Principal Civil / Environmental Engineer

Geosyntec Consultants, Inc.•Walnut Creek, CA

2d•$156,115 - $218,560

About The Position

Geosyntec is seeking a Principal Civil/Environmental Engineer for its California practice, with flexibility to work from the Oakland office or other locations in Northern or Southern California. The role is suited to an experienced civil/environmental engineering consultant with expertise in landfill closure and redevelopment, gas and vapor intrusion mitigation, construction engineering and management, environmental remediation, probabilistic cost estimating, and litigation support. This senior leadership position provides technical direction, project delivery oversight, client advisory support, and practice growth across complex redevelopment, solid waste, remediation, and construction-related environmental projects. The Principal Engineer will lead multidisciplinary teams, serve as Engineer in Responsible Charge for gas and vapor intrusion mitigation systems, advise clients and stakeholders, support business development, and mentor technical staff. The position may require driving to client, project, and office locations and travel as needed. Geosyntec is an international engineering and consulting firm serving private- and public-sector clients on environmental, natural-resource, and civil-infrastructure challenges. The company describes its compensation as competitive and offers benefits and well-being programs to support employees and their families.

Requirements

Bachelor’s degree in civil engineering, environmental engineering, geotechnical engineering, construction engineering/management, or a closely related engineering discipline.
Current Professional Engineer (PE) registration, with California registration or the ability to obtain California registration promptly.
At least 10 years of relevant consulting, engineering design, project management, or construction management experience in civil/environmental engineering, or an equivalent combination of education and experience.
Demonstrated expertise in landfill closure, post-closure care, redevelopment, landfill-gas management, solid-waste engineering, brownfields redevelopment, and environmental remediation.
Significant experience designing, implementing, and evaluating gas and vapor intrusion mitigation systems for methane, mercury vapor, radon, VOCs, and other regulated constituents.
Strong working knowledge of California and federal environmental regulatory programs and agencies, including DTSC, RWQCB, CalRecycle, local enforcement agencies, BAAQMD, and USEPA.
Experience leading multidisciplinary project teams through investigation, design, permitting, construction observation, construction quality assurance, regulatory closure, and redevelopment support.
Ability to prepare and review technical deliverables such as engineering plans and specifications, remedial action documents, closure plans, monitoring plans, cost estimates, expert reports, technical memoranda, and regulatory correspondence.
Demonstrated client relationship management, business development, proposal leadership, and trusted-advisor skills with private, public-sector, institutional, legal, and developer clients.
Excellent written and verbal communication skills, including preparing defensible technical documents, explaining complex engineering concepts, presenting to clients and regulators, and supporting dispute resolution or legal proceedings.
Commitment to mentoring staff, developing technical teams, maintaining quality standards, and contributing to professional organizations or industry guidance initiatives.
Ability to manage multiple priorities in a fast-paced consulting environment and travel to client, project, and office locations as needed.
Valid U.S. driver’s license and satisfactory driving record for business travel.
Health and safety training, medical monitoring, and client-driven background or drug screening may be required.

Nice To Haves

Advanced degree, preferably an M.S. or Ph.D., in civil engineering, environmental engineering, construction engineering and management, or a related discipline.
Relevant contractor licensing, hazardous materials certification, or other professional credentials.
Experience applying probabilistic cost estimating, sensitivity analysis, decision analysis, and risk-informed approaches to feasibility studies, cost allocation, cost recovery, and construction planning.
Litigation support or expert witness experience involving environmental remediation, construction claims, landfill closure, cost allocation, hazardous waste, or multi-party environmental matters.

Responsibilities

Lead and manage complex civil/environmental engineering projects involving landfill investigation, closure, post-closure land use, redevelopment, environmental remediation, gas and vapor intrusion mitigation, and construction support.
Serve as Engineer in Responsible Charge for gas and vapor intrusion mitigation systems addressing methane, mercury vapor, radon, VOCs, and other indoor-air intrusion concerns.
Oversee design, construction quality assurance, startup, operation, maintenance, monitoring, and performance evaluation of sub-slab and related mitigation systems in accordance with applicable regulatory requirements.
Provide senior technical leadership on landfill closure and redevelopment projects, including closure and post-closure land-use plans, landfill-gas monitoring plans, methane-mitigation plans and specifications, completion reports, and OM&M plans.
Direct multidisciplinary teams providing geotechnical, environmental, site/civil design, construction observation, special inspection, remediation, and redevelopment support.
Develop and review plans, specifications, contract documents, work plans, site management plans, remedial action plans, regulatory submittals, cost estimates, and technical reports.
Apply decision analysis and probabilistic methods to construction cost estimating, feasibility studies, remediation cost recovery, cost allocation, and risk-informed project planning.
Provide litigation support and expert consulting, including document review, expert reports, technical memoranda, deposition and arbitration support, and sworn testimony as appropriate.
Advise clients on regulatory strategy and technical approaches for brownfields, landfill, hazardous-waste, groundwater, vapor-intrusion, PFAS, petroleum-hydrocarbon, and redevelopment projects.
Build and maintain relationships with developers, public agencies, institutional clients, attorneys, regulators, contractors, architects, and other project stakeholders.
Support business development through client engagement, proposal preparation, technical presentations, professional association involvement, and identification of strategic growth opportunities.
Mentor and develop technical staff in engineering design, construction quality assurance, project management, regulatory strategy, cost estimating, technical writing, and client service.
Drive personal, company, and rental vehicles to client, project, and office locations as needed.