Senior Principal

Senior Principal
Virtual, United States | req2028

Find your path and enjoy the journey at Haley & Aldrich. With us, you’ll tackle clients’ most meaningful challenges in the built and natural environments – and, in turn, build stronger communities. You’ll work with teams of passionate colleagues, driven by a commitment to technical excellence and continuous learning.

As a company, we aim to build a world where communities go beyond resilience, embracing change as an opportunity to enhance safety, well-being, and quality of life. Join us to accelerate this vision and your professional development.

We are looking to add new talent to our growing team! We are currently seeking a Senior Principal (Toxicologist) to work in a technical support role with highly skilled professionals on diverse project teams in a dynamic environment. This is an excellent opportunity to join a growing group and company and get involved in a variety of projects for a diverse range of clients. This is a temporary/on-call consultant position located remotely in Florida.

This position will provide expert technical support for environmental due diligence, assessment, and remediation of real estate market projects in Florida. The consultant will serve as a subject matter expert on site investigation strategy, regulatory compliance, and risk-based remediation, specifically interpreting and applying Florida Administrative Code Chapter 62-780 (Contaminated Site Cleanup Criteria). The successful candidate will collaborate directly with client and internal project managers on an as-needed basis, offering strategic guidance, senior technical review, and clear client communications. Advanced expertise in risk assessment and probabilistic modeling is required. The consultant may be requested to participate in meetings with clients, regulators, and project partners, and deliver high-level review and guidance to ensure effective and compliant project completion.

DUTIES/RESPONSIBILITIES
In this position, you will:

• Provide senior technical advisory support for due diligence, site assessment, and remediation projects, primarily focused on Florida real estate transactions and developments.
• Interpret and apply the regulatory requirements of F.A.C. Chapter 62-780 to site investigations, risk assessments, and remediation strategies for contaminated sites.
• Conduct advanced risk assessment and probabilistic modeling relating to contaminated site cleanup and redevelopment.
• Communicate directly with clients and internal project managers, providing clear technical advice and status updates as project needs arise.
• Review and provide quality assurance guidance on technical deliverables to ensure effectiveness and compliance with relevant regulations.
• Advise on the preparation of documentation for regulatory submittals, agency correspondence, and project communications as needed.

SKILLS/EXPERIENCE
Minimum Skills and Requirements:

• Bachelor’s or advanced degree in toxicology, environmental science, or a related discipline.
• Minimum of 25 years’ relevant professional experience providing consulting on environmental due diligence, contaminated site assessment, and remediation, including Florida projects.
• Demonstrated expertise interpreting Florida Administrative Code Chapter 62-780 (Contaminated Site Cleanup Criteria).
• Advanced experience in risk assessment and probabilistic modeling in support of regulatory compliance and site remediation.
• Superior written and verbal communication skills; able to provide clear and concise technical guidance to both clients and multi-disciplinary teams.
• Self-directed, highly collaborative, and able to work on an as-needed/on-call basis with minimal supervision.
• High professional standards for client service and technical work quality.

About Haley & Aldrich

Haley & Aldrich is committed to solving our clients’ most meaningful challenges in the built and natural environments. Our team of 1,000+ engineers and scientists across the United States draws inspiration from one mission: to work closely with clients as they navigate change to create safer, more robust places to live and work. Since our founding in 1957, organizations across the public and private sectors have relied on us for technical excellence and empathetic leadership that achieve results and secure a thriving tomorrow. Find us at haleyaldrich.com and LinkedIn.

Haley & Aldrich is an equal opportunity employer. All qualified applications will receive consideration for employment without regard to gender, race, age, disability, veteran, or any other legally protected status. We offer excellent career growth, a highly competitive total compensation plan, and a solid benefits package. Interested candidates should apply on our Careers page.

Note to external search firms: Haley & Aldrich does not accept unsolicited resumes and will not be obligated to pay a placement fee for unsolicited resumes. Please do not send resumes to Haley & Aldrich employees. Please work through a Talent Acquisition Manager.

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ACCOMMODATIONS FOR APPLICANTS WITH DISABILITIES AND LIMITED ENGLISH PROFICIENCY Haley & Aldrich, an equal opportunity employer committed to a diverse workforce. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Veterans´ Readjustment Act of 1974, Title I of the Americans with Disabilities Act of 1990 and pursuant to Executive Order 13166, applicants with disabilities or limited English proficiency that require accommodation in the job application process may contact 1-617-886-7400 for assistance.



Equal employment opportunity, including veterans and individuals with disabilities.

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