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Senior Wastewater Engineer Jobs (NOW HIRING)

Hazen and Sawyer

Senior Wastewater Engineer

Boston, MA · On-site

$113K - $155K/yr

Hazen and Sawyer is seeking a Senior Wastewater Engineer for our Boston, MA office. As part of our Wastewater team qualified candidates will be involved with a wide range of wastewater infrastructure ...

Hazen and Sawyer

Senior Wastewater Engineer

Manchester, NH · On-site

$104K - $142K/yr

Hazen and Sawyer is seeking a Senior Wastewater Engineer for our Manchester, NH office. As part of our Wastewater team qualified candidates will be involved with a wide range of wastewater ...

HDR

Senior Wastewater Engineer

Kansas City, MO

$102K - $140K/yr

In the role of Senior Wastewater Engineer, we'll count on you to: * Independently create detailed designs, plans, specifications and estimates for pipelines, pump stations, treatment plants, tanks ...

Sehinc

Senior Wastewater Engineer

Chippewa Falls, WI · On-site

$110K - $125K/yr

You belong at SEH SEH is currenting searching for a Senior Wastewater Engineer to join our talented Water/Wastewater team! Why our employee-owners love SEH: * "I was on vacation last week and had ...

Pennoni

Senior Wastewater Engineer

Winter Haven, FL · On-site

$91K - $125K/yr

We are looking for a Senior Engineer to help lead our water & wastewater projects on a full-time, direct basis; this person will be expected to focus on our wastewater treatment & conveyance projects.

Hazen and Sawyer

Senior Wastewater Engineer

Wethersfield, CT · On-site

$104K - $143K/yr

Hazen and Sawyer is seeking a Senior Wastewater Engineer for our Wethersfield, CT office. As part of our Wastewater team qualified candidates will be involved with a wide range of wastewater ...

Sehinc

Senior Wastewater Engineer

Rice Lake, WI · On-site

$110K - $125K/yr

You belong at SEH SEH is currenting searching for a Senior Wastewater Engineer to join our talented Water/Wastewater team! Why our employee-owners love SEH: * "I was on vacation last week and had ...

Sehinc

Senior Wastewater Engineer

New Richmond, WI

$110K - $125K/yr

You belong at SEH SEH is currenting searching for a Senior Wastewater Engineer to join our talented Water/Wastewater team! Why our employee-owners love SEH: * "I was on vacation last week and had ...

Sehinc

Senior Wastewater Engineer

Saint Paul, MN · On-site

$110K - $125K/yr

You belong at SEH SEH is currenting searching for a Senior Wastewater Engineer to join our talented Water/Wastewater team! Why our employee-owners love SEH: * "I was on vacation last week and had ...

Pennoni

Senior Wastewater Engineer

Philadelphia, PA · On-site

$99K - $137K/yr

We are looking for a Senior Engineer to help lead our water & wastewater projects on a full-time, direct basis; this person will be expected to focus on our wastewater treatment & conveyance projects.

Pennoni

Senior Wastewater Engineer

Philadelphia, PA · On-site

$99K - $137K/yr

We are looking for a Senior Engineer to help lead our water & wastewater projects on a full-time, direct basis; this person will be expected to focus on our wastewater treatment & conveyance projects.

HDR

Senior Wastewater Engineer

Kansas City, MO · On-site

$102K - $140K/yr

In the role of Senior Wastewater Engineer, we'll count on you to: * Independently create detailed designs, plans, specifications and estimates for pipelines, pump stations, treatment plants, tanks ...

HDR

Senior Wastewater Engineer

Denver, CO · On-site

$107K - $147K/yr

In the role of Senior Engineer Sanitary, we'll count on you to: * Independently create detailed ... Serve as a project manager on water/wastewater projects as needed * Perform other duties as needed ...

Pennoni

Senior Wastewater Engineer

Winter Haven, FL · On-site

$91K - $125K/yr

We are looking for a Senior Engineer to help lead our water & wastewater projects on a full-time, direct basis; this person will be expected to focus on our wastewater treatment & conveyance projects.

Pennoni

Senior Wastewater Engineer

Winter Haven, FL · On-site

$91K - $125K/yr

We are looking for a Senior Engineer to help lead our water & wastewater projects on a full-time, direct basis; this person will be expected to focus on our wastewater treatment & conveyance projects.

HDR

Senior Wastewater Engineer

Denver, CO

$107K - $147K/yr

In the role of Senior Engineer Sanitary, we'll count on you to: * Independently create detailed ... Serve as a project manager on water/wastewater projects as needed * Perform other duties as needed ...

