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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.

AECOM is seeking a Geologist/Environmental Scientist in our Billings, Montana office to assist with a variety of tasks on projects including data management, site investigation, and remediation.

The successful candidate will assist with gathering and analyzing geological, hydrogeological, and geochemical data in both the field and office settings.

This position is expected to begin in January 2026.

The responsibilities of this position include, but are not limited to:

• 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.
• Field work will be required, and it will include travel that requires overnight stays near project locations.
• The office activities will involve data analysis and preparation of investigation reports.
• Candidate must also be able to work as part of a project team comprised of AECOM staff and subcontractors.
• Flexibility to work on a multitude of diverse projects, a positive attitude, and commitment to workplace health and safety are imperative.

Minimum Requirements:

• Bachelor’s degree in Environmental Science, Geology or related fields.
• Due to the nature of work, US citizenship is required.
• Valid U.S. Driver’s License is required to visit project sites, clients, and other AECOM offices. 
• As a condition of employment, selected candidate must pass a Motor Vehicle Records review and a substance abuse test.

Preferred Qualifications:

• Experience in collecting and evaluating environmental data in the field and interpreting data in an office setting.
• Experience in preparation of investigation reports and preparation of drawings.
• Possess technical report writing skills.
• Provide independent leadership of self and teams in the field.
• Possess a keen understanding of hazard recognition.
• Proficient with basic computer programs and the MS Office suite.

• Relocation assistance is not available for this position.
• Candidate will submit to medical surveillance screening upon hire.
• Travel of 50% is required for this position.
• Position requires participation in random drug and alcohol screening program.

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.