Senior Hydrogeologist

Arcadis • Highlands Ranch, CO

8d • Hybrid

About The Position

Arcadis is seeking a Senior Hydrogeologist to direct and support the design and implementation of site characterization efforts, analyze data, and develop conceptual models that advance projects through site investigation, remedial evaluation, and toward closure. The role establishes client and project needs and develops and leads teams to address data needs, evaluate available information, and deliver projects. Work balances hydrogeologic evaluation, project scoping and proposal development, and report writing and review.

The position supports a range of environmental projects, with an emphasis on mining projects. It involves representing Arcadis in client discussions and planning hydrogeologic investigations, including aquifer parameter estimation, groundwater-surface water interaction evaluation, groundwater fate and transport evaluation, groundwater modeling, and conceptual site model development. The Senior Hydrogeologist directs teams preparing work planning documents and data summary reports, works with multidisciplinary teams across geographies, mentors mid-level staff, and supports project and account growth by identifying technical solutions and developing teams.

The role is primarily office-based, with field assignments and travel of up to 10%. Arcadis follows a hybrid work structure, with work remotely and from the office based on project and client team demands. The role supports a growing mining practice and a variety of environmental projects across diverse market sectors.

Requirements

• Bachelor’s degree in Hydrogeology, Hydrology, or a related field.
• 10 or more years of related experience.
• Strong ability to interpret data, identify and address data gaps, and communicate investigation findings to internal and external teams.
• Ability to establish project objectives, scope Arcadis work products to achieve those objectives, and build teams to deliver projects.
• Experience conducting hydrogeologic investigations at mine sites.

Nice To Haves

• Advanced degree in Hydrogeology, Hydrology, or a related field.
• Strong hydrogeologic skills, such as proficiency interpreting geologic conditions, aquifer hydraulics, and high-resolution water-level datasets.
• Experience conducting contaminant fate and transport analyses, such as constituent concentration profiles, temporal and spatial concentration variability, plume stability evaluation, capture zone analysis, and analytical or numerical contaminant fate and transport analysis.
• Experience evaluating groundwater-surface water interactions.
• Experience supporting mining clients across project phases, including exploration, baseline evaluation, mine development, mine reclamation, and mine closure.
• Familiarity with inorganic/metals chemistry.
• Proficiency using hydrogeologic modeling software, such as AQTESOLV, MODFLOW, Groundwater Vistas, or HEC Software.
• Understanding and application of environmental regulations to mining projects, such as NEPA, CERCLA, and state surface water and groundwater programs.

Responsibilities

• Direct and support the design and implementation of site characterization efforts.
• Analyze data and develop conceptual models to advance site investigations, remedial evaluations, and projects toward closure.
• Establish client and project needs and develop and lead teams to address data needs, evaluate available information, and deliver projects.
• Conduct hydrogeologic evaluations, project scoping, proposal development, and report writing and review.
• Represent Arcadis in client discussions.
• Develop and plan hydrogeologic investigations, including aquifer parameter estimation, groundwater-surface water interaction evaluation, groundwater fate and transport evaluation, analytical and/or numerical groundwater modeling, and conceptual site model development.
• Direct teams preparing work planning documents and data summary reports.
• Interact with project teams spanning technical disciplines and geographies.
• Build teams and mentor mid-level staff.
• Support project and account growth by identifying technical solutions and developing teams to address project needs.
• Communicate with clients, Arcadis technical staff, and project managers, and assemble resources to deliver projects.

Benefits

• Medical, dental, and vision benefits.
• Employee Assistance Program (EAP).
• 401(k).
• Short-term disability (STD), long-term disability (LTD), AD&D, and life insurance.
• Paid parental leave.
• Reward and recognition program.
• Optional wellbeing benefits, adoption assistance, and tuition reimbursement.
• Nine paid holidays.
• 20 days of PTO accrued per year.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior