Water/Wastewater Engineer
Eastern Research Group
United States, Virginia, Fairfax Mar 02, 2026 ERG is a research and consulting firm that provides a wide range of support to federal, state, and commercial clients. ERG offers multidisciplinary teams with nationally recognized skills in engineering, science, economics, public health, informational technology, and communications. We hire people with the best minds and then provide them with a vibrant and flexible environment in which to develop their careers. The qualified individual must be highly motivated with the skills to prioritize, perform, and communicate effectively in a fast-paced environment. Job Description Independently assess community water and wastewater infrastructure needs and identify practical, cost‑effective solutions Develop clear, well‑organized planning documents and technical reports, including Preliminary Engineering Reports (PERs) Prepare preliminary and detailed project designs that municipalities can use to secure infrastructure funding Lead meetings with community stakeholders to gather information, present recommendations, and foster project support and engagement Depending on your experience and expertise, contribute to additional project areas, such as evaluating and promoting innovative water and wastewater treatment technologies, analyzing the design, cost, and environmental impacts of infrastructure projects, or supporting other related technical initiatives Qualifications and Skills Bachelor’s degree in Civil or Environmental Engineering Professional Engineer (PE) license in at least one U.S. state, or the ability and commitment to obtain a PE license within 12 months of hire 5+ years of relevant experience in municipal water or wastewater system planning and design, with exposure to a variety of treatment systems; experience with funding, financing, and governance frameworks for Capital Improvement Programs is a plus Willingness and ability to travel as needed to support community projects Strong written and verbal communication skills, with the ability to clearly convey technical information to diverse stakeholders Benefits ERG offers competitive salaries and excellent benefits, including health and dental insurance, life insurance, long-term disability, educational benefits, FSAs, a generous 401k plan, profit sharing, an EAP, 11-20 paid vacation days per year, 10 paid holidays per year, and 56 hours or more of sick leave (based on the state you work in) per year (pro-rated for part‑time) and more. ERG is an equal opportunity employer and complies with all applicable EEOC regulations. All qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual preference, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability or a disabled veteran, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access ERG’s online application process as a result of your disability. To request accommodation, please contact Human Resources via email at View email address on click.appcast.io or call View phone number on click.appcast.io. ERG fosters a friendly, flexible work environment. ERGers are dedicated to serving clients who are committed to making the world a better place. We promote and recognize principles of fairness and respect in the work we do, the partnerships we foster, and the culture we value both within and outside of our organization. #J-18808-Ljbffr
$80k - $180k
GFT is seeking a Wastewater Treatment Process Engineer to join our Water team! This role follows a hybrid work model, requiring regular attendance at one of our many offices. What you’ll be challenged to do: In this role you will lead and support design of wastewater treatment...WaterFull timeRemote work- Herndon, VirginiaEngineering - Water/Wastewater Engineering /Full time /HybridA. Morton Thomas and Associates, Inc. (AMT) is hiring a Civil Engineer - Water/Wastewater Engineering to collaborate in the planning, design, and implementation of infrastructure solutions for...WaterPermanent employmentFull timeTemporary workCasual workVisa sponsorship
- ...join our team - help us to design the infrastructure and buildings that improve the world! We are seeking an experienced Water/wastewater engineer with progressive experience in water and wastewater system planning, hydraulic modeling, design and construction management...WaterFull timeContract workTemporary workH1bFlexible hours
- ...Whitman, Requardt & Associates, LLP in Fairfax, VA is seeking an entry-level Water/Wastewater Engineer to join our team. Responsibilities include water and sewer modeling, facility evaluation, design, and construction administration. We value ABET-accredited degrees, 0...WaterFull timeInternship
$72k - $97k
...understand today’s needs and develop plans to improve the movement of people and goods! We are currently seeking an entry-level Water/Wastewater Engineer in our Fairfax, VA office. Responsibilities will include water and sewer modeling, water and wastewater facility...WaterFull timeTemporary workInternshipH1bWork at officeFlexible hours$90k - $200k
GFT is seeking a Wastewater Treatment Design Engineer to join our Water team! This role follows a hybrid work model, requiring attendance at one of our many offices.Joining the water resources team at GFT means contributing to innovative solutions for sustainable water...WaterFull timeRemote work- ...further to learn how you could help make great things possible not only in your community, but around the world. In the role of Water Resources Engineer, we'll count on you to: Provide project engineering and task management, conduct difficult to complex hydraulic and...WaterLocal area
$116k - $149k
Job DescriptionDewberry has an immediate opening for a Project Engineer experienced in water and wastewater engineering, planning, modeling, and construction for our growing Mid-Atlantic Water practice in our Fairfax, VA office. This is an excellent career opportunity...WaterWork at officeLocal areaImmediate start$82k - $127k
ATCS is seeking an energetic, highly motivated, detail-oriented, self-starter to join our team as a Water Resources Engineer. This is a hybrid role with three days per week required onsite in our Herndon, VA office.This is an exciting opportunity to support the strategic...WaterFull timeWork at officeImmediate startFlexible hours3 days per week- ...A staffing agency is seeking a senior-level Water Resources Engineer in Northern Virginia. The role involves leading technical modeling on complex projects, focusing on advanced H&H modeling and floodplain analysis. Candidates should have a Bachelor's degree in Civil...Water
