Core Logging Geologist Jobs in Colorado (NOW HIRING)

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 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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Job Description
AECOM is seeking a Geologist to join our West Region and support a diverse portfolio of mining and infrastructure projects. In this role, you will contribute to field investigations, data analysis, and technical reporting that inform critical project decisions from early planning through execution. This position offers the opportunity to work alongside experienced professionals in a collaborative, multidisciplinary environment while gaining exposure to a wide range of geological settings, project types, and clients. The ideal candidate is detail-oriented, technically curious, and motivated to grow their career within a leading global infrastructure and engineering firm.
Key Responsibilities
Technical Work

• Conduct geological fieldwork, including core and cuttings logging, site mapping, sampling, and field investigations in support of mining and infrastructure projects.
• Collect, compile, and analyze geological, geochemical, and geotechnical data to support project interpretation and decision-making.
• Support the development and refinement of geological interpretations, cross-sections, and conceptual models.
• Assist with resource modeling activities, data validation, and interpretation under the guidance of senior technical staff.
• Apply established procedures, standards, and best practices to ensure accuracy, consistency, and quality of geological data and deliverables.

Project Support and Collaboration

• Assist with preparation of technical reports, figures, tables, and supporting documentation for client deliverables.
• Collaborate with multidisciplinary teams including mining engineers, environmental scientists, geotechnical engineers, and planners.
• Support project teams with data management, document control, and coordination of technical inputs.
• Participate in project meetings, site visits, and internal reviews as required.
• Support adherence to project schedules, quality standards, and health and safety requirements.

Qualifications
Minimum Requirements

• Bachelor's degree in Geology or a related discipline and 4+ years of professional geological experience or demonstrated equivalency of experience and/or education.

Preferred Qualifications

• 8+ years of experience supporting geological investigations for mining, infrastructure, or environmental projects.
• Demonstrated field experience, including geological logging, sampling programs, and site investigations.
• Strong data analysis skills with experience handling geological and geochemical datasets.
• Familiarity with geological modeling, data management, or visualization software.
• Ability to work effectively in a team environment and communicate technical information clearly.

Additional Information
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.