Remote Senior Toxicologist: Hazard & Risk Lead

ICF Olson; United States; Remote; USD 81,000 - 139,000; Full time

Job summary

ICF is seeking a Senior Toxicologist to join its Health Science Portfolio and drive toxicology and risk assessment efforts for environmental pollutants. The role emphasizes leadership in integrating molecular biology, NAMs data, and MOA/AOP concepts across projects, including hazard identification and weight‑of‑evidence analyses.

The successful candidate will work with federal agencies and cross-functional teams, manage multiple studies, and mentor junior staff while contributing to high‑impact

Qualifications

• Ph.D. with 5+ years of experience in toxicology, pharmacology, environmental science, or related field.
• Master’s with 10+ years of experience in toxicology, pharmacology, environmental science, or related field.
• Strong working knowledge of mechanistic toxicology and molecular biology.
• Experience integrating mechanistic, animal, and human evidence into a weight-of-evidence evaluation.
• Experience with MOA and adverse outcome pathway (MOA and AOP) concepts, frameworks, and analyses.
• Experience evaluating molecular, cellular, and mechanistic data including transcriptomics, proteomics, metabolomics, and high-throughput screening assays.
• Experience with NAMs, molecular biology techniques, and mechanistic data for regulatory decision‑making.
• Experience with systematic literature review.
• Strong quantitative skills with dose‑response analysis, benchmark dose modeling, pathway enrichment analyses, or similar modeling experience.
• Strong written and oral communication skills.
• Proactive problem-solving approach and ability to prioritize in fast-paced environments.
• Experience with government programs and staff leadership.

Responsibilities

• Project management and technical leadership on multiple toxicology projects.
• Assist in defining project scope and serve as primary client contact.
• Toxicological report development, including methods, results, and discussion sections.
• Draft protocols, toxicological reports, manuscripts, and proposals.
• Collaborate with multidisciplinary teams to address complex questions.
• Toxicology systematic review tasks including literature screening and data extraction.
• Supervise, mentor, and train junior- and mid-level staff.

Skills

Mechanistic toxicology

Molecular biology

MOA/AOP concepts

Transcriptomics

Dose-response analysis

Data synthesis

Project management

Leadership

Education

Ph.D. in toxicology, pharmacology, environmental science, or related subject

Master’s degree in toxicology, pharmacology, environmental science, or related subject

Job description

ICF is seeking a Senior Toxicologist to join its Health Science Portfolio and drive toxicology and risk assessment efforts for environmental pollutants. The role emphasizes leadership in integrating molecular biology, NAMs data, and MOA/AOP concepts across projects, including hazard identification and weight‑of‑evidence analyses.

The successful candidate will work with federal agencies and cross-functional teams, manage multiple studies, and mentor junior staff while contributing to high‑impact