Water Resources Engineer

Ann Arbor, MIFull-timePosted Jul 1, 2026
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Overview

Do you want to build an impactful career to change the world for the better? 

Geosyntec has an exciting opportunity for a Water Resources Engineer in our Ann Arbor, Michigan office. This position is well suited for an engineer with strong hydrology and hydraulics modeling experience, municipal stormwater and sanitary infrastructure design capabilities, and a demonstrated background supporting large-scale sewer, flood protection, and stormwater management programs. The role will support complex projects involving urban stormwater infrastructure design and analysis, sanitary and storm sewer system modeling, flood mitigation planning, sustainable green infrastructure and Low Impact Development (LID) strategies, hydrologic/hydraulic analysis, civil engineering design, watershed and stormwater runoff modeling, NPDES permitting support, and Clean Water Act regulatory support.

 

Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

 

We invest in our people.  Each employee is unique, and your career at Geosyntec will be too.  We offer competitive pay and benefits, and well-being programs to support you and your family.

 

To Learn More Visit: http://www.geosyntec.com/careers/.

Essential Duties and Responsibilities

  • Perform and support detailed hydrologic and hydraulic studies for municipal, watershed, stormwater, sanitary sewer, and flood protection projects.
  • Develop, calibrate, and apply advanced modeling tools such as PCSWMM/EPA SWMM, InfoWorks ICM, HEC-RAS, HEC-HMS, and related platforms to evaluate open channel, closed pipe, dual drainage, sanitary, and stormwater systems.
  • Support planning, analysis, and design for sewer and flood protection master planning, drainage improvement programs, and large-scale capital infrastructure projects.
  • Prepare stormwater management designs, Low Impact Development (LID) strategies, detention/retention analyses, roadway drainage designs, and flood mitigation alternatives.
  • Conduct floodplain analyses, culvert and bridge hydraulic assessments, and scenario modeling to support municipal resilience and flood protection objectives.
  • Perform sanitary sewer inflow and infiltration (I/I) evaluations, system capacity assessments, and infrastructure needs analyses using hydraulic modeling software.
  • Prepare technical memoranda, engineering calculations, design reports, figures, and supporting documentation for internal and external clients.
  • Review functional servicing studies, stormwater technical memoranda, drainage reports, and related municipal infrastructure submittals for regulatory and design compliance.
  • Support field investigations, site visits, data collection, and construction support services, as needed.
  • Coordinate engineering design deliverables with CAD/GIS staff using tools such as AutoCAD, Civil 3D, and ArcGIS.
  • Develop strong collaborative relationships with client representatives, regulatory personnel, and internal Geosyntec colleagues.
  • Coordinate work efforts with multidisciplinary project teams while managing multiple concurrent assignments in a consulting environment.
  • Support lead generation, proposal development, staff development, mentoring, and other contributions consistent with Geosyntec’s sell-manage-do business model.
  • Help broaden Geosyntec’s technical reputation through conference participation, publications, and professional visibility.
  • Drive personal, company, and rental vehicles to client or company project or office sites, and other business locations, as needed.

Education and Licensure

  • Bachelor’s degree in civil engineering, environmental engineering, water resources engineering, or a closely related discipline with emphasis on hydrology, hydraulics, stormwater, or municipal infrastructure. (required)
  • Advanced degree in civil engineering, water resources engineering, environmental engineering, or a related discipline. (preferred)
  • Professional registration (i.e., P.E.) or the ability to obtain within 12 months of employment. (preferred)

Skills, Experience and Qualifications

  • At least 5 years of research or related water resource experience, or equivalent combination of education and experience. (required)
  • Demonstrated experience supporting municipal sewer, stormwater, flood protection, or capital improvement projects. (preferred)
  • Strong working knowledge of hydrology, hydraulics, sewer design, stormwater management, flood analysis, roadway drainage, and Low Impact Development (LID) strategies. (required)
  • Experience with modeling and design software tools such as PCSWMM/EPA SWMM, InfoWorks ICM, HEC-RAS, HEC-HMS, AutoCAD, Civil 3D, and ArcGIS. (preferred)
  • Experience preparing stormwater management calculations, sanitary sewer inflow and infiltration analyses, floodplain models, drainage assessments, and technical reports or memoranda. (preferred)
  • Working knowledge of municipal, state/provincial, and federal regulations applicable to stormwater, drainage, flood protection, environmental assessment, municipal servicing, NPDES permitting, and Clean Water Act compliance. (preferred)
  • Ability to succeed in a fast-paced consulting environment by managing multiple assignments, meeting deadlines, collaborating with multidisciplinary teams, and supporting internal and external clients. (required)
  • Excellent written, verbal, organizational, and interpersonal communication skills. (required)
  • Regular field work and overnight travel may be required. (required)
  • Health & Safety training, medical monitoring, and client-driven drug and background testing may be required.
  • Valid U.S. driver’s license and a satisfactory driving record for business travel. (required) 

 

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