Description At Weston Solutions, Inc. you will do meaningful work and make valuable contributions.Employee ownership at Weston is a path to professional growth and access to diverse opportunities in a highly connected community that works together across key service areas to make a difference in the environment. Weston has continued to evolve and adapt to our changing world as a premier provider of environmental and infrastructure services for over sixty years. In both the public and private sectors our teams help identify, solve, mitigate, and manage critical environmental issues to help clients achieve a more sustainable future. WestonSolutions has an immediate need fora leader in emerging contaminants with a primary focus on PFAS. The Principal Engineer/Scientist will serve as a national technical and sales resource with responsibilities including providing senior-level technical support to projects/proposals, serving as a thought leader in their area(s) of specialty through participation in internal and outside organizations (i.e., ITRC, SERDP, etc.), and participating in business development opportunities. Weston has a significant backlog of work involving PFAS and other emerging contaminants (i.e., remedial investigation, feasibility studies, remediation design, and implementation of remedial actions) for both private and federal sector clients and we foresee continued growth in this area. As a leader within Weston, you will share your technical knowledge and view on PFAS, 1,4-dioxane, microplastics, and/or other applicable subjects to our Emerging Contaminants and Remediation Communities of Practice. The successful candidate will have a successful work history in environmental consulting for investigation and remediation projects, and demonstrated experience working on PFAS related projects is required for this position. This position requires excellent written and spoken communication skills including polished client presentation skills, organization, and time management. The successful individual will be one who thrives in a team-oriented environment and has the flexibility to work on a multitude of diverse projects. A positive attitude, willingness to mentor junior staff, and commitment to workplace health and safety are imperative. Limited field work may be required including oversight of subcontractors. Anticipated division of job-related tasks is about an 85/15percent split between office and field work. We are open to filling this position in any of our offices across the United States Knowledge, Skills, & Abilities: Bachelor's degree in engineering, geology,hydrogeology, or applicable sciences.PhD degree preferred. At least 10yearsof demonstrated successful experience in the field of environmental consulting including investigation and remediation of soil, groundwater, sediment, surface water, and/or vapor intrusion. National stature and recognition through participation in national technical organization for PFAS. Experience with investigation and treatment of novel contaminantsrequired including, but not limited to, PFAS and 1,4-dioxaneas well as traditional contaminants like chlorinated solvents, gasoline contaminants, metals, etc. Strong technical acumen of PFAS remediation technologies and investigation/remediation strategiesincludingaddressing source zones/source attribution, mitigating risk pathways, chemical statistics/forensics. Experience designing, overseeing, and/or managing site investigationsutilizing HRSC techniques. Experiencedeveloping and refining conceptual site models anddevelopingcontaminant fate and transport models. Working knowledge of Federal and State regulatory processes and reporting (CERCLA, RCRA, CWA, state specific cleanup programs, etc.). Experience communicating conceptual site models and remedial solutions to clients, regulators,and technical teams. Able to analyze, interpret,and present data,and meet time sensitiv