Senior Hydrogeologist

Terraphase Engineering Inc
Princeton, NJ

Job Description

Job Description

Terraphase offers cost-effective solutions to complex environmental and engineering challenges. We listen to our clients and focus on their needs. We apply technical expertise and keen awareness of the regulatory framework to achieve our clients'​ project goals and objectives. The combined talent and experience of Terraphase's engineers, geologists, and scientists form the foundation for a comprehensive environmental management approach.

The Position

Terraphase is seeking a part time Senior Hydrogeologist to support and lead water resources and hydrogeologic investigations. This role is intended to provide senior level technical expertise, mentoring, and project support, with a focus on groundwater supply development, aquifer testing, modeling, and regulatory coordination. The position is well suited for an experienced professional seeking a flexible schedule while remaining engaged in meaningful technical work.

The Role

• Provide senior level technical leadership on groundwater and water supply projects

• Design and review groundwater supply investigations and aquifer testing programs

• Support groundwater flow modeling efforts including MODFLOW • Provide technical oversight of drilling programs in unconsolidated and bedrock formations

• Support water allocation permitting and regulatory coordination • Review hydrogeologic data and technical reports

• Provide mentoring and technical guidance to staff

• Support proposal development and client communication as needed

Who You Are

• Bachelor's degree in Geology, Hydrogeology, or related field

• Advanced degree preferred

• Professional Geologist license or equivalent

• Minimum 10 years of hydrogeology and groundwater experience

• Strong background in water supply development and aquifer testing

• Experience with groundwater modeling and interpretation

• Ability to work independently and provide senior level judgment

• Strong communication and collaboration skills

Preferred Experience

• Municipal and industrial water supply projects

• Aquifer Storage and Recovery projects

• PFAS and groundwater quality evaluations

• Regulatory permitting and agency coordination

• Technical mentoring and training

Compensation for this position is based on years of experience, technical expertise, technical education, and geographic location.

Pay Range

$100,000—$130,000 USD

Who We Are

We are an environmental consulting company that offers cost-effective solutions to complex environmental and engineering challenges. We apply technical expertise and keen awareness of the regulatory framework to achieve our clients' project goals and objectives. The combined talent and experience of Terraphase's engineers, geologists, and scientists form the foundation for a comprehensive environmental management approach.

Terraphase was founded with the goal of developing a full-service engineering and consulting firm that provides high-quality services to clients with regional and nationwide operations. We are driven by creating valuable work products for our company and clients, and a rewarding environment for our employees. Our staff is comprised of registered professionals in civil engineering, geology, hydrogeology, and geotechnical engineering.

Our unique company culture philosophy of appreciating and recognizing individuals for their work, leadership, and mentoring, while supporting and encouraging a healthy personal and professional lifestyle help to make Terraphase one of the best places to work.

Benefits

Terraphase offers an extensive benefits package including; Medical, Dental, Vision, Employer Paid Life Insurance, Long-Term Disability, a generous 401(k) match, Commuter Benefits, TerraLunches, TerraTalks, Tuition/Licensing/Professional Development Reimbursement, Flexible Work Schedule, ongoing company-sponsored events.

EOE STATEMENT

Terraphase is an Equal Opportunity Employer, committed to an inclusive & diverse work environment where individual strengths and diverse viewpoints are respected and complement each other to achieve common goals. (EOE M/V/F/D)

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Posted 2026-04-23

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