- About Gradient
- Services & Projects
- Product Stewardship and Safety
- Risk Sciences
- Environmental Sciences
- Environmental Cost Analysis
- Global Regulatory Compliance
- Senior Scientists
- Lisa A. Bailey
- Ali Boroumand
- Joel M. Cohen
- Amy Dale
- David G. Dodge
- Grace I. Greenberg
- Mary L. Hixon
- Laura E. Kerper
- Jessie M. Kneeland
- John M. Kondziolka
- Cynthia J. Langlois
- Julie C. Lemay
- Tamara D. Lunsman
- Rosemary Mattuck
- David B. Mayfield
- Matthew J. Mayo
- Isaac Mohar
- Margaret C. Pollock
- Robyn L. Prueitt
- Kathleen A. Radloff
- James W. Rice
- Jeffrey T. Rominger
- Sara Pacheco Shubin
- Meghna H. Swamy
- Caroline B. Tuit
- Matthew P. Tymchak
- Jiaru Zhang
- Kirsten (Ke) Zu
- Research & Information Specialists
- Evolving Issues
- News & Events
- Recent Scientific Papers
Gradient is continually looking for talented and qualified individuals to join our team. Critical thinking, supported by a foundation of rock-solid scientific, research, writing, and client development skills are hallmarks of successful Gradient staff. The ability to communicate technical concepts, both in writing and orally, cannot be overstated.
Staff at all levels must be proficient at researching and distilling technical literature and regulations, with the assistance of Gradient's library group. We also seek staff with specialized computer skills, such as statistical, graphing, and modeling expertise. Advancement is based on merit, and we encourage each individual to assume increasing responsibilities in task management, project management, company service, and client or agency contact. All positions are located in Cambridge or Seattle.
Principal Level Candidates
Candidates must have national peer and client recognition of their technical expertise, and the demonstrated ability to communicate effectively with clients, agencies, the public, and in court. Complimentary skills in risk or environmental sciences, as well as a relentless eye for quality and service are the attributes we seek. Gradient principals must have demonstrated sales success and be leaders in their scientific area.
Focus on environmental and human health risk assessment issues by performing epidemiology, toxicology, and statistical analyses for interesting, science-based evaluations. Candidate enjoys technically-challenging work for projects that involve regulatory comment, litigation support, product safety assessments, and human health risk assessment. Position requires a Ph.D. in epidemiology, environmental health, toxicology, or a related field as well as strong organizational and written communication skills. Applicants must have strong statistical skills and the ability to critically evaluate epidemiology data. Prior consulting experience and knowledge of environmental regulations, air modeling, and other exposure assessment techniques is a plus.
Excellent opportunity for a biostatistician who can apply relevant skills in biostatistics, statistics, and mathematics to toxicology- and epidemiology-related projects. Excellent analytic and critical thinking, writing, and communication skills are required. Must have the ability to organize and work with large datasets, and should be able to express complex statistical concepts and technical information to researchers and non-scientific audiences. Master's/PhD degree in biostatistics, statistics, mathematics or a related field of study with at least one year of coursework in statistics or biostatistics required. Coursework or experience in the areas of toxicology, epidemiology, or environmental sciences is a plus.
Position for driven, high-energy individual to assist colleagues and clients by applying knowledge of regulatory toxicology and chemistry to projects involving chemical compliance, product stewardship, and green chemistry-based alternatives assessments. Expertise in evaluating chemical hazards under the Globally Harmonized System (GHS) is preferred. Knowledge of TSCA and other international chemical compliance schemes (e.g., REACH), as well as an understanding of developing green chemistry-based hazard initiatives is highly desired. Experience with changing landscape of SDS requirements also highly valued. Must possess solid technical and communication skills, especially writing, and be capable of designing and coordinating large projects. Position requires MS/PhD in toxicology or related discipline.
Challenging position for driven, high energy individual to assist colleagues and clients by applying knowledge of environmental toxicology and chemistry to address environmental risks at legacy waste sites and with consumer products. Knowledge of regulatory Ecological Risk Assessment (ERA) frameworks, particularly sediment assessments for persistent organics and metals, and strong database skills required; and project management skills desired. Expertise in statistics, environmental fate modeling, field sampling, human health risk assessment, and population ecology or field biology a plus. Must possess solid technical and communication skills and be capable of designing, writing, and coordinating reports on all size projects. Position requires MS/PhD in environmental sciences or engineering as well as three to five years prior consulting experience, including managing projects with multiple staff.
Seeking motivated, independent thinkers to assist colleagues and clients by applying knowledge of toxicology, human health risk assessment and/or epidemiology. Project work involves interesting science-based evaluations and includes projects such as litigation support, regulatory comment, and site-specific human health risk assessment. Strong communication and organizational skills are required. The position requires an M.S./Ph.D. in toxicology or related field. Knowledge of environmental regulations, statistics, databases, and prior consulting experience are a plus.
