Job 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 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.

Job Description

AECOM  is actively seeking a highly motivated Sr. Environmental Scientist to join our Environmental Remediation group in Denver, CO. We are seeking a candidate who is an excellent communicator and technically capable, with an awareness of relevant regulations. The successful candidate will work under the oversight of an experienced team of engineers and scientists on environmental site assessments, remedial and solid waste design and construction, and environmental support on multi-disciplinary projects. This position will involve field and office responsibilities with potential for growth. We will consider candidates from other locations such as: Fort Collins, Colorado Springs, Grand Junction, and Glenwood Springs, CO. 

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

• Performs standard scientific work requiring application of techniques and procedures.
• Detect problems when using standardized procedures because of the condition of sample, difficulties with the equipment, etc. 
• Conducts specific phases of projects for more experienced scientists. 
• Proposes appropriate analytical methods and techniques. Assists in providing advice and consulting services within scope of scientific knowledge. 
• Draw conclusions and makes recommendations based on analysis. 
• Interprets and records data, conducts analyses, compares findings to relevant studies and local, state and federal regulations to ensure compliance.
• Works under general supervision.
• Flexible with working extended hours and locations, travel may be greater than 50 percent of time. 
• Must be able to do day travel regionally.

Qualifications

Minimum Requirements

• Bachelor's Degree in environmental sciences or engineering or other related fields, AND eight (8) years of relevant experience or demonstrated equivalency of experience and education.
• Valid driver's license.
• Subject to a pre-employment Background check.
• Qualified applicants who are offered a position must pass a pre-employment substance abuse test.
• Due to some of the sites, US Citizenship or a permanent resident is required. 

Preferred

Qualifications

• Master's Degree preferred
• Willingness and ability to work outdoors in sometimes challenging conditions.
• Good interpersonal and communication skills, comfortable liaising with clients, colleagues and sub-contractors alike.
• Willingness and ability to learn and rapidly master new tasks.
• Scientific research and report writing (including web based research).
• Strong analytical and numerical skills.
• Excellent written and verbal skills.
• Strong quality and time management.
• Self-starter, develops and delivers work under own initiative.
• Solid attention to detail and thorough approach to work.
• Seeking professional certifications.
• 40hr OSHA HAZWOPER certificate.
• Microsoft Office, AutoCADD, GIS applications.

Additional Information

• Sponsorship will not be available for this role now or in the future.
• Relocation is unavailable for this role

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 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. 

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