Senior Environmental Scientist/Geologist - 6 years minimum experience

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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.

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AECOM has an opening for an experienced geologist or environmental scientist in our Chelmsford, MA office to assist with a variety of projects including data management, site investigations and remediation. The successful candidate will assist with gathering and analyzing geological, hydrogeological and geochemical data in both the field and office settings. The field activities will consist of soil, groundwater, surface water, sediment, air and soil vapor sample collection, geological logging and interpretation, and the oversight of subcontractors including laboratories and excavation and drilling companies. The office activities will involve preparation of investigation reports and providing support to junior to mid-level staff on projects. Will involve task managing one or more persons on field activities and supporting project managers to help accomplish tasks. 

Specific responsibilities include:

• Support a wide range of environmental investigation and remediation projects under CERCLA, RCRA, and State jurisdictions.
• Contribute directly to the preparation and review of technical project deliverables (e.g., work plans, remedial investigations, and Phase II Environmental Site Assessments).
• Conduct soil, groundwater, and vapor intrusion sampling.
• Contribute on projects regarding technical approach, numerical analysis, cost estimation, planning, design, scheduling, quality control, and safety.
• Job duties will involve both field work and office assignments with occasional overnight travel required.
• Developing clear and defensible CSMs for complex sites.
• Conducts research and does investigation work as required.
• Plans and organizes project studies.
• Assists in the resolution of conflicting technical information and unsuitability of standard procedures.
• Understanding of CERCLA, RCRA, state regulations, and waste management requirements.
• Developing UFP QAPP and other Federal project documents.
• Evaluating complex environmental data sets, including the use of modeling and statistics.
• Preparing, work plans, and technical reports, and presentations for technical meetings with clients and regulators.
• Performs complex assignments often requiring the development of unique solutions to problems.
• Actively communicating with the technical team and Project Manager.
• May oversee the work of less experienced scientists.

Minimum Requirements

• Bachelor’s degree in environmental science, geology, or a related field, along with a minimum of 6 years of experience, or demonstrated equivalency in experience and/or education.
• Valid Driver's license.
• Must be a US citizen or permanent resident
• Ability to travel up to 20% to various job sites within US.
• Employee is required to relocate to the City, state area, if not local already 

Preferred Qualifications

• Experience and knowledge of State and Federal regulations.
• Experience and knowledge on Oil &Gas and/or retail sites.
• Experience with developing conceptual site models (CSM) and preparing remediation strategies.
• Experience completing contaminant fate and transport evaluation.
• Experience conducting risk assessments is a plus.
• Knowledge of vapor intrusion sampling methods and CSM development.
• Experience developing and preparing reports for submittal and acceptance for technical clients and regulators.
• Demonstrated ability to collaborate with clients and project team.
• Computer proficient in MS Office programs.
• Ability to write and review complex technical documents, perform high level review and strategy.
• Ability to prepare graphics and reports that present complex technical matter in a clear and concise manner.
• Computer proficient in a variety of statistical programs helpful. 
• Master’s degree preferred.
• Strong team worker, flexible.
• Attention to detail and a thorough approach to work.
• Ability to multitask and have strong communication skills.
• Organized and able to work within a team of technical experts.
• Able to work well in a team setting.
• Develop cost estimates associated with field related activities.
• Learn and develop a keen understanding of hazard recognition.
• 8 plus years of experience total in role/industry 

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 2024. Learn more at aecom.com. 

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.