Senior Hydrogeologist

Job ID: 45297Reference: 300016544190234Location: Highlands Ranch, CO, United States | Portland, OR, United States | Reno, NV, United States | Las Vegas, NV, United States | San Luis Obispo, CA, United States | Concord, CA, United States | San Francisco, CA, United States | Missoula, MT, United States | Salt Lake City, UT, United StatesDepartment: Site Assessment & RemediationBusiness Unit: ANA United StatesWork Type: HybridDate Posted: 2026-10-27Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.Role description:Arcadis is seeking a Senior Hydrogeologist to join our team to direct and support the design and implementation of site characterization efforts, analyze data, and develop conceptual models to progress projects through site investigation, remedial evaluation, and toward closure. The successful candidate will help establish client and project needs and develop and lead teams to address data needs, evaluate available information, and deliver key projects to exceed client expectations. Work will include a balance of hydrogeologic evaluation, project scoping and proposal development, and report writing and review.Arcadis offers a flexible working environment and follows a hybrid work structure. A successful candidate will work remotely and from the office based on demands of project and client teams. This is a great opportunity to work with a dynamic team and gain experience in a wide variety of projects for diverse market sectors.Role accountabilities:In this role, you will apply your technical knowledge to support a range of environmental projects, with an emphasis on mining projects. You will represent Arcadis in client discussions and be responsible for the development and planning of 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. You will also be responsible for directing teams to prepare work planning documents and data summary reports and interacting with diverse project teams that span technical disciplines and geographies.Other key responsibilities will include team building, mentoring mid-level staff, and supporting project and account growth by identifying technical solutions and developing teams to address project needs. The ability to communicate effectively with clients, Arcadis technical staff, and Arcadis project managers and assemble resources to deliver projects will drive success in this role.This role will primarily be office based but will also include field assignments. This role will require the ability to travel up to 10%.Qualifications & Experience:First and foremost, do you share our passion for accelerating a planet positive future? Do you want to be part of a growing mining practice that supports many mining clients across North America? If you are motivated and ready to grow your career supporting various environmental projects, come join us!Required:· Bachelor’s Degree in Hydrogeology, Hydrology, or related field· 10+ 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 sitesPreferred:· Advanced degree in Hydrogeology, Hydrology, or related field· A strong hydrogeologic skillset (e.g. proficiency interpreting geologic conditions, aquifer hydraulics, high resolution water level data sets)· Experience conducting contaminant fate and transport analyses (e.g. constituent concentration profiles, temporal and spatial constituent concentration variability, plume stability evaluation, capture zone analysis, analytical or numerical contaminant fate and transport analysis)· Experience evaluating groundwater-surface water interactions· Support of mining clients across a range of project phases, including exploration, baseline evaluation, mine development, mine reclamation, and mine closure· Familiarity with inorganic/metals chemistry· Proficiency using hydrogeologic modeling software (e.g., AQTESOLV, MODFLOW, Groundwater Vistas, HEC Software)· Understanding and application of environmental regulations to mining projects (e.g., NEPA, CERCLA, state surface water and groundwater programs)Why Arcadis?We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It’s why we are pioneering a skills-based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together.You’ll do meaningful work, and no matter what role, you’ll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark, on your career, your colleagues, your clients, your life and the world around you.Together, we can create a lasting legacy.Join Arcadis. Create a Legacy.Our Commitment to Equality, Diversity, Inclusion & BelongingWe want you to be able to bring your best self to work every day. Our ambition is to be an employer of choice and provide a great place to work for all our people. We are an equal opportunity employer. We are dedicated to a policy of non-discrimination in employment on any basis including race, creed, color, religion, national origin, sex, age, disability, marital status, sexual orientation, gender identity, citizenship status, disability, veteran status, or any other basis prohibited by law.Arcadis offers benefits for full time and part-time positions. These benefits include medical, dental, and vision, EAP, 401K, STD, LTD, AD&D, life insurance, paid parental leave, reward & recognition program and optional benefits including wellbeing benefits, adoption assistance and tuition reimbursement. We offer nine paid holidays and 20 days PTO that accrue per year. The salary range for this position is $101,376 - $194,304. Actual salaries will vary and are based on several factors, such as experience, education, budget, internal equity, project and location.#LI-SP1