Experienced Environmental Scientist - Site Characterization, Remediation, and Emerging Contaminants Geosyntec Consultants paid time off, paid holidays, 401(k) United States, Colorado, Lakewood Sep 03, 2026 Experienced Environmental Scientist - Site Characterization, Remediation, and Emerging Contaminants

Primary Location US-CO-Lakewood

ID 2026-4820

Category Remediation Position Type Regular Full-Time Remote No Overview Do you want to build an impactful career to change the world for the better? Geosyntec has an exciting opportunity for an Experienced Environmental Scientist - Site Characterization, Remediation, and Emerging Contaminants to join our Lakewood, Colorado office. This role is well aligned for an experienced scientist and technical leader with a strong background in contaminated site assessment, remediation, and emerging contaminants, including PFAS. The position will support complex environmental investigation and remediation projects for federal, industrial, municipal, public-sector, and private-sector clients, including site characterization, groundwater and soil assessment, source evaluation, remedial alternatives evaluations, remedial strategy development, and practical translation of technical findings into defensible site-management approaches. 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 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. Education and Licensure Bachelor's degree in environmental science, geology, environmental engineering, civil engineering, chemistry, biology, natural resources science, or a closely related field. (required)

Advanced degree in environmental science, environmental engineering, civil engineering, hydrogeology, geochemistry, biogeochemistry, or a closely related technical discipline. (preferred) Skills, Experience and Qualifications 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. (required)

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. (preferred)

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. (preferred)

Experience managing multidisciplinary technical teams, scopes, budgets, schedules, subcontractors, task orders, proposal efforts, technical QA/QC, and multiple concurrent consulting or research assignments. (required)

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. (preferred)

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. (preferred)

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. (required)

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. (required)

Current OSHA 40-hour

HAZWOPER

training and annual 8-hour refreshers. (preferred)

Active involvement in PFAS technical guidance, professional organizations, research collaborations, conference presentations, publications, or technology-transfer efforts. (preferred)

Field work and overnight travel 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:

$97,030/year /

Maximum:

$172,530/year (Lakewood, CO) 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 #LI-Onsite