Senior Level Hydrogeologist Jobs
Senior level hydrogeologist jobs place experienced professionals in charge of complex groundwater investigations, regulatory strategy, and the junior staff or project teams executing the work. Openings are concentrated in Consulting & Professional Services, Government & Public Sector, and Mining & Natural Resources, with a mix of field-intensive and hybrid arrangements, and employers like Stantec, Hazen and Sawyer, and HDR hiring at this level now.
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Senior Groundwater Modeler / Hydrogeologist
- (195470)
At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?
Watch Our Story:' https://www.hdrinc.com/our-story'
Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.
In the role of Groundwater Modeler/Hydrogeologist we'll count on you to:
- Work under more-senior modelers, using prescribed methods in various data analysis and modeling assignments as part of hydrodynamic, sediment transport and water quality modeling projects
- Evaluate thermal impacts, pathogens, biochemical (BOD) dissolved oxygen, nutrients and algae, or organic or metal contamination in lakes, streams, rivers, estuaries or coastal waters
- Acquire, organize and analyze environmental data
- Set up and execute mathematical models
- Perform quality-control checks on model input and results
- Participate in project meetings, proposal preparation, report writing and presentations
- Develop statistical and graphical comparisons of model results and data
- Perform other duties as needed
Preferred Qualifications
- A minimum of ten (10) years of professional experience as a hydrogeologist or closely aligned profession. Advanced degrees (Master's or Ph.D.) in one of the above fields will substitute for one year of the required experience.
- Demonstrated experience conducting contaminated site investigations involving sample collection and analysis of various media including soil, groundwater, surface water, and sediment.
- Experience preparing groundwater monitoring reports and evaluating laboratory analytical data.
- Demonstrated knowledge of conceptual site models and the ability to critically analyze these models to identify data gaps and inform field investigation scoping activities.
- Demonstrated experience performing drilling, well installation, slug tests, and pump tests in consolidated and unconsolidated formations.
- Professional Geologist (PG) or Certified Professional Geologist (CPG) certification.
- Prior experience with Federal environmental regulations (CCR, CERCLA, RCRA, CWA, CAA, etc).
- Experience working on Coal Combustion Residual (CCR) projects involving groundwater monitoring, statistical analysis evaluations, site characterization, and corrective measures development.
- Familiarity using boring log digitization software such as gINT or OpenGround and other hydrogeological software including Surfer and Aqtesolv.
- Ability and willingness to perform physically demanding tasks in adverse environmental conditions (rugged terrain, remote locations, hot and cold temperatures).
OSHA 40 Hour HAZWOPER Certification and MSHA training are a plus.
- Professional Engineer (PE) license
- Candidates who reside locally in the Greater Philadelphia area are preferred
#LI-EH1
- Bachelor's degree in environmental engineering/science, oceanography or closely related field
- A minimum of 7 years of experience in hydrodynamic or water quality modeling projects
- Strong analytical and problem-solving skills
- Strong oral and written communication skills
- Experience with Microsoft Office Suite
- Self-motivated, able to work independently and with a project team to completion of task
- Excellent oral and written communication skills
- An attitude and commitment to being an active participant of our employee-owned culture is a must
What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.
Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.
Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.
United States-Pennsylvania-Plymouth Meeting
United States-Pennsylvania-Philadelphia
Waste
Full-time
Regular
Site Investigation and Remediation
Aug 20, 2026
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Top Industries Hiring
- Consulting & Professional Services13
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Senior Level Hydrogeologist Jobs: Frequently Asked Questions
How do I get a senior level hydrogeologist job?
Employers at this level look for candidates who can independently lead site investigations, manage regulatory agency relationships, and mentor junior staff without close supervision. Demonstrating ownership of past projects from scoping through final reporting carries more weight than credentials alone. Technical depth in groundwater modeling software, aquifer testing, or remediation design gives candidates a clear edge over generalists.
Which companies hire senior level hydrogeologists?
Companies hiring senior level hydrogeologists right now include Stantec, Hazen and Sawyer, and HDR, based on current listings on Migrate Mate as of August 2026. Hiring at this level tends to come from environmental and geotechnical consulting firms, government contractors, and extractive industry operators managing long-term site compliance programs.
Are there remote senior level hydrogeologist jobs?
Yes, though most roles retain some field or site component. About 50% of senior level hydrogeologist openings are remote or hybrid as of August 2026, typically covering report writing, data review, regulatory correspondence, and project management responsibilities that can be handled off-site between field mobilizations.
What makes a hydrogeologist role senior level?
Senior level hydrogeologist roles are defined by independent technical authority, not just years on the job. These positions expect you to own project outcomes, set the technical approach for investigations, interpret complex datasets without oversight, and guide less experienced staff through fieldwork and reporting. Regulatory negotiation and client-facing responsibilities are common at this stage.
Which industries hire the most senior level hydrogeologists?
Senior Level hydrogeologist roles concentrate in Consulting & Professional Services, Government & Public Sector, and Mining & Natural Resources, based on current listings on Migrate Mate as of August 2026. These sectors drive demand because they involve large-scale groundwater compliance obligations, long-duration remediation projects, or resource extraction activities that require sustained senior technical oversight.