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Freelance Water Design Engineer Jobs (NOW HIRING)

GFT.

Water Treatment Facility Design Engineer

Marlton, NJ · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team! This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

GFT.

Water Treatment Facility Design Engineer

Dallas, TX · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team!This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

GFT.

Water Treatment Facility Design Engineer

Newark, NJ · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team!This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

GFT.

Water Treatment Facility Design Engineer

Chicago, IL · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team!This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

GFT.

Water Treatment Facility Design Engineer

Houston, TX · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team!This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

GFT.

Water Treatment Facility Design Engineer

Fairfax, VA · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team!This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

GFT.

Water Treatment Facility Design Engineer

Dallas, TX · On-site

$90K - $200K/yr

GFT is seeking a Water Treatment Design Engineer to join our Water team! This role follows a hybrid work model, requiring regular attendance at one of our many offices. Joining the water resources ...

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How much do freelance water design engineer jobs pay per hour?

As of May 28, 2026, the average hourly pay for freelance water design engineer in the United States is $47.71, according to ZipRecruiter salary data. Most workers in this role earn between $24.28 and $61.78 per hour, depending on experience, location, and employer.

What is the difference between Freelance Water Design Engineer vs Civil Water Engineer?

AspectFreelance Water Design EngineerCivil Water Engineer
CredentialsRelevant engineering degrees, certifications in water systemsEngineering degrees, professional licensure (PE), certifications in water resources
Work EnvironmentIndependent, project-based, remote or on-siteTypically employed by firms, government agencies, or construction companies
Employer & Industry UsageFreelance basis for consulting firms, engineering consultancies, or clientsPublic and private sector infrastructure projects, construction, and consulting

Freelance Water Design Engineers often work independently on water system projects, offering specialized consulting services. Civil Water Engineers are usually employed by organizations involved in large-scale infrastructure projects. Both roles require similar credentials but differ mainly in employment setting and project scope.

More about Freelance Water Design Engineer jobs
What cities are hiring for Freelance Water Design Engineer jobs? Cities with the most Freelance Water Design Engineer job openings:
What are the most commonly searched types of Water Design Engineer jobs? The most popular types of Water Design Engineer jobs are:
What states have the most Freelance Water Design Engineer jobs? States with the most job openings for Freelance Water Design Engineer jobs include:
What job categories do people searching Freelance Water Design Engineer jobs look for? The top searched job categories for Freelance Water Design Engineer jobs are:
Freelance Water Design Engineer jobs near you
Infographic showing various Freelance Water Design Engineer job openings in the United States as of May 2026, with employment types broken down into 91% Full Time, 7% Part Time, 1% Contract, and 1% Nights. Highlights an 80% Physical, 10% Hybrid, and 10% Remote job distribution, with an average salary of $99,230 per year, or $47.7 per hour.

Water Treatment Facility Design Engineer

GFT.

Marlton, NJ • On-site

$90K - $200K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 27 days ago

Job description

GFT is seeking a Water Treatment Design Engineer to join our Water team! This role follows a hybrid work model, requiring regular attendance at one of our many offices.
Joining the water resources team at GFT means contributing to innovative solutions for sustainable water management and infrastructure. Our team excels in dams and levees, advanced water and wastewater treatment, stormwater management, and conveyance, collection, and transmission. With a focus on integrating technology, sustainability, and compliance, we consider each water resources and environmental remediation project a chance to innovate and evolve to protect public health and enhance quality of life. Explore some of our signature water resources and environmental projects here.
What you'll be challenged to do:
In this role you will lead and support design, optimize, and manage systems that treat and transport drinking water to ensure safety, efficiency, and environmental compliance.
In this capacity, the successful candidate will be responsible for the following:
  • System Design:Designing water treatment plants and pumping stations, including detailed CAD drawings and equipment selection. Design new treatment systems or upgrade existing systems, including pre-treatment, various filtration processes including granular media and membranes, chemical storage and feed, UV and other advanced treatment technologies, and pumping equipment
  • Process Optimization:Analyzing and enhancing treatment techniques (e.g., pH adjustment, chemical dosing, aeration) to improve efficiency and reduce costs.
  • System Hydraulics: Performing hydraulic analysis of existing and new water treatment plants, pump stations, and piping systems, making pump selections, and evaluating performance of existing pumps.
  • Testing and Monitoring:Analyze lab data, operator reports, and chemical usage to resolve operational issues and improve efficiency.
  • Compliance and Safety:Ensure that treated water meets municipal or industrial regulatory standards, protecting public health and the environment.
  • Project Management:Conducting feasibility studies, upgrading existing infrastructure, and managing projects from design to completion. Develop cost projections, feasibility studies, and supervise construction or commissioning of new technology.
  • Data Analysis:Monitoring operator reports and lab results to refine treatment techniques.
  • Technical: Function as a technical specialist in the areas of conventional and advanced water treatment

What you will bring to our firm:
  • BS in Civil, Environmental, Chemical Engineering (MS is preferred)
  • Professional Engineer Licensed required (PE) or the ability to obtain in 6-12 months
  • 8 + years of experience preferred in water discipline, particularly as a water engineer designing (study, plans and specifications) water infrastructure (i.e. treatment and pumping station projects)
  • Expert knowledge in standard engineering techniques and procedures.
  • Demonstrated experience and knowledge in primary treatment, filtration processes, chemical storage and feed, advanced water treatment, disinfection, hydraulics, and solids processing and handling preferred.
  • Successful track record leading water design and plant facilities projects
  • Demonstrated ability in both conventional filtration as well as membrane filtration is preferred. In addition, experience in hydraulics, chemical feed systems, alternate disinfection would be preferred.
  • Progressive experience in the evaluation, design, permitting and construction administration of water treatment facilities, pumping stations, and water storage and distribution facilities

Compensation:
The salary range for this role is $90,000 - $200,000. Salary is dependent upon experience and geographic location.
Featured Benefits:
• Hybrid (in-person and remote) work environment.
• Comprehensive benefits package including wellness programs, parental leave, and pet insurance, in addition to medical, dental, vision, disability, and life insurance.
• Tax-deferred 401(k) savings plan.
• Competitive paid-time-off (PTO) accrual.
• Tuition reimbursement for continued education.
• Commitment to professional development, access to internal and external training programs, and support of active participation in professional organizations
• Incentive compensation for eligible positions.
At GFT, a privately held AEC firm, we innovate where transportation, water, power, and buildings converge. We call this the Infrastructure of Life. We measure our success by the strength of our relationships - that's why we're the employer of choice for 5,000+ of the industry's brightest engineers, planners, architects, inspectors, designers, and more.
Our clients choose us for our expertise and prefer us for our nimble approach, creativity, and personal touch. Backed by over a century's experience, together we're building a lasting legacy for future generations: stronger communities, a healthier planet, and better lives.
GFT: Ingenuity That Shapes Lives™ is an Equal Opportunity Employer. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veterans' status or other characteristics protected by law.
Unsolicited resumes from third party agencies will be considered the property GFT.
GFT does require the successful completion of a criminal background check for all advertised positions.
Location: New York or New Jersey
Core Business Hours: 8:00 AM - 5:00 PM
Employment Status: Full-Time
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