Principal – Environmental Remediation Engineer
Geosyntec Consultants
Portland, OR · Posted October 20, 2026
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About the job
Overview
Do you want to build an impactful career to change the world for the better?
Geosyntec Consultants, an earth science and engineering consulting firm, is seeking a Principal Environmental Remediation Engineer to join our growing Environmental Practice in our Portland, OR office.
Our Environmental Practice tackles challenges on a variety of complex environmental projects throughout the Pacific Northwest including environmental site assessments, remedial investigations/feasibility studies, property cleanup and urban redevelopments, remedial design engineering, cost recovery/allocation/mediation support, and landfill system monitoring and optimization.
In this role, you can expect an abundance of variety in your work. Consistent with our Sell, Manage, Do, business model, you will have the opportunity to lead in the delivery of technical project work, be involved in leadership and mentorship initiatives, as well as contribute to key sales and business development efforts. You will actively develop your own practice through effective project delivery and client development, while actively contributing to the success of Geosyntec as a whole.
As a Principal Environmental Remediation Engineer at Geosyntec, your technical project work will primarily focus on environmental investigation and remediation projects where you will lead the development and implementation of environmental due diligence, remedial investigations, and cleanup actions on known or suspected contaminated sites.
Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical, and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.
We invest in our people. Each employee is unique, and your career at Geosyntec will be too. We offer competitive pay and benefits, and well-being programs to support you and your family.
To Learn More Visit: http://www.geosyntec.com/careers/.
Essential Duties and Responsibilities
Collaboration and mentoring are cornerstones of Geosyntec’s culture. We operate under a Sell, Manage, Do culture, and so we expect that you’d work on challenging technical projects while leveraging your existing knowledge and experience to help Geosyntec expand its current practices and capabilities through business development and client management. You may also be asked to take on project management responsibilities, along with staff management, development, and mentoring. Some of the key responsibilities may include:
Managing and directing challenging technical projects through task and project management, including planning and implementing investigation and remediation projects, budgeting and budget management, adherence to schedule, quality, client satisfaction, and profitability;
Evaluation of contaminated sites and development remediation approaches, including feasibility studies, cleanup action plans, engineering design reports, remediation design plans;
Leading the development of work plans, data evaluation, and cost-benefit analyses;
Implementation of remedial pilot tests and systems, including vendor selection, logistical coordination, permitting, and supervision of field teams;
Mentoring, guiding, and motivating early career staff assigned in the areas of project performance, cost, schedule management, client expectations and career development;
Working with and leading multidisciplinary teams, including data scientists, geologists, risk assessors, CAD designers, and modelers;
Preparing and reviewing technical reports, letters, memoranda, plans, specifications, and proposals;
At times, this position may also include fieldwork including site visits, multi-media environmental sampling and characterization, drilling oversight, contractor oversight, and remediation system operations, maintenance, and construction.
Building a portfolio of clients by obtaining repeat business from existing clients and winning new clients;
Fostering trust-based relationships with clients, regulatory personnel, and other project stakeholders;
Drive personal, company, and rental vehicles to client or company project or office sites, and other business locations, as needed.
Education and Licensure
Bachelor’s degree in environmental engineering, or related engineering discipline. (required)
Master’s degree in environmental engineering, or related engineering discipline. (preferred)
Licensure as a Professional Engineer (PE). (required)
Skills, Experience and Qualifications
At least 10 years of related experience (15+ preferred); or equivalent combination of education and experience. (required)
Relevant coursework or experience in contaminant fate and transport. (required)
Knowledge of state and federal cleanup laws, regulations, and regulatory guidance for cleanup of contaminated sites.
Strong quantitative and analytical skills. (required)
Clear and professional writing and verbal communication skills.
Excellent client management skills.
Ability to work on teams and interface with clients, attorneys, and regulators to execute projects. (required)
Valid U.S. driver’s license and a satisfactory driving record for business travel. (required)
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