Senior Technical Lead - Illinois Regulations - TACO

AECOM is seeking an experienced Senior Technical Lead to join our Environmental Remediation practice in the Lisle office. The successful candidate will provide technical leadership for complex site investigation, remediation, and regulatory compliance projects throughout Illinois and the Midwest. This position requires extensive experience with Illinois environmental regulations, particularly the Illinois EPA Site Remediation Program (SRP) and the Tiered Approach to Corrective Action Objectives (TACO) program (35 Ill. Adm. Code 742) . The Senior Technical Lead will serve as a subject matter expert, oversee preparation and review of regulatory deliverables, support business development efforts, mentor junior staff, and provide strategic guidance to project teams and clients. Key Responsibilities Serve as technical lead for environmental investigation and remediation projects involving soil, groundwater, sediment, and vapor impacts. Direct preparation and technical review of reports and submittals prepared under the Illinois EPA Site Remediation Program, including: Comprehensive Site Investigations (CSIs) Remedial Objectives Reports (RORs) Remedial Action Plans (RAPs) Remedial Action Completion Reports (RACRs) No Further Remediation (NFR) documentation Interpret and apply Illinois EPA TACO regulations and remediation objectives. Develop remediation strategies and evaluate remedial technologies for impacted sites. Provide quality assurance and quality control review of technical reports, work plans, and regulatory correspondence. Interface directly with regulatory agencies, including Illinois EPA project managers and reviewers. Support project managers in developing scopes of work, budgets, schedules, and technical approaches. Lead technical discussions with clients and stakeholders. Mentor and train environmental scientists and engineers. Support proposal development and business development activities, including technical approach development and client presentations. Coordinate multidisciplinary teams consisting of engineers, geologists, hydrogeologists, scientists, and subcontractors. Desired Skills Expert knowledge of Illinois TACO regulations and risk-based remediation. Strong understanding of environmental investigation methodologies and remedial technologies. Ability to manage multiple projects and priorities simultaneously. Strong leadership and mentoring capabilities. Exceptional written and verbal communication skills. Commitment to technical excellence, quality, and safety. Minimum Qualifications Bachelor's degree in Environmental Engineering, Civil Engineering, Geology, Environmental Science, or related field AND 10 years of progressively responsible experience in environmental consulting, remediation, and regulatory compliance, including 2 years of leadership experiences and/or a demonstrated equiveillancy of experience and education Successful candidate will have to pass a background check and motor vehicle records check. Preferred Qualifications Demonstrated experience preparing, reviewing, and managing environmental reports submitted to the Illinois EPA under the TACO program. Thorough understanding of Illinois EPA Site Remediation Program requirements and environmental regulations Experience managing complex remediation and environmental compliance projects. Strong technical writing and report review skills. Excellent communication and client-facing skills. Professional Engineer (PE), Professional Geologist (PG), or other relevant professional registration. 15+ years of environmental consulting experience. Established relationships with Illinois EPA personnel and familiarity with agency review processes. Experience supporting Brownfield redevelopment projects. Experience with groundwater modeling, risk assessment, and remedial design. Proven success in technical leadership, staff development, and client management. Experience supporting industrial, manufacturing, petroleum, and commercial redevelopment projects. At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment. 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, flexible work options , well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at . What makes AECOM a great place to work You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity. As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines. 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 over 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.