Demo

Hydrologist I (MA/NH)

Weston & Sampson Engineers Inc
Portsmouth, NH Full Time
POSTED ON 9/15/2026
AVAILABLE BEFORE 1/13/2027

Weston & Sampson is seeking an entry-level Hydrologist with 0-5 years of experience for our Water discipline in one of our MA or NH offices. The Hydrologist will have experience in hydrologic and hydraulic modeling, ideally with a focus on urban stormwater.

What you’ll do:
  • Conduct analyses and computer-aided evaluations of surface water systems, including watersheds, rivers, and lakes.
  • Model and support design of stormwater BMPs, green infrastructure, and LID projects.
  • Prepare Letter of Map Revision applications.
  • Become proficient with software such as HydroCAD, HEC-HMS, HEC-RAS, and PCSWMM.
  • Work independently and effectively communicating results to a multidisciplinary team.
  • Prepare clear and concise written and verbal summaries of technical material for both technical and lay audiences.
  • Conduct field work to gather measurements, survey, and other observations to support surface water model development.
  • Some travel will be required to client meetings and project sites within New England and the mid-Atlantic and Carolinas.

What you’ll bring:
  • BS in Civil or Environmental Engineering, Hydrology, Hydrogeology, or similar degree is required.
  • MS in Civil or Environmental Engineering, Hydrology, Hydrogeology, or similar degree is a plus.
  • Engineer-in-Training (EIT) or ability to pass exam within the first six months of employment is preferred.
  • Experience with hydrologic (HydroCAD, HEC-HMS) and hydraulic modeling (HEC-RAS, SWMM) is preferred
  • Experience with GIS analyses and mapping is required.
  • Experience modeling and designing stormwater BMPs is a plus.
  • Experience modeling and designing green infrastructure and LID projects is a plus.
  • Successful candidates will have 0 to 5 years of experience and have a general familiarity with surface water hydrology and hydraulics.
  • Must have an interest in the evaluation and computer-aided modeling of surface water systems, including watersheds, rivers, and lakes.
  • Must be willing to collaborate remotely with coworkers in other office locations.
  • Excellent written and verbal communication skills and organizational/time management skills are required.
  • Must be willing/able to participate in field investigations. Some travel will be required to client meetings and project sites within New England. Valid driver’s license is required.

Salary Range $54,000 - $68,000 Based on Education

Overview:

At Weston & Sampson, you’ll work alongside more than 1,000 employee-owners who are passionate about improving our communities. From providing clean water to designing resilient infrastructure and sustainable environments, our work has a direct impact on quality of life. We’re looking for curious, driven professionals who want to contribute to innovative, impactful projects and grow with a team that supports them.

We are a 100% employee-owned, interdisciplinary firm offering design, engineering, and environmental services. Since our founding in 1899, we have worked to build a collaborative, forward-thinking environment grounded in respect for each other’s ideas.

We offer:

  • Meaningful work: Contribute to projects that protect and enhance the natural and built environments
  • Ownership mindset: As an employee-owner, your work directly contributes to our shared success
  • Growth opportunities: Build your career through mentorship, diverse projects, and clear advancement pathways
  • Flexible workplace: Work in a way that supports your life and not the other way around
  • Strong culture: Join a team that values collaboration, inclusion, and recognition

Our Commitment to Inclusion, Diversity, Equity & Access (IDEA)

We believe diverse perspectives make us stronger. Weston & Sampson is committed to fostering a culture of belonging where all employees feel valued, respected, and empowered. We actively support IDEA principles across our organization and in our daily work.

Ready to transform your environment? Let’s work together.

Explore opportunities and apply: https://www.westonandsampson.com/careers

A note to third-party recruiters

Weston & Sampson manages all recruiting directly. We do not accept unsolicited resumes without a signed agreement in place. Any unsolicited submissions will be considered property of Weston & Sampson, and we are not responsible for associated fees.


#entrylevelprofessionals

Salary : $54,000 - $68,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Hydrologist I (MA/NH)?

Sign up to receive alerts about other jobs on the Hydrologist I (MA/NH) career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$31,278 - $37,651
Income Estimation: 
$34,477 - $41,836
Income Estimation: 
$34,091 - $42,734
Income Estimation: 
$73,784 - $86,677
Income Estimation: 
$90,372 - $103,622
Income Estimation: 
$61,825 - $80,560
Income Estimation: 
$90,032 - $105,965
Income Estimation: 
$85,996 - $102,718
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Weston & Sampson Engineers Inc

  • Weston & Sampson Engineers Inc Rhinebeck, NY
  • Weston & Sampson is seeking a motivated and driven Project Engineer with 4-8 years of experience to perform highly skilled engineering and design work in t... more
  • 9 Days Ago

  • Weston & Sampson Engineers Inc Charleston, SC
  • Weston & Sampson Services is seeking a Lead Industrial Wastewater Treatment Operator to support contract operations and maintenance for municipal and indus... more
  • 15 Days Ago

  • Weston & Sampson Engineers Inc Plymouth, MA
  • Weston & Sampson is seeking an experienced Chief Wastewater Operator to oversee the operation and maintenance of municipal wastewater treatment facilities,... more
  • 16 Days Ago

  • Weston & Sampson Engineers Inc Portsmouth, NH
  • We are seeking a motivated Corporate Recruiter who is passionate about connecting talented professionals with meaningful careers. This role is ideal for a ... more
  • 5 Days Ago


Not the job you're looking for? Here are some other Hydrologist I (MA/NH) jobs in the Portsmouth, NH area that may be a better fit.

  • Weston & Sampson Portsmouth, NH
  • Weston & Sampson is seeking an entry-level Hydrologist with 0-5 years of experience for our Water discipline in one of our MA or NH offices. The Hydrologis... more
  • 6 Days Ago

AI Assistant is available now!

Feel free to start your new journey!