Senior Engineering Hydrogeologist

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected. In this place, 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?

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 across the globe.

We believe waste is more than management, it's also an opportunity to innovate. As part of our Waste sector, you'll help shape solid waste infrastructure and environmental stewardship. With a top‑tier industry ranking, our team delivers comprehensive solutions that span waste planning, remediation, engineering, and implementation. You'll collaborate closely with clients and communities to design sustainable, cost‑effective systems that contribute to cleaner environments and healthier communities. This isn't just a job, it's a chance to drive meaningful changes in the waste industry and build a legacy of sustainability.

Senior Hydrogeologist - Responsibilities

Lead complex hydrogeologic investigations with a focus on difficult geological settings commonly found in the Northeast and Mid‑Atlantic region (e.g., fractured rock, coastal plain).

Oversee data collection, processing, analysis, and interpretation, including:

Building complex, dynamic conceptual site models.

Developing and overseeing high‑resolution site‑characterization strategies.

Using modern remediation hydrogeology concepts (such as mass‑flux/discharge or DNAPL assessment) to develop complex groundwater remediation strategies.

Field groundwater level and quality data‑collection methods.

Familiarity with design, construction, and development of groundwater monitoring wells.

Development of geologic and hydrogeologic cross‑sections utilizing geologic and geophysical data.

Geospatial and geostatistical analysis.

Interpretation of subsurface aquifer conditions on a site and regional scale.

Development of hydrographs and other graphic presentations of hydrogeologic data.

Lead the assessment of groundwater contaminant plume dynamics and make recommendations for the management and/or remediation of contaminant plumes.

Be viewed as a technical expert with recognized authority in a specialty that resolves problems of greater scope and complexity.

Project management, including direction of junior staff, providing technical review and oversight, and mentoring.

Report and proposal preparation, including scopes of work, project budgeting, tracking, and schedules.

Client interaction and presentations.

Perform other duties as needed.

Preferred Qualifications

Advanced degree in Geology, Geosciences, Hydrogeology, Engineering, or a closely related field.

Experience conducting hydrogeologic assessments and updating conceptual site models at active, inactive, and abandoned mine sites or projects.

Experience implementing passive and/or active water treatment systems.

Experience implementing and assessing flow‑control structures.

Experience with directional drilling into mine workings and fault‑zone structures.

40‑hour HAZWOPER, 30‑hour OSHA Construction, and MSHA 40‑hour Underground Miner training.

Local candidates preferred.

Required Qualifications

Bachelor's degree in Environmental Studies, Hydrology, Civil Engineering, Water Resources or a closely related field.

10 or more years of analysis, modeling, design, and management experience.

Project management skills a plus.

An attitude and commitment to being an active participant of our employee‑owned culture is a must.

Benefits
We provide a comprehensive benefits package that promotes employee ownership, health, performance, and success. Benefits include medical, dental, vision, short and long‑term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus, and tuition reimbursement.

Salary ranges: Woodcliff Lake, NJ: $138,388 - $197,625; New York, NY: $138,388 - $197,625; Pennington, NJ: $127,271 - $181,815.

Location
Primary: Woodcliff Lake, NJ
Other: New York, NY; Pennington, NJ

Job Posting
Dec 31, 2025

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