Principal Toxicologist (Ph.D.)
$200k - $300kExponent
About Exponent Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most profoundly unique, unprecedented, and urgent challenges. We are committed to engaging multidisciplinary teams of science, engineering, and regulatory experts to empower our clients with solutions that create a safer, healthier, more sustainable world. For over five decades, we've connected the lessons of past failures with tomorrow's solutions to advise clients as they innovate technologically complex products and processes, ensure the safety and health of their users, and address the challenges of sustainability. Join our team of experts with degrees from top programs at over 500 universities and extensive experience spanning a variety of industries. At Exponent, you’ll contribute to the diverse pool of ideas, talents, backgrounds, and experiences that drive our collaborative teamwork and breakthrough insights. Plus, we help you grow your career through collaboration, our rich client network, and our excellent support staff. Thanks for your interest in joining our team! Key statistics: 950+ Consultants 640+ Ph.D.s 90+ Disciplines 30+ Offices globally Our Opportunity We are currently seeking an experienced consultant for a Principal Toxicologist position in our Health Sciences Practice. This position is open to all U.S. office locations. In this role, you will work as part of a team to provide a high level of leadership and collaboration on projects related to litigation support, toxicological evaluations, risk assessment, and risk communication involving a wide range of products and chemicals. This includes evaluating health hazards, mechanisms of action, dose response, exposure levels, and conducting comparative risk research, utilizing data science tools, assisting with regulatory documents and analyses, and conducting risk assessments under a variety of regulatory and legal paradigms. As a Principal Toxicologist, you will lead projects, identify new clients, expand relationships with existing clients, develop technical staff, and develop new business in related Health Sciences areas, particularly in the areas of product stewardship, toxic tort, and emerging chemicals of concern. You will be instrumental in helping our clients make and support data-driven and scientifically sound decisions to address today's most pressing issues impacting human health safety. You will be responsible for Leveraging deep knowledge in toxicology to address a wide range of complex human health challenges across diverse client sectors, delivering scientifically rigorous and impactful solutions Identifying, pursuing, and securing new client engagements by understanding emerging needs and building long-term partnerships. Maintaining and growing trusted relationships with existing clients by consistently delivering high-quality work, anticipating future needs, and serving as a strategic advisor. Building, managing, and empowering multidisciplinary teams, fostering a collaborative and inclusive environment that values diverse perspectives and scientific integrity. Providing guidance, coaching, and professional development opportunities to technical staff, supporting their growth into future leaders and experts. Ensuring successful project execution through effective planning, resource allocation, and budget management, while maintaining high standards of quality and timeliness. Offer high-level scientific and strategic advice to both internal stakeholders and external clients, contributing to the firm’s thought leadership and client impact. Enhance the firm’s visibility and credibility by publishing in peer-reviewed journals, presenting at industry conferences, leading seminars, and participating in expert advisory or technical committees. You will have the following skills and qualifications PhD in Toxicology or a related scientific field Minimum of 8 years of consulting experience in the toxicology space Proven track record of business generation and attracting new and repeat clients or funding Diplomate of the American Board of Toxicology (DABT) Exceptional verbal and written communication skills, with the ability to articulate complex ideas clearly and persuasively to diverse audiences Strong analytical and problem-solving skills, with the ability to interpret data, identify trends, and make informed recommendations in your scientific field Outstanding reputation among clients and the scientific community for integrity, responsiveness, and technical expertise Adept people management abilities coupled with extensive experience in successfully overseeing and executing complex projects Strong commitment to professional development Applicants are encouraged to submit a CV (Curriculum Vitae) with publications (feel free to include publications that are in review or pending) [not restricted to 1 page]. Life @ Exponent To learn more about life at Exponent and our impact, please visit the following links: Attracting, inspiring, developing, and rewarding exceptional people with diverse backgrounds and expertise are central to our corporate culture. Our diverse team allows us to provide better value to our clients and enjoy an enriched work environment. Our firm is committed to offering a variety of programs and resources to support health and well-being. We believe that providing competitive benefits as well as compensation and recognition programs empowers our staff to do work that makes a difference. Work Environment At Exponent, we have found that in-person interactions deepen employee engagement and are crucial for development, for realizing the full potential of our talented and diverse teams, and for building a more inclusive workplace where all have a sense of belonging. In our offices, you can expect a supportive culture and a collaborative, dynamic, multi-disciplinary work environment. Our consultants engage in-person in the office unless they are traveling for client work or other business activities. We value the rich lives our colleagues enjoy outside of work and understand that work/life balance is critical to our employees and their well-being. Consultants have the autonomy to balance their work and personal schedules so you can meet with clients, visit inspection sites, attend conferences, and make time for priorities outside of work, too. It is this flexible, agile work style and working hours that allow our teams to drive innovation and results in their own ways, while meeting the needs of clients. #LI-Onsite Compensation Our consultants are rewarded for their technical and business contributions and have an opportunity to plan for future success and career growth. Exponent's total compensation plan is consistent with its expectations of the quality and quantity of work performed and with the professional standards set by Exponent. At the Manager level and above, total compensation includes base salary, annual bonus, and 401(k) employer contribution of 7% of base salary.The base salary range for this position is depending on experience and capabilities which will be assessed during the interview process. Salary Range USD $200,000.00 - USD $300,000.00 /Yr. Benefits you will enjoy Access benefits information on our View email address on click.appcast.io page: Exponent is a proud equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, veteran status, disability, sexual orientation, gender identity, or any other protected status. If you need assistance or accommodation due to a disability, you may email us at View email address on click.appcast.io. Job Locations US-CA-OaklandUS-Washington, DCUS-CA-IrvineUS-CO-DenverUS-NY-New YorkUS-TX-AustinUS-MA-NatickUS-CA-OaklandUS-CA-Menlo ParkUS-WA-BellevueUS-WA-Seattle... Job SummaryLocation: US-CA-OaklandPractice: Health SciencesPosition Type: Full-timePosted Salary Range: USD $200,000.00 - USD $300,000.00 /Yr.
- ...Prellis Bio in Berkeley, CA seeks a Senior/Principal Scientist — Antibody Protein Engineering to drive late-stage antibody design and optimization. You will mature hits into development-ready leads while building an integrated wet-lab and computational engineering platform...Principal
$71.25k - $187k
...cellular and molecular biology who shares our passion to help patients live with higher quality of life. You will report to a senior Ph.D. scientist in the group and work in a highly team‑oriented and collaborative environment. Your focus will be to independently design...PrincipalFull timeH1bWorldwideFlexible hours- National Audubon Society is seeking a Senior Director, Leadership Giving to lead a hemispheric major gifts program from Oakland, CA. You will partner with senior leadership to grow unrestricted and strategic gifts, guiding a team of frontline fundraisers and coordinating...Principal
$180k - $250k
...minimum of 8 years’ experience managing client relationships and project teams in a consulting environment. Candidates should also have a Ph.D. or ABD in economics, finance, or accounting or a closely allied field, and will have specific expertise in the fields of...PrincipalWork at officeLocal areaWork from homeWorldwide3 days per week- Join Cardno’s Science and Environment team in one of our 10 ChemRisk office locations to play an integral role in providing state-of-the-art toxicology services to organizations that confront public health, occupational health, and environmental challenges.Job Description...SuggestedFull timeInternshipWork at office
- ...build intelligent products that create “intelligence at scale.” Reporting to the Director, AI & Machine Learning, the Data Scientist, Principal will lead the development and deployment of novel applications that leverage generative AI models. This role focuses on rapidly...Principal
- Job Description: Ninyo & Moore has an immediate opening for a Principal Engineering Geologist in our San Jose or Alameda, CA office. The successful candidate will perform the following activities: a) Prepare and review geologic maps and cross sections, conduct geologic...PrincipalContract workWork at officeImmediate start
$170k - $277k
...Identify performance bottlenecks and continuously implement improvements.Qualifications Required QualificationsBachelor’s, Master’s, or Ph.D. in Computer Science or related technical field, or equivalent practical/military experience12+ years of professional software...PrincipalFull timeWork at office- Position Type: Administration/Assistant Principal Date Posted: 7/29/2026 Location: Central Regional High School Date Available: 09/01/2026 Closing Date: 08/13/2026 POSITION AVAILABLE VACANCY: Assistant High School Principal QUALIFICATIONS: Must hold Masters Degree...PrincipalContract work
- ...A Catholic school in California is seeking a dedicated and visionary Principal to lead and enhance the educational environment. The successful candidate will be responsible for providing overall leadership, ensuring quality in academic and student affairs, and overseeing...Principal
$169.5k - $239.5k
...expanding its Antibody-Drug Conjugate (ADC) platform to advance a growing pipeline of oncology bioconjugates. We are seeking a Senior Principal Scientist with deep expertise in conjugation chemistry to serve as the technical anchor for ADC generation, from discovery-scale...PrincipalFull timeWork at officeLocal areaFlexible hours$84.1k - $154.7k
The University of California - Riverside is looking for a Principal Contracts and Grants Officer to provide institutional-level sponsored programs administration for various departments. This remote position involves reviewing complex proposals and awards, negotiating agreements...PrincipalRemote job$144k - $194k
...Job Title: IT Program Manager, Principal Job ID: 26-01523 Location: Oakland, CA (Hybrid) Job Type: Full-Time / Direct Hire Job Summary: Seeking a Principal IT Program Manager to lead large-scale, complex technology programs. This role requires...PrincipalFull time- ...Selected candidate may sit in Oakland, CA, Pleasanton, CA, Pasadena, CA or Atlanta, GA***Technical Job Summary: The Talent Strategy Principal Consultant will lead strategy execution and manage multiple workstreams by identifying client and operational needs, including:...PrincipalWork experience placement
$170k - $277k
...environment.Job SummaryThe Layer 7 security team is seeking a Senior Principal Software Engineer to lead the design and development of next-... ...Required QualificationsBachelor’s, Master’s, or Ph.D. in Computer Science or related technical field, or equivalent...PrincipalFull timeWork at officeWorldwide- ...Technology Corporation America (NTCA) is seeking an experienced Principal Architect to lead the definition and evolution of next‑generation... ...Master's degree with 10+ years of industry experience, or Ph.D. with 5+ years of relevant experience in Electrical Engineering...Principal
