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Ecological Risk Assessor

CDM Smith

Multiple U.S. locationsJob$83–136K/yrSeen todaySeen in employer's feed today

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At a glance

Compensation
$83–136K/yr
Location
Multiple U.S. locations
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.

Professional Scientist Registration Or Certification

Job overview

CDM Smith is seeking an Environmental Scientist/Environmental Risk Assessor to support human health and ecological projects, primarily assisting with regulatory compliance for federal, state, and local environmental work. The role supports site investigations, risk assessments, project planning, technical evaluations, and collaboration with multidisciplinary teams. It also includes mentoring junior staff, proposal support, technical writing, and presenting at scientific venues.

Skills & qualifications

RequiredNice to have

Skills

Field ProtocolsScientific MethodsMicrosoft Business SoftwareVerbal CommunicationWritten CommunicationEnvironmental RegulationsToxicologyEnvironmental ScienceChemistryPublic HealthContaminant AssessmentIEUBK ModelAdult Lead Methodology ModelEPA RSL ToolsVISL ToolsRadionuclide PRG CalculatorBiotic Ligand ModelLANL EcoRisk DatabaseCERCLA RI/FSState Environmental ProgramsClient Meeting SupportContaminated Sediment Assessment

Qualifications

Bachelor's in Science or RelatedProfessional Scientist Registration or CertificationMaster's in Science or Related7 Years Related Experience7 Years Environmental Experience

Full job description

Company Overview

Check out this video and find out why our team loves to work here! (https://www.cdmsmith.com/resources/videos/meet-cdm-smith)

Join Us! CDM Smith – where amazing career journeys unfold.

Imagine a place committed to offering an unmatched employee experience. Where you work on projects that are meaningful to you. Where you play an active part in shaping your career journey. Where your co-workers are invested in you and your success. Where you are encouraged and supported to do your very best and given the tools and resources to do so. Where it’s a priority that the company takes good care of you and your family.

Our employees are the heart of our company. As an employer of choice, our goal is to provide a challenging, progressive and inclusive work environment which fosters personal leadership, career growth and development for every employee. We value passionate individuals who challenge the norm, deliver world-class solutions and bring diverse perspectives. Join our team, and together we will make a difference and change the world.

Job Description

We are seeking an Environmental Scientist/Environmental Risk Assessor to support Human Health and Ecological projects for the Environmental Services Group. This candidate will primarily assist with regulatory compliance efforts for federal, state, and local environmental projects in CDM Smith’s portfolio.

Roles and responsibilities include, but are not limited to the following:

  • With general direction, supports site investigations and basic to high complexity analysis and interpretation of site data relevant to human health risk assessments (HHRAs) and ecological risk assessments (ERAs).

  • Supports human health and ecological risk teams and contributes to the process of project tasks, including development of data quality objectives (DQOs), Quality Assurance Project Plans (QAPPs), and sampling and analysis plans (SAPs).

  • With general direction, supports planning for and preparation of conceptual site exposure models (CSEMs), Human Health Risk Assessments (HHRAs), Screening Level Ecological Risk Assessments (SLERAs), and Baseline Ecological Risk Assessments (BERAs) of basic to high complexity.

  • Collaborates with scientists, geologists, engineers, and toxicologists to provide advice and expertise on the selected project approach, and to implement the approved approach (e.g., investigation, remediation, etc.).

  • On oversight projects, provides technical evaluation of responsible party’s project documents and supports technical meetings with clients and responsible parties.

  • Provides technical guidance and training to more junior staff and mentors them for future growth within the discipline and firm.

  • Collaborates with sales staff to support proposals in response to current and potential client requests for proposal (RFPs).

  • Contributes to firm's technical knowledge by developing white papers on emerging environmental issues.

  • Attends and presents at conferences, symposia, and other scientific venues to improve the visibility of the firm's products and services in collaboration with applicable sales staff.

  • Performs other duties as required.

Skills & Abilities

  • Expert Knowledge of standard field protocols for their respective discipline.

  • Expert knowledge of scientific methods and processes.

  • Expert Knowledge of Microsoft business software (excel, word, etc.).

  • Excellent verbal and written communications skills.

  • Expert knowledge of regulations (federal, state, and local) governing environmental review and project implementation.

Qualifications

  • Bachelor's degree in Science or related discipline with professional scientist registration/certification OR Master's degree in Science or related discipline.

  • 7 years of related experience.

  • Domestic and/or international travel may be required. The frequency of travel is contingent on specific duties, responsibilities, and the essential functions of the position, which may vary depending on workload and project demands.

  • Equivalent additional directly related experience will be considered in lieu of a degree.

