Experienced Environmental Scientist – Site Characterization, Remediation, and Emerging Contaminants

Geosyntec Consultants•Lakewood, CO

9d•Hybrid

About The Position

Geosyntec is seeking an Experienced Environmental Scientist – Site Characterization, Remediation, and Emerging Contaminants to join their Lakewood, Colorado office. This role is ideal for a seasoned scientist and technical leader with a strong background in contaminated site assessment, remediation, and emerging contaminants, particularly PFAS. The position will involve supporting complex environmental investigation and remediation projects for a diverse range of clients, including site characterization, groundwater and soil assessment, source evaluation, remedial alternatives evaluations, remedial strategy development, and translating technical findings into practical site-management approaches. Geosyntec is an international engineering and consulting firm known for its technical leadership and client service, offering competitive pay, benefits, and well-being programs.

Requirements

Bachelor’s degree in environmental science, geology, environmental engineering, civil engineering, chemistry, biology, natural resources science, or a closely related field.
At least 7 years of experience (8+ years preferred) in environmental consulting, applied research, remediation, contaminated site assessment, site characterization, or federal environmental programs, with experience involving PFAS, emerging contaminants, or other regulated contaminants; or equivalent combination of education and experience.
Experience managing multidisciplinary technical teams, scopes, budgets, schedules, subcontractors, task orders, proposal efforts, technical QA/QC, and multiple concurrent consulting or research assignments.
Excellent technical writing, verbal communication, presentation, mentoring, and organizational skills, with the ability to translate complex hydrogeologic, geochemical, analytical, and regulatory information into clear recommendations for clients and project teams.
Ability to thrive in a fast-paced consulting environment, meet strict deadlines, manage competing priorities, collaborate across disciplines, and travel to client facilities or project sites as needed.
Valid U.S. driver’s license and a satisfactory driving record for business travel.

Nice To Haves

Advanced degree in environmental science, environmental engineering, civil engineering, hydrogeology, geochemistry, biogeochemistry, or a closely related technical discipline.
Demonstrated experience leading or providing technical support for environmental investigations, contaminant fate-and-transport analyses, remedial alternatives evaluations, site restoration programs, or remediation projects for federal, industrial, municipal, public-sector, and private-sector clients.
Experience preparing, reviewing, and managing technical documents such as work plans, technical memoranda, reports, conceptual site model summaries, remedial alternatives evaluations, and decision-support products.
Experience with environmental data analysis and visualization tools used to interpret complex environmental datasets, including statistical analysis, spatial visualization, hydrogeologic interpretation, maps, tables, figures, and client-ready graphics.
Experience overseeing or supporting field investigations, sampling programs, field demonstrations, bench-scale or pilot-scale treatability studies, and research-to-practice efforts involving impacted soil, groundwater, wastewater, sediment, surface water, biosolids, or related media.
Current OSHA 40-hour HAZWOPER training and annual 8-hour refreshers.
Active involvement in PFAS technical guidance, professional organizations, research collaborations, conference presentations, publications, or technology-transfer efforts.

Responsibilities

Provide technical leadership for contaminated site assessment, remediation, applied research, fate-and-transport evaluations, and remedial decision support for federal, industrial, municipal, public-sector, and private-sector clients, including projects involving PFAS and other emerging contaminants.
Lead and support site characterization and remedial alternatives evaluations, including source-area delineation, contaminant distribution, groundwater and soil assessment, migration pathway evaluations, and remedial strategy development for PFAS and non-PFAS contaminants.
Develop, refine, and communicate high-resolution and three-dimensional conceptual site models integrating hydrogeologic, geochemical, analytical, statistical, and modeling results to support adaptive investigation strategies and defensible remedial decisions.
Plan, coordinate, and technically oversee investigation activities involving soil, groundwater, sediment, surface water, porewater, soil stockpiles, vadose-zone media, and other impacted matrices while maintaining a strong focus on health, safety, quality, and data defensibility.
Prepare, review, and manage technical deliverables, including work plans, quality assurance plans/sampling and analysis plans, conceptual site model products, technical memoranda, treatability evaluations, decision-support materials, proposals, presentations, and regulatory or client briefing materials.
Coordinate with clients, federal and state regulatory agencies, installation stakeholders, subcontractors, academic collaborators, technical experts, and internal teams to support regulatory engagement, technical alignment, and successful project delivery.
Support proposal development, client development, technical marketing, and research-to-practice initiatives related to contaminated site assessment, remediation, emerging contaminants, treatment, source evaluation, and remedial decision support.
Mentor early and mid-career staff in environmental data analysis, conceptual site model development, technical interpretation, and clear communication of complex scientific results.
Drive personal, company, and rental vehicles to client or company project or office sites, and other business locations, as needed.