$62k - $141k
Civil & Industrial Engineer ExpertThe Opportunity: With all the information available today, it takes a skilled intelligence professional... ...science, seismic or earthquake, construction, hydrology, and water resource engineering. Using your understanding of various collection...WaterFull timeContract workPart timeWork at officeLocal areaRemote work- ...A leading engineering firm in Virginia is looking for an experienced engineer to manage complex hydrologic and hydraulic modeling projects. The ideal candidate has over 10 years of experience in water resources engineering, strong leadership skills, and proficiency in...Water
- ...community, but around the world. We believe water is more than a resource, it's a shared... ...safe drinking water and treating wastewater responsibly to developing sustainable water... ...to our support to the US Army Corps of Engineers and other clients under the investigations...WaterLocal area
- ...CDM Smith is seeking an entry-level Environmental Engineer to join their Water Services Group in Fairfax, Virginia. This role is perfect for recent graduates looking to apply their skills in sustainable water projects, with responsibilities spanning from design support...Water
- ...Liberty Personnel Services, Inc. is seeking a skilled Water Treatment Engineer in Fairfax, Virginia, with 5-10 years of experience in the planning, design, and construction of municipal and industrial water treatment projects. Candidates should have a Bachelor's degree...Water
- ...Trinnex Inc. is seeking an entry-level Environmental Engineer in Fairfax, Virginia. This opportunity allows recent graduates to apply their skills to innovative water and wastewater projects within a supportive team environment. Responsibilities include designing treatment...Water
- ...We are seeking a senior-level Water Resources Engineer in Northern Virginia to serve as a lead technical modeler on complex water resources projects. This role focuses on advanced H&H modeling, floodplain and dam analysis, permitting, and mentoring junior staff. It's...Water
$70k - $85k
...technical and project support across ERG’s water projects Assist with research, data... ...related to water resources, water quality, wastewater management, and water and wastewater... ...multidisciplinary teams of scientists, engineers, and project managers to support client...WaterHourly payPart timeInternship- ...Smith has an immediate need of a junior engineer to support our mid and senior level engineers on a variety of projects in our Water Services Group. This position can be based... ...creates basic to moderate complexity water and wastewater treatment facilities, water and sewer...WaterLocal areaImmediate start
$95k - $115k
This OpportunityWSP is seeking a SiteCivil Water Resources Engineer to join our highly collaborative team in Herndon, Virginia and learn to create dynamic solutions on a wide range of complex projects. This is a hybrid role. Our current opening will focus on the water...WaterWork experience placementInternshipWork at officeLocal areaFlexible hours$100.19k - $175.37k
...Job Description We are seeking a skilled and dedicated Environmental Engineer with a focus on water and wastewater systems to join our dynamic team. In this role, you will contribute to the design, implementation, and optimization of water and wastewater treatment solutions...WaterH1bLocal area$136.6k - $184.8k
...system availability? We are seeking an experienced electrical engineer with extensive experience in power infrastructure design, including... ...manage and develop models for determining the total energy and water use within our fleet of data centers and work with partners on...WaterTemporary workFor contractorsFlexible hours$116.8k - $160k
...team of software, hardware, and network engineers, supply chain specialists, security experts... ...role you will influence all aspects of water based cooling systems infrastructure. As... ...management, or industrial water and wastewater infrastructure projects- • Experience in...WaterWork at officeFlexible hours$140k - $216.9k
Communities everywhere share the need for clean water. And as they work to meet that need,... ...technical expertise to grow Stantec’s wastewater treatment practice, develop top talent,... ...in Chemical, Civil or Environmental Engineering or related field.Master’s degree, preferred...WaterFull timeTemporary workPart timeCasual workLocal areaFlexible hours- Herndon, VirginiaEngineering - Water Resources Engineering /Full time /HybridAMT is growing and is seeking a highly motivated Project Manager / Senior Water Resources Engineer with 7+ years of relevant experience, to join our growing team of design professionals in our...WaterFull timeTemporary workWork at officeLocal areaRemote workRelocation packageFlexible hours
$118k - $151k
...DescriptionDewberry is currently seeking a Senior Transportation/Roadway Project Engineer in our growing Fairfax or Richmond, VA offices. The successful... ..., roundabout design, bridge projects, drainage systems, storm water management, utility relocations and preparation of contract...WaterContract workWork at officeLocal areaRelocationFlexible hours$105k - $132.4k
...Materials Team is growing, and we have opportunity for an Senior Civil Engineer to support our Herndon, VA location. Provides high level... ...management, grading/earthwork minimization, roads, buildings, water supply systems, and sewage treatment. Substantiates reports and...WaterFor subcontractorWork at officeLocal area- ...Description Job Description Hazen & Sawyer is seeking an Electrical Project Engineer for our Fairfax, VA office. Candidate will provide electrical engineering and design for water and wastewater facility projects, serving as lead electrical engineer when required....WaterTemporary workFor contractorsWork at officeLocal areaFlexible hours
$94k - $120k
...DescriptionDewberry is currently seeking a Site/Civil Project Engineer to serve major public and institutional clients in our Fairfax,... ...land development activities including: design of grading, storm water management, soil erosion & sediment control, roadways, storm drainage...WaterWork at officeLocal area$80k - $180k
GFT is seeking a Water Treatment Process Engineer to join our Water team! This role follows a hybrid work model, requiring regular attendance at... ...infrastructure. Our team excels in, advanced water and wastewater treatment, stormwater management, and conveyance, collection...WaterFull timeRemote work
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