Principal Hydrogeologist / Groundwater Modeler Job
Job Description Job Attributes+
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Job ID
4219
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Job Location
1340 Treat Boulevard, Suite 208
Walnut Creek, CA 94597, US -
Job Category
Groundwater Modeling
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Job Type
Regular Full-Time
Overview
Do you want to build an impactful career to change the world for the better?
Geosyntec has an exciting opportunity for a Principal Quantitative Hydrogeologist / Groundwater Modeler in our Oakland or Walnut Creek, California offices. This position is well-suited for a talented, highly experienced individual who is interested in contributing to innovative and challenging projects involving contaminated site assessment and remediation, groundwater management and water supply, litigation support, and contaminant fate and transport.
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
- Manage challenging technical projects while leveraging your existing knowledge and experience to help Geosyntec expand its current practices and capabilities through business development and client management.
- Task and project management, including planning and implementing investigation and remediation projects, budgeting and budget management, adherence to schedule, quality, client satisfaction, and profitability.
- Serve as the technical specialist on impacted groundwater projects.
- Design and oversight of field investigations and development of conceptual hydrogeologic models.
- Design strategy and oversee aquifer testing and hydrogeologic data analyses.
- Design strategy and oversee data analysis/visualization of site investigation data including the preparation of tables, maps, and figures using both industry-standard and cutting-edge applications.
- Design strategy and oversee preparation of, review of, and certify technical reports, letters, memoranda, plans, specifications, and proposals.
- Lead meetings with clients, regulatory personnel, and other parties.
- Lead proposal efforts and other business development activities.
- Develop a client portfolio by acquiring new clients and effectively managing relationships to encourage repeat business.
- Foster trust-based relationships with clients, regulatory personnel, and other project stakeholders.
- Mentor, guide, and motivate early career staff assigned in the areas of project performance, cost, schedule management, client expectations and career development; work with employees to correct deficiencies.
- At times, the job may also include fieldwork including client and regulator site tours and health and safety auditing.
- 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 geology, hydrogeology, environmental sciences, civil engineering, environmental engineering, or similar. (required)
- Advanced degree of the same. (preferred)
- Professional registration (i.e., P.G., P.E.) (preferred)
Skills, Experience and Qualifications
- At least 10 years of related experience; or equivalent combination of education and experience. (required)
- Experience with developing and analyzing aquifer performance tests. (required)
- Demonstrated interest in contaminant remediation and quantitative hydrogeology. (required)
- Experience with visualization tools (e.g., ArcGIS, Leapfrog) and/or groundwater flow and geochemical modeling (Modflow, MT3D, geochemical equilibrium models). (preferred)
- Experience with multi-disciplinary project teams. (required)
- Demonstrated success in the development and management of clients. (required)
- Ability to succeed in a fast-paced consulting environment, handling multiple project assignments, meeting strict deadlines, and traveling to client facilities as needed. (required)
- Serve as a Testifying Expert on litigation matters involving hydrogeologic fate and transport. (preferred)
- Current OSHA 40-hr HAZWOPER training and refreshers. (preferred)
- 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)
This opportunity will be posted for at least five days. Below are the potential compensation ranges that we in good faith believe are applicable for this role at the time of this posting and are only applicable for jobs to be performed in the specified location(s) below. The typical base salary range for this position is just one component of Geosyntec’s total compensation package for employees. Actual compensation will be determined based on education, experience, skill set and location.
- Minimum Salary: $156,115/year / Maximum Salary: $218,560/year (Oakland, Walnut Creek)
We offer a comprehensive benefits package including, paid holidays, vacation, sick, and personal paid time off, medical, dental, vision, life, and disability insurance, 401(k), and other benefits to eligible employees.
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Additional Information
Who We Are
Change the world with us
At Geosyntec, our work is designed to make a measurable difference. We deliver innovative solutions that improve the environment while advancing human and ecological health and supporting sustainable social and economic outcomes - work with purpose, impact, and lasting value.
Geosyntec is an innovative consulting and engineering firm that partners with public and private sector clients to solve complex challenges involving the environment, natural resources, and civil infrastructure. We are recognized for technical leadership, multidisciplinary collaboration, and practical problem solving - bringing engineers, scientists, and technical professionals together to deliver solutions that matter.
Our teams support a broad portfolio of projects, including environmental remediation, water resources, waste management, and civil and geotechnical engineering. The work we do calls for thoughtful analysis, adaptability, creativity, and strong technical judgment—offering opportunities to contribute to projects that protect communities, strengthen infrastructure, and safeguard natural systems.
Whether you are building your professional foundation or bringing deep expertise, Geosyntec supports continuous growth. You’ll have opportunities to apply your skills in new settings, expand your capabilities, strengthen your practice, and take on meaningful challenges that accelerate your development.
A Collaborative, Practitioner Led Culture
Collaboration is central to how we work. Our teams bring together diverse technical backgrounds and experiences to solve problems from multiple perspectives—creating an environment where people rely on one another, share knowledge, and deliver strong outcomes for clients. We invest in our people through mentoring, professional development, and opportunities to contribute beyond a single role or assignment.
Learn. Develop. Grow.
There is no single career path at Geosyntec. We support flexible, meaningful career development so professionals can pursue areas they are passionate about, build on prior experience, and continue growing - even as circumstances evolve.
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