse challenges from routine supply to complex treatment, ensuring effective...

4 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$88K - $159K *

Take ownership of comprehensive water services management, overseeing planning, design, and construction for drinking water systems. Address diverse challenges, from routine supply to complex treatmen...

4 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$110K - $125K *

Lead the charge in designing innovative electrical and control systems for water technologies. Collaborate with cross-functional teams to ensure project success, meeting quality, budget, and schedule...

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$110K - $125K *

Join a team that's shaping the future of water technologies by leading EI&C design efforts. Collaborate with cross-functional teams to deliver innovative solutions, ensuring quality and safety while m...

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$110K - $125K *

Develop innovative EI&C designs for water technologies, collaborating with cross-functional teams to meet project goals, manage risks, and ensure quality while supporting production facilities and cus...

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$110K - $125K *

Shape the future of water technologies by leading EI&C design efforts. Collaborate with cross-functional teams to deliver innovative solutions, ensuring quality and safety while managing project risks...

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$110K - $125K *

Drive innovative EI&C designs for water technologies, collaborating with cross-functional teams to meet project goals, manage risks, and ensure quality and safety in electrical and instrumentation sys...

Oakville, ONIn-Person

1 week ago

  •   5 - 7 years exp.  •   Energy & Utilities

$85K - $100K *

Lead the charge in optimizing manufacturing processes, enhancing production efficiency, and resolving technical challenges in a dynamic CNC environment. Collaborate with teams to ensure quality and su...

Guelph, ONIn-Person

1 week ago

  •   Less than 5 years exp.  •   Manufacturing & Automotive

$95K - $115K *

Empower operational excellence by providing technical expertise in process engineering. Collaborate cross-functionally to optimize refinery performance, enhance safety, and drive reliability improveme...

2 weeks ago

  •   Less than 5 years exp.  •   Energy & Utilities

$131K - $195K *

Join a team that's shaping the future of water resources through innovative engineering leadership. Drive complex infrastructure projects from concept to completion while mentoring talent and fosterin...

Burnaby, BCIn-Person

1 week ago

  •   8 - 10 years exp.  •   Technical Services

$110K - $130K *

Lead the charge in designing and developing advanced electrical systems for analytical instruments, collaborating across disciplines to ensure seamless integration from concept to production while men...

3 weeks ago

  •   5 - 7 years exp.  •   Consumer Technology

$65K - $100K *

Support environmental solutions by managing projects in solid waste engineering. Collaborate with clients and develop junior staff while ensuring compliance and sustainability in landfill and facility...

3 days ago

  •   Less than 5 years exp.  •   Technical Services

$80K - $120K *

Transform environmental compliance and management practices by leveraging your engineering expertise. Collaborate with a dynamic team to support solid waste and utility projects while enhancing your p...

2 weeks ago

  •   Less than 5 years exp.  •   Technical Services

$100K - $120K *

Elevate your career as a Senior Hydrogeologist, leading diverse projects and collaborating with multi-disciplinary teams to deliver high-quality solutions while fostering a strong safety culture and s...

Markham, ONIn-Person

Today

  •   11 - 15 years exp.  •   Technical Services

$100K - $120K *

Bring your expertise to a dynamic team as a Senior Hydrogeologist, leading diverse projects, mentoring staff, and ensuring high-quality hydrogeological solutions while promoting safety and client enga...

Waterloo, ONIn-Person

Today

  •   11 - 15 years exp.  •   Technical Services

$100K - $120K *

Lead hydrogeology projects and collaborate with multi-disciplinary teams to deliver innovative solutions. Utilize your expertise to develop models, manage field programs, and ensure high-quality resul...

Ottawa, ONIn-Person

Today

  •   11 - 15 years exp.  •   Technical Services

$88K - $105K *

Lead the charge in managing solid waste projects from planning to construction, ensuring quality and compliance while collaborating with multidisciplinary teams to deliver integrated solutions for div...

2 weeks ago

  •   Less than 5 years exp.  •   Technical Services

$80K - $95K *

Optimize plant operations by leading distillation and hydrogenation projects. Collaborate with technical and operations teams to enhance efficiency, develop procedures, and ensure product quality whil...

Yesterday

  •   Less than 5 years exp.  •   Manufacturing & Automotive

$95K - $110K *

Lead impactful water and wastewater projects from inception to completion, ensuring client satisfaction and project success through effective management of scope, budget, and multidisciplinary teams...

1 week ago

  •   Less than 5 years exp.  •   Technical Services

Frequently Asked Questions (FAQ)

  • What does a Process Engineer, Water/Wastewater do?question toggle

    A Process Engineer, Water/Wastewater designs, evaluates, and optimizes processes used to treat drinking water, wastewater, and industrial water. The work may include process calculations, technology selection, plant troubleshooting, design reviews, and support for facility upgrades.

  • What qualifications are commonly required for water and wastewater process engineer jobs?question toggle

    Employers typically seek an engineering degree in environmental, chemical, civil, or a related field, plus relevant treatment-process experience. Some senior roles prefer or require a PE license, depending on the responsibilities and jurisdiction.

  • Which specialties are available in water and wastewater process engineering?question toggle

    Specialties may include drinking water treatment, wastewater treatment, industrial water and reuse, desalination, biological processes, nutrient removal, advanced treatment, and sludge processing.

  • Do Process Engineer, Water/Wastewater jobs on Ladders pay $100,000 or more?question toggle

    Ladders focuses on vetted professional jobs paying $100,000 or more. Compensation for individual positions varies by employer, location, experience, and scope of responsibility.

  • What skills can help candidates stand out for senior water/wastewater process engineering roles?question toggle

    Experience with treatment design and optimization, process modeling, engineering calculations, regulatory requirements, technical documentation, and multidisciplinary project work can be valuable. Project leadership, client communication, and a PE license may also strengthen a candidate’s qualifications.