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Senior Wastewater Engineer information

See salary details

$59.5K

$126.6K

$183.5K

How much do senior wastewater engineer jobs pay per year?

As of Aug 30, 2026, the average yearly pay for senior wastewater engineer in the United States is $126,557.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,500.00 and $143,500.00 per year, depending on experience, location, and employer.

What does a senior wastewater engineer do?

A Senior Wastewater Engineer is responsible for designing, planning, and overseeing projects related to the treatment and disposal of wastewater. They ensure that systems comply with environmental regulations and work efficiently to protect public health and the environment. Their duties often include project management, supervising junior engineers, conducting site inspections, and collaborating with stakeholders to develop sustainable solutions. Additionally, they may be involved in upgrading existing facilities and implementing innovative treatment technologies.

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

To thrive as a Senior Wastewater Engineer, you need a strong background in civil or environmental engineering, thorough knowledge of wastewater treatment processes, and typically a Professional Engineer (PE) license. Familiarity with design software like AutoCAD, hydraulic modeling tools, and regulatory compliance systems is crucial. Outstanding project management, leadership, and communication skills distinguish top performers in this role. These skills ensure effective design, implementation, and oversight of complex projects that protect public health and the environment.

What are some common challenges a senior wastewater engineer faces when managing large-scale projects?

Senior Wastewater Engineers often encounter challenges such as coordinating multidisciplinary teams, addressing regulatory compliance issues, and balancing project budgets and timelines. Navigating complex permitting processes and ensuring designs meet evolving environmental standards requires strong technical and communication skills. Additionally, managing stakeholder expectations—including clients, government agencies, and the public—can be demanding but is essential for project success.

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

AspectSenior Wastewater EngineerWastewater Project Engineer
Required CredentialsBachelor's degree in Civil or Environmental Engineering; Professional Engineer (PE) license often preferredBachelor's degree in Civil or Environmental Engineering; PE license may be preferred but less common
Work EnvironmentDesign, planning, and oversight of wastewater systems; leadership roles in projectsAssists in project execution, technical support, and coordination on wastewater projects
Employer & Industry UsageConsulting firms, municipal agencies, environmental firmsEngineering firms, construction companies, municipal departments

The main difference between a Senior Wastewater Engineer and a Wastewater Project Engineer lies in experience, responsibilities, and leadership. Senior Wastewater Engineers typically have more experience, hold a PE license, and oversee entire projects or teams. Wastewater Project Engineers focus on supporting project tasks and technical execution. Both roles are essential in wastewater industry projects, but the senior position involves greater oversight and strategic planning.

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Cities with the most Senior Wastewater Engineer job openings:

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Senior Wastewater Engineer jobs near you
Infographic showing various Senior Wastewater Engineer job openings in the United States as of August 2026, with employment types broken down into 94% Full Time, 2% Part Time, and 4% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution, with an average salary of $126,557 per year, or $60.8 per hour.

Sr. Wastewater Engineer

Leesport, PA

Penn Technical Staffing
Recruiting and Staffing Services • 11 - 50 employees
Learn more about Penn Technical Staffingexternal

Full-time

Posted 26 days ago

Job description

A busy civil engineering firm located in Leesport, PA is seeking a Sr. Wastewater Engineer to join their team. Job Responsibilities: Lead multidisciplinary teams in the design and execution of complex civil, environmental, municipal, and infrastructure projects; Serve as technical lead and engineer-of-record on projects; Oversee the preparation and submission of calculations, reports, permitting documents, design plans, and other work products for successful project completion; Interact with clients, the public, design teams, and agencies ;Manage engineering scopes, budgets, schedules, and QA/QC reviews; Perform and/or coordinate work schedules and assign tasks for staff.  Job Requirements: BS in Civil Engineering or similar; Licensed Professional Engineer (PE) in Pennsylvania; Minimum of ten (10) years job-related experience; Knowledge in Wastewater Collection and Treatment, Water Treatment and Distribution, Act 537 Planning, Water Quality Management Permitting, Public Water Supply Permitting.  #IND

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About Penn Technical Staffing

Sourced by ZipRecruiter

Penn Technical Staffing was founded in 2005, with a vision to create a different kind of staffing company-one that would embrace new technology, strive for operational excellence and deliver superior service to our customers. Since we opened, we have seen outstanding growth and developed a recruiting team that is professional, motivated and well trained on the most effective ways to recruit and retain top-notch individuals. We believe that people and the positive relationships that we build with them are the keys to our future success.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Landenberg, PA, US

Year founded

2005

Social media

Twitter

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