$84.1k - $154.7k
The University of California - Riverside is seeking a Principal Grant Finance Administrator to manage the financial and administrative aspects of grants and contracts for various Principal Investigators. This role involves critical oversight in proposal preparations and...PrincipalRemote job$71.25k - $187k
...cellular reprogramming, CAR-T applications, and the immune-stromal interactions that sustain chronic inflammation. We are hiring a Principal Biologist to serve as a hands-on technical driver of this work, executing experiments on programs designed by the project lead,...PrincipalFlexible hours$71.25k - $187k
...patients, we invite you to join us. JOB DESCRIPTIONPosition: Senior/Principal Scientist, Discovery Oncology (in vivo Biology)Location: South... ...discipline with 5-8 years of relevant lab-based experience. A Ph.D. is not considered for this role.Qualified applicants must be...PrincipalFull timeH1bVisa sponsorshipWork visaFlexible hours$251.84k - $314.79k
From Fivetran’s founding until now, our mission has remained the same: to make access to data as simple and reliable as electricity. With Fivetran, customer data arrives in their warehouses, canonical and ready to query, with no engineering or maintenance required. We’re...PrincipalFull timeWork at officeRemote workFlexible hours- ...audits and advisory services to provide assurance on specific internal control objectives and emerging risk areas. The Internal Audit Principal will report to the Internal Audit Senior Director. In this role, you will be leading and managing financial, operational, and...PrincipalWork at office2 days per week
- A regional educational organization in California is seeking an experienced Principal starting July 1, 2026. The Principal will lead academic and student affairs, oversee administrative operations, and serve as a role model in a faith-based educational environment. The...Principal
$150k - $200k
...Principal Product Manager As part of the Product team, you'll have the unique opportunity to shape scaling access to mental healthcare through sound. Working directly with the leadership teams across Sales, Marketing, Design, R&D, Engineering, Customer Success, and...Principal- The school seeks a new Principal, effective July 1, 2026, who will support this recent growth. The Principal reports to the Pastor of St. Joseph Basilica Parish and serves on the school’s Board of Limited Jurisdiction within the Diocese of Oakland. Providing overall leadership...Principal
$144 per hour
...Requisition ID# 173497 Job Category: Government and Regulatory Relations Job Level: Manager/Principal Business Unit: Energy Delivery Work Type: Hybrid Job Location: Oakland Department Overview The Undergrounding and System Hardening Program helps reduce wildfire risk by...PrincipalWork experience placement$84.1k - $154.7k
Principal Contracts and Grants Officer (PCGO) The Principal Contracts and Grants Officer (PCGO) is responsible for providing institutional-level sponsored programs administration services to a portfolio of academic departments and research units, including acting as an...PrincipalLocal areaRemote workWork visa- A local educational institution is seeking a new Principal to provide overall leadership and vision, starting July 1, 2026. This role requires overseeing academic programs and integrating faith with learning. The successful candidate will engage with the community, ensure...PrincipalLocal area
$128k - $218k
...Job Title: Supply Chain Management Data Lead (Systems Analyst, Principal) Job ID: 26-02826 Location: Oakland, CA (Hybrid) Duration: FTE Job Summary Seeking an experienced Supply Chain Management Data Lead to drive data governance, migration, and...Principal$130.7k - $261.3k
Job ID: 31153362Posted: Posted 30+ Days AgoStart Date: 2026-06-15Location: United States - California - Alameda, United States of AmericaTime Type: Full timeAbbott is a global healthcare leader that helps people live more fully at all stages of life. Our portfolio of life...PrincipalShift work$114k - $228k
...devices, nutritionals and branded generic medicines. Our 115,000 colleagues serve people in more than 160 countries. JOB DESCRIPTION: Principal Quality Engineer Working at Abbott At Abbott, you can do work that matters, grow, and learn, care for yourself and your family,...PrincipalFull timeWork experience placementWorldwideShift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Principal Toxicologist (Ph.D.). Be the first to apply!


