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Principal Hydrogeologist / Groundwater Modeler

Geosyntec Consultants

Rancho Cordova, CA · HybridFull-time$149–209K/yrPosted 1mo agoStill listed today

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At a glance

Compensation
$149–209K/yr
Location
Rancho Cordova, CAHybrid
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Valid U.S. Driver's License, required

Job overview

Geosyntec Consultants seeks a highly experienced Principal Quantitative Hydrogeologist / Groundwater Modeler for its Sacramento office. The role involves contaminated-site assessment and remediation, groundwater management and water supply, litigation support, and contaminant fate and transport. The principal will manage technical projects, support business development and client relationships, oversee investigations and modeling, and mentor early-career staff.

Skills & qualifications

RequiredNice to have

Skills

Aquifer Performance Testing, requiredContaminant Remediation, requiredQuantitative Hydrogeology, requiredArcGIS, nice to haveLeapfrog, nice to haveGroundwater Flow Modeling, nice to haveGeochemical Modeling, nice to haveMultidisciplinary Teamwork, requiredClient Development, requiredProject Management, nice to haveDeadline Management, requiredTravel, requiredTestifying, nice to have

Qualifications

Bachelor's in Related Field, requiredAdvanced Degree in Related Field, nice to have10+ Years Related Experience, requiredProfessional Registration, nice to haveOSHA 40-Hour HAZWOPER, nice to haveValid U.S. Driver's License, required

Benefits

Paid Time Off
Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match

Full job description

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 Sacramento, California office. 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: $149,330/year / Maximum Salary: $209,060/year (Sacramento)

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.

#LI-TH1

#LI-Hybrid

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How this job compares

Set against the 530 open Environmental Consultant jobs on Olive Jobs, counted November 10, 2026.

Pay
  • This posting$149–209K/yr
  • California median$120–181K/yr61 salary ranges
  • US median$98–158K/yr331 salary ranges

This range's midpoint, $179K, is 19% above the California median midpoint ($150K) — in the top quarter of Environmental Consultant salary ranges in California.

Openings
Olive Jobs lists 64 open Environmental Consultant jobs in California and 530 across the US. 11% of them nationwide are listed as remote or flexible.
Hiring the most in California
Experience
This posting asks for at least 10 years of experience; Environmental Consultant postings that state a minimum ask for 7 years at the median (481 postings).
Education
290 of the 530 open Environmental Consultant jobs (55%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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