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Wastewater Project Engineer Jobs in California (NOW HIRING)

Verdantas

Project Engineer- Water/Wastewater

Folsom, CA · On-site

$120 - $140/hr

We are seeking a Project Engineer- Water/Wastewater to join our team in the Folsom, CA office. In this role you will lead and support a variety of Civil and Water Wastewater resource planning and ...

Verdantas

Project Engineer- Water/Wastewater

Folsom, CA · On-site

$120K - $140K/yr

We are seeking a Project Engineer- Water/Wastewater to join our team in the Folsom, CA office. In this role you will lead and support a variety of Civil and Water Wastewater resource planning and ...

Verdantas

Project Engineer- Water/Wastewater

Folsom, CA · On-site

$120K - $140K/yr

We are seeking a Project Engineer- Water/Wastewater to join our team in the Folsom, CA office. In this role you will lead and support a variety of Civil and Water Wastewater resource planning and ...

HDR

Senior Water/Wastewater Project Manager

Irvine, CA · On-site

More specifically the Senior Water/Wastewater Project Manager will be expected to independently lead and supervise teams of engineers and CAD professionals to create detailed master plans, designs ...

HDR

Senior Water/Wastewater Project Manager

Irvine, CA · On-site

More specifically the Senior Water/Wastewater Project Manager will be expected to independently lead and supervise teams of engineers and CAD professionals to create detailed master plans, designs ...

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All JobsWastewater Project Engineer JobsWastewater Project Engineer Jobs in California

Wastewater Project Engineer information

See California salary details

$59.7K

$98.7K

$132.7K

How much do wastewater project engineer jobs pay per year?

As of Aug 30, 2026, the average yearly pay for wastewater project engineer in California is $98,714.00, according to ZipRecruiter salary data. Most workers in this role earn between $82,900.00 and $115,000.00 per year, depending on experience, location, and employer.

What does a wastewater project engineer do?

A Wastewater Project Engineer is responsible for designing, planning, and overseeing the construction and maintenance of systems that treat and manage wastewater. They work on projects such as sewage treatment plants, stormwater management systems, and infrastructure upgrades. Their role often involves collaborating with environmental scientists, government agencies, and construction teams to ensure projects meet regulatory standards, are cost-effective, and protect public health and the environment.

What are the key skills and qualifications needed to thrive as a wastewater project engineer?

To thrive as a Wastewater Project Engineer, you need a strong background in civil or environmental engineering, project management experience, and typically a Professional Engineer (PE) license. Familiarity with AutoCAD, hydraulic modeling software, and regulatory compliance standards is essential. Strong problem-solving abilities, communication skills, and teamwork make someone stand out in this role. These skills ensure successful project delivery, regulatory adherence, and effective collaboration with stakeholders in complex wastewater infrastructure projects.

What are the common challenges faced by wastewater project engineers during the design and implementation phases of a project?

Wastewater Project Engineers often encounter challenges such as coordinating with multiple stakeholders, managing project timelines, and ensuring compliance with regulatory standards. Balancing cost-effectiveness with the need for sustainable and resilient infrastructure can also be demanding. Additionally, unforeseen site conditions or changes in project scope may require quick problem-solving and adaptability. Effective communication and strong organizational skills are essential for overcoming these challenges and delivering successful projects.

What is the difference between Wastewater Project Engineer vs Civil Engineer?

AspectWastewater Project EngineerCivil Engineer
CredentialsBachelor's in Environmental or Civil Engineering, PE license often preferredBachelor's in Civil Engineering, PE license common
Work EnvironmentDesign, oversee wastewater treatment projects, field inspectionsDesign and oversee various infrastructure projects, including roads, bridges, water systems
Industry UsagePrimarily in water/wastewater treatment facilities and environmental firmsBroad industry, including construction, transportation, and water resources

Wastewater Project Engineers focus specifically on wastewater treatment projects, requiring specialized knowledge in water systems. Civil Engineers have a broader scope, working on various infrastructure projects. Both roles require similar credentials and often work within the same industry, but their project focus differs significantly.

Are wastewater project engineers in demand?

Wastewater project engineers are in demand due to ongoing infrastructure upgrades and environmental regulations requiring sustainable water management solutions. Employment opportunities are expected to grow as municipalities and private firms seek professionals skilled in design, construction, and project management of wastewater systems, often requiring knowledge of industry standards and certifications such as PE licensure.

What are popular job titles related to Wastewater Project Engineer jobs in California?

For Wastewater Project Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Wastewater Project Engineer jobs in California look for?

The top searched job categories for Wastewater Project Engineer jobs in California are:

What are popular job titles related to Wastewater Project Engineer jobs in CA?