Senior Toxicologist/Risk Assessor
Seeking driven, high energy individual to assist colleagues and clients by applying knowledge of toxicology and human health risk assessment. Project work will include litigation support, regulatory comment, product safety assessments, and site-specific human health risk assessment. Position requires M.S./Ph.D. in toxicology, environmental health, or related field. Candidates must have excellent writing and quantitative skills, and the ability to work independently in a challenging and fast-paced work environment. Requires at least two years prior consulting experience, including managing projects with multiple staff. Strong statistical and data management experience are a plus.
Seeking motivated, independent individuals with expertise in environmental engineering, environmental chemistry, and/or the geosciences for challenging technical work. Requires demonstrated experience with fate and transport modeling, highly critical and creative data analysis, development of risk-based remediation strategies, remedy design/oversight, federal/state environmental regulations, and/or environmental forensics. Excellent communication and quantitative skills are required.
Environmental Air Modeling Scientist/Engineer
Excellent opportunity for experienced scientist or engineer with strong air modeling capabilities. Candidates should be proficient with industry standard air models, and be capable of applying them creatively to a wide range of environmental project work: source emission characterization, environmental forensics, air dispersion, multi-media risk assessment, toxic torts, accidental releases, vapor intrusion/indoor air, and air permitting. The ideal candidate will also possess a multi-disciplinary skill set with demonstrated abilities in one or more of the following areas: environmental site assessment, data analysis tools (including statistics), site remediation, and the ability to model chemical fate & transport in other media. Position requires a Masters or Doctorate degree in a relevant engineering or scientific discipline; 2-3+ years consulting experience; working knowledge of industry standard air models such as AERMOD, CALPUFF, MOVES, and AERSCREEN; and an understanding of CAA and other relevant regulations a plus. Candidates must have excellent writing and oral communication skills, as well as exceptional quantitative skills.
Seeking highly skilled and motivated individuals with a background in hydrology/fluid mechanics and modeling the transport of chemicals, sediment, or multiple fluid phases. Successful candidates will have strong programming capabilities and experience with flow/transport modeling in either groundwater, surface water, or atmospheric environments. Preference will be given to individuals with strong problem solving and critical thinking skills, and who know how and when to apply both analytical techniques as well as numerical schemes. Excellent communication skills are required.
Rewarding opportunity for an environmental chemist to provide technical support and critically review, analyze, and interpret laboratory data and provide data quality assurance/quality control (QA/QC) oversight. Knowledge and experience with data validation of both inorganic and organic data is preferred. Must possess solid technical and communication skills and be capable of designing, writing, and coordinating reports on all size projects. Position requires a minimum of a BS or MS in environmental sciences or chemistry. Prior environmental laboratory and/or consulting experience desired.
Certified Industrial Hygienist
Seeking experienced certified industrial hygienist (CIH) to assist in evaluating exposure data and air monitoring results for use in assessing occupational health risks and compliance with standards, assisting clients in setting up occupational monitoring programs, working with labs to ensure high quality sample analysis and reliable results, implementing appropriate statistical analysis of air and other sampling results, and updating and authoring Safety Data Sheets. Project work will include expert testimony and litigation support, regulatory comment, product safety assessments, and exposure assessment. Position requires expertise in conducting industrial hygiene surveys, chemical exposure assessment, and a working knowledge of nanotechnology testing and issues would be a plus. Position requires a minimum of M.S./Ph.D. in Industrial Hygiene or related science field. Candidates must have excellent writing and quantitative skills, and the ability to work independently in a challenging and fast-paced work environment. Requires at least five years prior consulting experience, including managing projects with multiple staff.
Seeking a motivated, independent geologist with a multidisciplinary background in structural geology, rock mechanics, or seismology, with a strong emphasis on the role of fluids in geological processes. Requires demonstrated modeling experience with highly critical and creative data analysis skills. Additional experience with geohazard analysis, induced seismicity, hydraulic fracturing, and/or federal/state environmental regulations is desirable. Excellent communication skills are required. Masters or PhD preferred.
Regulatory Toxicologist/Environmental Scientist
Seeking motivated, independent thinkers to assist colleagues and clients by applying knowledge of environmental regulations, biology, and chemistry. Project work involves interesting science-based evaluations and includes projects that involve litigation support, chemical compliance, and site-specific human health risk assessment. Strong communication, organizational, and quantitative skills are required. The position requires an B.S. /M.S./M.P.H. in toxicology, biology, or related field.
Please send your resume and a cover letter that describes your qualifications to: