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Freelance Water Design Engineer Jobs (NOW HIRING)

Dar Group

Engineer, Water

Washington, DC · On-site

$81K - $121K/yr

Perform engineering design and consulting for water, wastewater, and stormwater infrastructure projects. * Prepare hydraulic and hydrologic calculations to support system design, including pipe ...

GFT.

Water Engineer, Designer

Audubon, PA · Hybrid

$70K - $100K/yr

The Water Design Engineer will assist in the planning, design, and construction of water, wastewater, and municipal infrastructure projects. Responsibilities include conducting site visits, preparing ...

TSMC

Water Section Design Engineer

Phoenix, AZ · On-site

As a Water Section Design Engineer, you will demonstrate a strong sense of reliability and enthusiasm and will possess an attitude that embodies our core values - Integrity, Commitment, Innovation ...

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Freelance Water Design Engineer information

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$14

$47

$132

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

As of Aug 29, 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.

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Freelance Water Design Engineer jobs near you
Infographic showing various Freelance Water Design Engineer job openings in the United States as of August 2026, with employment types broken down into 90% Full Time, 7% Part Time, and 3% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $99,230 per year, or $47.7 per hour.

Engineer, Water

Dar Group

Washington, DC • On-site

$81K - $121K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 16 days ago

Job description

TYLin is a globally recognized, full-service infrastructure consulting firm committed to providing innovative, cost-effective, constructible designs for the global infrastructure market. With over 3,000 employees throughout the Americas, Asia, and Europe, the firm provides support on projects of varying size and complexity. Together, we enhance conventional designs with smarter, more resilient systems. We provide people with better mobility. We steward precious resources by finding more sustainable solutions.
Job Summary
We are seeking a motivated and detail-oriented Water Design Engineer in the Washington D.C. area to join our growing team. This role is ideal for an engineer with a strong foundation in design who is eager to contribute to meaningful infrastructure projects. The successful candidate will play a key role in the planning, design, and delivery of municipal water, wastewater, and stormwater systems, with a focus on producing high-quality, practical engineering solutions.
Responsibilities & Qualifications
Responsibilities:
  • Perform engineering design and consulting for water, wastewater, and stormwater infrastructure projects.
  • Prepare hydraulic and hydrologic calculations to support system design, including pipe rehabilitation and pump systems.
  • Develop detailed technical drawings and specifications, including manholes, grading plans, and erosion and sediment control measures.
  • Support the planning, design, and rehabilitation of conveyance systems, odor control facilities, and combined sewer systems.
  • Conduct infrastructure condition assessments and assist with rehabilitation strategies.
  • Assist with permitting, cost estimating, and preparation of construction contract documents.
  • Coordinate with subconsultants and collaborate with multidisciplinary project teams.
  • Participate in projects as a team member and take the lead on specific technical design tasks as needed.
  • Present project updates and deliverables to clients.

Qualifications:
  • Bachelor's degree in Civil Engineering required.
  • 3-6 years of experience in water, wastewater, and/or stormwater engineering.
  • Strong experience in detailed design, including pipelines, manholes, pump systems, and grading plans.
  • Understanding of soil conditions and erosion and sediment control practices.
  • EIT required; PE license or ability to obtain within one year strongly preferred.
  • Demonstrated ability to take a design from concept through final documentation.
  • Strong communication, collaboration, and problem-solving skills with a client-focused mindset.

Additional Information
T.Y. Lin International is committed to pay equity. As part of that commitment, we have provided the base compensation range of $81,200-$121,800 annually for this position and local market. We recognize that each candidate brings a unique set of skills, experience, education and competencies to the table that will be reflected in our offer. TYLin is proud to offer exciting career development opportunities.
#LI-DNP
TYLin offers a comprehensive total rewards package. Our benefits may include extensive medical, disability and life insurance coverage, continuing education benefits, paid time off, employee assistance program and a retirement savings plan with company matching contributions.
We encourage all candidates to explore our total rewards offering.
Collaboration, mission-driven focus, discipline, and leadership skills developed through military service benefit us all. Whether you are a Veteran, Guardsman or Reservist, a Military Spouse or you are planning to transition to civilian life in the near future, we welcome and value your application.
TYLin is an equal opportunity employer, and we prohibit discrimination and harassment of any type as protected by federal, provincial, state or local laws. We celebrate diversity and are committed to creating an inclusive environment for all employees. The company and its employees are required to comply with all local health authority, legal or lawful client requirements.

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