Senior Hydrogeologist​/Groundwater Modeler

Senior Hydrogeologist / Groundwater Modeler

Geosyntec has an exciting opportunity for a Senior Hydrogeologist / Groundwater Modeler in our Long Beach, California office. This position is well‑suited for a talented, highly experienced individual who wants to contribute to innovative and challenging projects involving contaminated site assessment and remediation, groundwater management and water supply, litigation support, and contaminant fate and transport.

Primary

Location:

US‑CA‑Long Beach

Geosyntec is an innovative, international engineering and consulting firm serving private and public‑sector clients. 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:
Geosyntec Careers.

• Design and oversight of field investigations and development of conceptual hydrogeologic models.
• Serve as the technical specialist on impacted groundwater projects.
• Aquifer testing and hydrogeologic data analyses.
• Data analysis/visualization of site investigation data, including preparation of tables, maps, and figures using industry‑standard and cutting‑edge applications.
• Support fate and transport modeling, natural attenuation evaluations, and risk assessment.
• Task and project management, including planning and implementing investigation and remediation projects, budgeting, adherence to schedule, quality, client satisfaction, and profitability.
• Serve as a testifying expert on litigation matters involving hydrogeologic fate and transport.
• Prepare, review, 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.
• At times, perform fieldwork focused on contractor oversight for assessment and remediation projects.
• Travel to client or company project or office sites as needed.

• Bachelor's degree in geology, hydrogeology, or earth sciences. (required)
• Advanced degree in the same field. (preferred)
• Professional registration (e.g., P.G.). (preferred)

• At least 8 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 high‑resolution investigation methods such as LIF, MIP, and HPT. (preferred)
• Experience with visualization tools (AutoCAD, ArcGIS) and/or groundwater flow and geochemical modeling (Modflow, MT3D, equilibrium models). (preferred)
• Demonstrated success in client development and management. (required)
• Ability to handle multiple project assignments, meet strict deadlines, and travel to client facilities. (required)
• Valid U.S. driver's license and satisfactory driving record. (required)

Compensation:
Minimum Salary $130,280/year, Maximum Salary $182,390/year (Long Beach, CA). The base salary is one component of Geosyntec’s total compensation package. Actual compensation will be determined based on education, experience, skill set, and location.

Benefits include 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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