For Wastewater Project Engineer jobs in CA, the most frequently searched job titles are:

Wastewater Project Engineer jobs near you
Infographic showing various Wastewater Project Engineer job openings in California as of August 2026, with employment types broken down into 82% Full Time, 13% Part Time, and 5% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $98,714 per year, or $47.5 per hour.

Wastewater Project Engineer (Mid-Level)

Hazen and Sawyer

San Francisco, CA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 13 days ago

Job description

Hazen and Sawyer is seeking a Wastewater Project Engineer for our Sacramento, California office. As part of our design and process teams, you will be involved with a wide range of wastewater infrastructure projects. This will encompass all phases of design, including conceptual/feasibility evaluations, project management, preparation of design reports, permitting, development of construction drawings and specifications, and support of construction services.

Why Hazen and Sawyer:

  • Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are an employee-owned company with a singular focus on "all things water."
  • Our work includes planning, design, and oversight of construction of environmental infrastructure – for water, wastewater, and stormwater management.
  • We foster a work environment low on bureaucracy and high in creativity.
  • We recruit talented professionals, provide them with challenging, interesting, and creative assignments, and furnish them with the tools they need to succeed.
  • We currently have over 2,400 employees in 90+ offices throughout the United States, Latin America, Canada, and the UK.
  • A flexible hybrid work schedule supports today's busy professionals.
  • The Sacramento Hazen office is a welcoming, growing team made up of both young professionals and experienced staff who enjoy staying connected through year-round activities outside the office.
  • With a central location, the office offers easy access to nearby communities and flexible living options.
  • Employees also benefit from close proximity to the San Francisco Bay Area and destinations including Lake Tahoe and Napa Valley.

Key Responsibilities:

  • Support the development of technical treatment strategies, selection of treatment processes, developing process design criteria, and delivering projects
  • Support coordination and collaboration with clients
  • Coordination with internal technical specialists in all practice areas and discipline design professionals for project delivery.
  • Support planning, design, permitting, and construction of wastewater-related projects. 
  • Manage project tasks, scope, and schedules for smaller projects or specific components of larger projects to meet client requirements
  • Prepare comprehensive construction documents including drawings and specifications for wastewater treatment projects
  • Perform detailed design calculations for typical liquid and solids treatment processes
  • Lead technical writing for technical memorandum, master plans, basis of design reports and preliminary design reports
  • Experience working with interdisciplinary teams to effectively meet the client’s needs
  • Candidate shall also be able to support preparation of proposals and presentations
  • Provide engineering services during construction, including responding to RFIs (Request for Information), reviewing submittals, and conducting site visits to observe progress
  • Fieldwork and site visits from planning through construction may be required with occasional travel
  • Mentor junior staff and perform quality control reviews of their technical work


Required Qualifications:

  • Bachelor's degree in civil/environmental engineering
  • PE license (California preferred)
  • 5-12 years of experience in the field of wastewater-related infrastructure, including project engineering/management (planning, design, and construction)
  • Experience in successfully delivering and supporting projects spanning multiple years in collaborative, multi-disciplinary teams 
  • Proficient in all MS Office based computer software 
  • Excellent communication and interpersonal skills, and capable of interacting effectively with staff, clients, and regulatory agencies
  • Proven proficiency in technical writing and documentation 
  • Self-starter with attention to detail 
  • Strong organizational skills 
  • Must be capable of presenting complex issues to nontechnical people 

Preferred Qualifications:

  • Advanced degree (Master’s or Doctorate) in Civil/Environmental Engineering
  • Hands-on experience with design modeling software (e.g., Revit or AutoCAD)

What We Offer:

  • Comprehensive health benefits (medical, dental, vision, and prescription plans).
  • Pre-tax flexible spending plans for medical, dependent care, and transportation.
  • Short and long-term disability, and employer paid life insurance.
  • Paid holidays, floating holidays, and paid time off (PTO).
  • Employer-contributed 401(k) plan and additional financial planning support.
  • Professional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization memberships. 
  • Starting pay range for this position depends on skills, experience, education and geographical location.


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About HAZEN AND SAWYER

Sourced by ZipRecruiter

Hazen and Sawyer, headquartered in New York, NY, US, operates within the field of environmental science and engineering. Founded in 1951, the firm specializes in designing drinking water, wastewater, and stormwater facilities, comprehensive solid waste services, and other environmental infrastructure projects. Striving towards nurturing clean, safe water supply, the company upholds it as its primary mission. Their dedication reflects in their numerous honors received at the national and regional levels, including awards from the American Society of Civil Engineers, American Council of Engineering Companies, and Water Environment Federation.

Industry

Environmental consulting services

Company size

501 - 1,000 Employees

Headquarters location

New York, NY, US

Year founded

1951

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