Preferred Qualifications

  • Background in toxicology, environmental science, chemistry, public health, or related disciplines desired with a minimum of seven years of experience in environmental consulting, regulation or a similar environmental field.

  • Experience with various contaminant classes including (but not limited to) volatile organic compounds (VOCs), metals, per- and polyfluoroalkyl substances (PFAS), radionuclides, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs).

  • Experience with software/digital tools including (but not limited to) the Integrated Exposure Uptake Biokinetic (IEUBK) model, adult lead methodology (ALM) model; U.S. Environmental Protection Agency Regional Screening Level (RSL), Vapor Intrusion Screening Level (VISL), and Radionuclide Preliminary Remediation Goal (PRG) calculator tools; Biotic Ligand Model; Los Alamos National Laboratory (LANL) EcoRisk database, etc.

  • Familiarity with Remedial Investigation/Feasibility Study (RI/FS) requirements and guidance under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as well as other state-based programs (e.g., California Department of Toxic Substances Control [DTSC], District Department of the Environment [DDOE]).

  • Experience supporting clients directly in meetings resolving issues with responsible parties

  • Experience specific to contaminated sediment sites is desired.

Amount of Travel Required

10% or less

EEO Statement

We attract the best people in the industry, supporting their efforts to learn and grow. We strive to create a challenging and progressive work environment. We provide career opportunities that span a variety of disciplines and geographic locations, with projects that our employees plan, design, build and operate as diverse as the needs of our clients. CDM Smith Inc. and its divisions and subsidiaries are an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, pregnancy related conditions, childbirth and related medical conditions, sexual orientation, gender identity or gender expression), national origin, age, marital status, physical or mental disability, veteran status, citizenship status, genetic information or any other characteristic protected by applicable law.

Background Check and Drug Testing Information

CDM Smith Inc. and its divisions and subsidiaries (hereafter collectively referred to as “CDM Smith”) reserves the right to require background checks including criminal, employment, education, licensure, etc. as well as credit and motor vehicle when applicable for certain positions. In addition, CDM Smith may conduct drug testing for designated positions. Background checks are conducted after an offer of employment has been made in the United States. The timing of when background checks will be conducted on candidates for positions outside the United States will vary based on country statutory law but in no case, will the background check precede an interview. CDM Smith will conduct interviews of qualified individuals prior to requesting a criminal background check, and no job application submitted prior to such interview shall inquire into an applicant's criminal history. If this position is subject to a background check for any convictions related to its responsibilities and requirements, employment will be contingent upon successful completion of a background investigation including criminal history. Criminal history will not automatically disqualify a candidate. In addition, during employment individuals may be required by CDM Smith or a CDM Smith client to successfully complete additional background checks, including motor vehicle record as well as drug testing.

Massachusetts Applicants

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Additional Pay Range Information

CDM Smith is committed to fair and equitable compensation practices. This pay range is a good faith estimate representative of all experience levels for the geographic location assigned to the position. In addition to geographic location, a candidate’s salary is determined by several other factors including, but not limited to, the role, function and associated responsibilities, relevant work experience, skills, required certifications, and education/training.

Additional Compensation

All bonuses at CDM Smith are discretionary and may or may not apply to this position.

Visa Sponsorship Available

No-We will not support sponsorship in the United States, i.e. H-1B or TN Visas for this position

Agency Disclaimer

All vendors must have a signed CDM Smith Placement Agreement from the CDM Smith Talent Acquisition Manager to receive payment for your placement. Verbal or written commitments from any other member of the CDM Smith Inc. and its divisions and subsidiaries staff will not be considered binding terms. All unsolicited resumes sent to CDM Smith Inc. and its divisions and subsidiaries and any resume submitted to any employee outside of CDM Smith Talent Acquisition Team will be considered property of CDM Smith. CDM Smith Inc. and its divisions and subsidiaries will not be held liable to pay a placement fee.

Pay Range Max

USD $136,240.00

Pay Range Min

USD $82,576.00

How this job compares

Set against the 769 open Environmental Scientist jobs on Olive Jobs, counted October 29, 2026.

Pay
  • This posting$83–136K/yr
  • US median$83–136K/yr519 salary ranges

This range's midpoint, $109K, is close to the US median midpoint ($109K) — in the middle half of Environmental Scientist salary ranges across the US.

Openings
Olive Jobs lists 769 open Environmental Scientist jobs across the US. 2% of them nationwide are listed as remote or flexible.
Hiring the most across the US
Experience
This posting asks for at least 7 years of experience; Environmental Scientist postings that state a minimum ask for 7 years at the median (632 postings).
Education
317 of the 769 open Environmental Scientist jobs (41%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on October 29, 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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