**Company Description** **Work with Us. Change the World.** At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of nearly 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. We're one global team driven by our common purpose to deliver a better world. Join us. **Job Description** AECOM is seeking a **Senior Sediment Environmental Scientist** with **15+ years of experience** in sediment remediation, environmental science, and contaminated site management. This leadership position is ideal for a highly experienced environmental scientist who excels in managing complex sediment remediation projects, developing innovative solutions, and mentoring teams. The ideal candidate will have deep expertise in sediment site assessments, remedial design, and implementation under **CERCLA** (Comprehensive Environmental Response, Compensation, and Liability Act) regulations. This role requires a proven ability to drive high-level technical decisions, manage large-scale projects, and interact with clients and regulatory agencies at the highest levels. As a Senior Sediment Environmental Scientist, you will take on a leadership role in managing and directing sediment remediation projects from concept through to post-remediation monitoring. You will be responsible for the strategic direction, technical quality, and regulatory compliance of multiple projects while mentoring junior and mid-level staff. Your role will involve working closely with senior management, clients, and stakeholders to ensure projects are delivered on time, within budget, and in full compliance with environmental regulations. We are open to having the candidate work from any location within the US Mainland. And we are also flexible to part time roles along with full time roles as well. Some of the Key Responsibilities will be: + **Leadership in Sediment Site Investigations & Characterization:** Lead complex sediment site assessments, environmental investigations, and contaminant assessments in aquatic and terrestrial environments. Provide technical direction on sampling plans, data collection methods, and analysis of sediment, water, and biota to evaluate the extent of contamination and associated risks. + **Strategic Remedial Design & Technology Leadership:** Develop, oversee, and guide the design of advanced sediment remediation strategies for challenging sites, including dredging, capping, in-situ treatment, and ecological restoration. Lead the preparation of **Remedial Investigation/Feasibility Studies (RI/FS)** , **Remedial Action Plans (RAPs)** , and **Risk Assessments** tailored to site-specific conditions. + **Regulatory Oversight & Compliance Management:** Ensure compliance with federal, state, and local environmental regulations, including **CERCLA** , **RCRA** , and other applicable environmental laws. Lead regulatory negotiations, prepare high-level reports for regulatory agencies, and manage the permit and approval processes for complex remediation projects. + **Project Management & Oversight:** Take full responsibility for managing multiple sediment remediation projects, including overseeing scope, schedule, budget, and resource allocation. Ensure that projects meet client expectations, regulatory requirements, and company quality standards. Lead project teams, monitor progress, and adjust plans to resolve issues that arise during project execution. + **Business Development & Client Growth:** Build and nurture strong relationships with potential clients, regulatory agencies, and industry stakeholders to expand the company's client base. Lead proposal development, including writing technical sections, cost estimates, and coordinating multidisciplinary teams to submit competitive bids for new projects. Assist senior leadership in developing strategies for market expansion, identifying emerging trends, and fostering long-term partnerships to support business growth. + **Client & Stakeholder Management:** Serve as the primary technical and strategic contact for clients, maintaining and building relationships with key stakeholders. Regularly provide high-level project updates, address technical challenges, and guide clients through decision-making processes. Ensure the timely delivery of reports, presentations, and other client-facing deliverables. + **Health & Safety Oversight:** Oversee the development and implementation of Health and Safety Plans (HASPs) for field projects, ensuring that all site activities are conducted safely and in compliance with applicable health and safety regulations. Promote a culture of safety within the team and on-site. + **Post-Remediation Monitoring & Long-Term Site Management:** Lead post-remediation monitoring efforts to assess the effectiveness of remedial actions. Ensure that monitoring programs are designed to track site recovery and compliance with remedial objectives. Oversee the preparation of post-remediation reports and long-term stewardship plans. + **Team Leadership & Staff Development:** Mentor and develop junior and mid-level staff, providing technical guidance, project oversight, and career development support. Encourage knowledge-sharing and foster an environment of continuous improvement and innovation within the team. + **Innovation & Technical Excellence:** Drive innovation in sediment remediation practices, evaluating new technologies and approaches to improve remediation outcomes. Participate in industry conferences, publish technical papers, and stay current on emerging trends in environmental science and remediation technologies. **Qualifications** + **Experience:** + **15+ years of experience** in sediment remediation, environmental science, or a closely related field. + Significant experience with **CERCLA** (Comprehensive Environmental Response, Compensation, and Liability Act) and other environmental regulatory frameworks. + Proven ability to lead large, complex sediment remediation projects and manage multi-disciplinary teams. + **Education:** + Master’s degree or higher in Environmental Science, Environmental Engineering, Geology, or a related field. + Relevant certifications (e.g., **Certified Environmental Professional (CEP)** , **Professional Geologist (PG)** , or **Professional Engineer (PE)** ) are a plus. + **Technical Expertise:** + Deep expertise in sediment site assessments, environmental risk assessments, and the design of advanced sediment remediation technologies (e.g., dredging, capping, in-situ treatments, and ecological restoration). + Strong knowledge of sediment contamination issues, including organic and inorganic pollutants (e.g., PCBs, PAHs, metals, pesticides, etc.), and the associated environmental risks. + Proficiency in using environmental modeling tools (e.g., GIS, fate and transport modeling) and data management software. + **Leadership & Project Management Skills:** + Demonstrated success in managing large-scale projects, including budget oversight, schedule management, and resource allocation. + Strong leadership skills, with experience directing and mentoring teams, managing client relationships, and ensuring high-quality project outcomes. + Ability to develop and maintain productive relationships with clients, regulatory agencies, and internal teams. + **Communication Skills:** + Exceptional verbal and written communication skills, with the ability to present complex technical information clearly to clients, regulators, and non-technical stakeholders. + Experience preparing high-level reports, regulatory submissions, and presentations. + Ability to guide clients through challenging technical and regulatory decisions. + **Certifications (Preferred):** + **HAZWOPER** (40-hour) certification or similar health and safety training. + **Certified Environmental Professional (CEP)** or other advanced certifications in environmental science or engineering. + **Professional Engineer (PE)** or **Professional Geologist (PG)** is highly desirable. **Additional Information** All your information will be kept confidential according to EEO guidelines. Offered compensation will be based on location and individual qualifications. The expected range is $105,000.00 - $150,000.00. **About AECOM** AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $14.4 billion in fiscal year 2023. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM. **Freedom to Grow in a World of Opportunity** You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed. You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients. AECOM provides a wide array of compensation, benefits and well-being programs to meet the diverse needs of our employees and their families. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too. Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours. All your information will be kept confidential according to EEO guidelines. **ReqID:** REF41587V **Business Line:** Environment **Business Group:** DCS **Strategic Business Unit:** West **Career Area:** Science **Work Location Model:** Remote **Legal Entity:** AECOM Technical Services Inc