AECOM Americas Jobs

Recruitment fraud warning: Click here for more information.

  • Serpentine Pavilion, United Kingdom
  • Taizhou Bridge, China
  • Connected and Automated Vehicles, United States

Job Information

AECOM Senior Hydrogeologist in Denver, Colorado

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 nearly 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 seeking a highly skilled and experienced Senior Hydrogeologist to join our esteemed groundwater team. As a key member of our team, you will have the opportunity to showcase your expertise in analytical and numerical groundwater flow and solute transport modeling. We are looking for a candidate who has a proven track record of leading hydrogeologic investigations at large, complex sites, with a strong focus on developing effective remedial strategies and achieving closure.

Your role will involve a wide range of responsibilities, including statistical analysis of hydrogeologic data, well-field design and installations, contaminant fate and transport analyses, and groundwater modeling using industry-standard software such as MODFLOW, MODFLOW-USG, FEFLOW, PEST, MT3D, RT3D, and MODPATH. While experience with SEAWAT and FEFLOW is desired, it is not necessary. Additionally, your expertise in LNAPL modeling, decision tree development, and preparation of feasibility studies and remedial action plans will be invaluable.

As a Senior Hydrogeologist, you will actively participate in client and agency meetings and teleconferences, where your exceptional technical presentation skills and ability to advocate for your findings will be crucial. Your knowledge of geology and hydrogeology in various environments, including sedimentary and fractured rock settings, as well as your experience in statistical analyses of groundwater data and DNAPL/LNAPL investigations, will be highly valued.

If you have experience in Pacific Island settings, particularly in Hawaii and basalt aquifers, it will be considered a significant advantage.

Responsibilities include:

  • Provide technical oversight of hydrogeological investigations, including contaminant delineation and remediation and water resources evaluations including SB610, SGMA groundwater basin safe yield assessments, and recharge modeling.

  • Numerical groundwater modeling

  • Develop strategy for hydrogeologic/hydrologic characterization of groundwater and/or surface water systems

  • Provide interpretation of hydrogeologic data, statistical analyses supporting contaminant delineation and remedial alternatives analyses

  • Clearly present and communicate the findings internally, clients and to the LEA

  • Experience with USEPA and local regulatory agencies

  • Contribute effectively in team situations and establish strong relationships with other teams where overlap of client project work exists.

  • Interact with multi-discipline and multi-office teams within AECOM.


Minimum Requirements

  • Bachelor's degree in Geology or Hydrogeology

  • 12 years of professional experience in geological investigations, hydrogeologic applications, statistical analysis of hydrogeologic data, well design, rehabilitations and installations, well-field design, analytical and numerical groundwater flow and transport analyses and modeling or demonstrated equivalency of experience and or education.

  • Valid Driver's license

  • Ability to pass all pre employment pre hire activities

  • United States Citizenship is required

Preferred Requirements

  • Master's Degree in Hydrogeology

  • 15+ years' of professional experience in geological investigations, hydrogeologic applications, statistical analysis of hydrogeologic data, well design, rehabilitations and installations, well-field design, analytical and numerical groundwater flow and transport analyses and modeling

  • Experience with groundwater water balance studies, including understanding and having experience with various methodologies to evaluate groundwater recharge.

  • Experience with petroleum hydrocarbons, VOCs, SVOCs and metals in groundwater; feasibility studies, groundwater remedial system and well-field design and performance evaluations.

  • Proficient in project management, including budget management and tracking.

  • Outstanding written and communication skills, and having a resume of relevant publications in the field of Hydrogeology.

  • Sponsorship will not be offered for this role

  • PG preferred

  • Resume of relevant publications in the field of Hydrogeology

Additional Information


Exempt Position: The offered rate of compensation will be based on individual education, qualifications, experience, and work location. The salary range for this position is $145,000 to $170,000


AECOM is proud to offer a comprehensive benefits program to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D and disability benefits, paid time off, leaves of absence, voluntary benefits, perks, wellness and global well-being, and global EAP, Business Travel and Service Awards programs.


AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $14.4 billion in fiscal year 2023. See how we are delivering sustainable legacies for generations to come at and @AECOM.

Freedom to Grow in a World of Opportunity

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a culture of equity, diversity and inclusion – a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

All your information will be kept confidential according to EEO guidelines.

ReqID: J10097478

Business Line: Environment

Business Group: DCS

Strategic Business Unit: West

Career Area: Science

Work Location Model: Hybrid