Senior Ecological Risk Assessor


SRC, Inc. is currently seeking an experienced M.S. or Ph.D. ecological risk assessor. The position may be filled by work from home or located in one of several possible office locations (Denver, CO; Scarborough, ME; Syracuse, NY; Arlington, VA). This scientist will lead and participate in reviewing data and contributing to the writing of risk assessmentshazard characterizations in our Environmental Health Analysis business area. This is an office-based, non-laboratory position that will support various programs for the United States Environmental Protection Agency. This is a unique opportunity to join a dynamic and successful organization, continuing to build on SRC’s reputation as an important contributor in our nation’s efforts to respond to emergencies and to protect our people and environment.  SRC has been named on the 2018 list of Best Places to Work in New York and Virginia and is committed to providing a positive, supportive, and healthy work environment.




  • Work closely with senior EPA scientists and project managers to design and implement ecological risk assessment (ERA) projects for Superfund and related hazardous waste sites throughout the U.S.
  • Provide senior-level review of ecological risk assessment or other site-related documents prepared by potentially responsible parties (PRPs) and their contractors with respect to scientific validity and compliance with Agencyguidance.
  • Review, critically evaluate, and summarize studies describing the effects of chemicals on ecological receptors
  • Work closely with SRC toxicologists and statisticians to develop and implement approaches for evidence integration and to design ecological studies to fill data gaps
  • Develop new ecological risk assessment tools or guidance
  • Develop, write and review risk assessments and chemical hazard characterization reports
  • Develop or review sampling plans to collect environmental data to support ecological risk assessments
  • Research cross-cutting issues related to EPA site risk assessments
  • Work with multidisciplinary project teams to address complex research needs
  • Mentor and cross-train other SRC scientists in ERA
  • Interact closely with SRC's clients as technical expert and/or ERA project manager


Position Requirements:

  • Master’s or Ph.D. degree in ecology, toxicology, biology or closely related field with 10+ years of relevant work experience (CERCLA site ecological risk assessment experience)
  • Demonstrated technical writing and oral communication skills; experience presenting technical information to scientific audiences
  • Experience with design and interpretation of freshwater and marine sediment ecological toxicity assessments (acute and chronic)
  • Experience with design and interpretation of terrestrial ecological toxicity assessments
  • Demonstrated working knowledge and application of MSExcel and statistical software (e.g., SAS, R).
  • Applicants are required to submit a cover letter, resume, and at least one writing sample.  These files should be uploaded to SRC’s website during the application process.
  • Must be a U.S. Citizen.  Applicants selected will be subject to a background verification and drug screen

President Biden’s Executive Order 14042, requires Federal contractors and subcontractors to be fully vaccinated for COVID-19 by January 4, 2022. This requirement applies to all SRC, Inc. and SRCTec, LLC employees and its subcontractors.

  • Location Arlington, Virginia Denver, Colorado
  • Employment Type Full-Time Hourly
  • Experience Required 10+ Years
  • Education Required Masters Degree
  • Security Clearance Requirement Must meet eligibility requirements
  • Travel % 10