Senior Hydrogeologist/Groundwater Modeling Team Leader

True Environmental; Phoenix (AZ); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Matrix New World Engineering, a part of True Environmental, seeks a Senior Hydrogeologist/Groundwater Modeling Team Leader to join the Phoenix team. The role balances office and remote work and offers full company benefits.

The candidate leads groundwater modeling projects and coordinates with clients and regulatory agencies. The position requires senior-level experience in groundwater flow and contaminant transport modeling, strong technical writing, and leadership abilities to guide a modeling

Qualifications

• Bachelor's degree in Geology, Hydrogeology, or Environmental Science; Master’s degree preferred.

Responsibilities

• Lead and manage groundwater flow and solute transport modeling projects, including CSM development, model design, construction, calibration, and uncertainty analyses.
• Manage data acquisition, analysis, permitting support, and report preparation for groundwater resources and environmental projects.
• Oversee multiple projects, including cost estimating, proposal preparation, budgeting, and invoicing.
• Act as primary modeling liaison with clients and regulatory personnel; mentor junior groundwater modelers.

Skills

Groundwater modeling

Leadership

Project management

Technical writing

Communication

Python

ArcGIS Pro

Fortran

Education

Bachelor's degree in Geology / Hydrogeology

Master's degree preferred

Tools

MODFLOW

MODPATH

MT3D

Groundwater Vistas

ArcGIS Pro

Fortran

Python

Grapher

Surfer

Job description

Matrix New World Engineering, a part of True Environmental and its partner firms, have united their strengths to establish the nation's premier environmental and engineering services consulting firm. This powerhouse organization offers an extensive range of services aimed at revolutionizing the built environment and preserving the natural one. Its diverse expertise encompasses environmental remediation, urban planning, engineering iconic coastal and marine structures, developing sustainable energy sources, and pioneering resource extraction methods. Explore further at www.MWNE.com and True-Environmental.com to discover the full scope of our capabilities.

Matrix New World Engineering, a part of True Environmental, is seeking an experienced Senior Hydrogeologist/Groundwater Modeling Team Leader to join our team in Phoenix, AZ. The position will be a full-time position, with flexibility to work in our Phoenix office or remotely and will provide full company benefits that will be provided during interviews. Matrix is an equal opportunity employer.

Our Arizona Water Services Group focuses on hydrogeological and environmental consulting with offices in Phoenix and Prescott and remote staff located in North and South America. The ideal candidate will have senior-level experience in groundwater flow and contaminant transport modeling for water resources and environmental consulting projects and function as the lead groundwater modeler in the modeling team. This candidate will have advanced technical, communication, and writing skills.

What you'll do

• Lead and manage technical aspects of groundwater flow and solute transport modeling projects including Conceptual Site Model (CSM) development, model design, construction, calibration, and application of numerical models as well as conducting sensitivity and uncertainty analyses
• Lead and manage other aspects of groundwater resources and environmental consulting projects including data acquisition, data analysis, permitting support, and report preparation
• Assist with and/or manage multiple groundwater resources and environmental consulting projects including cost estimating, proposal preparation, budget tracking, and invoicing
• Assist with and/or manage day-to-day operations of the groundwater modeling team, ensuring on-time delivery of high-quality work and acting as the primary internal contact for project execution
• Interface with clients as the Project Manager and Senior Hydrogeologist for projects, including but not limited to:
  • Groundwater resources studies and hydrology studies to support Arizona Department of Water Resources (ADWR) permitting programs, such as the Assured and Adequate Water Supply (AWS) determinations, Well Spacing - Well Impact studies and Underground Storage Facility (USF) applications
  • Remedial investigations/feasibility studies, including water quality studies to support Arizona Department of Environmental Quality (ADEQ) permitting programs, such as the Aquifer Protection Permit (APP) and Arizona Pollutant Discharge Elimination System (AZPDES) permit applications
  • Hydrogeologic characterization in support of developing managed aquifer recharge (MAR) sites and aquifer storage and recovery (ASR) wells, complete with aquifer impact analyses including projected groundwater mounding and potential mobilization of contaminants in the vadose zone and aquifer
• Serve as primary modeling liaison with clients, stakeholders, and federal and state regulatory personnel including meetings to discuss technical findings and project permitting requirements
• Mentor, supervise, and train junior groundwater modelers

Minimum Requirements

• Education: Bachelor's degree in Geology, Hydrogeology, or Environmental Science; Master’s degree preferred
• Professional Experience: 10 years in groundwater modeling/hydrogeology/water resources and/or the engineering/environmental remediation sectors
• Modeling Software: Proficiency in numerical groundwater flow and transport software, including MODFLOW, MODPATH, and MT3D. Familiarity with pre-processing applications such as Groundwater Vistas
• Support Software: Proficiency in Geographic Information Systems (ArcGIS Pro) and other post-processing methods such as Fortran, Python, Grapher, Surfer
• Modeling Experience: Extensive groundwater modeling experience and familiarity with the unique groundwater challenges and regulations in Arizona and the arid Southwestern United States
• Experience with developing and applying groundwater flow and transport models in support of environmental compliance, hydrogeologic evaluation and decision making and litigation support
• Additional Requirements: At least 2 years of senior leadership experience
• Project management experience in groundwater resources or environmental consulting projects
• Efficient proposal writer and cost estimator with very proficient technical writing skills
• Capable of working on multiple projects in a dynamic, fast-paced, team-oriented environment
• Strong communication, information technology, and data management skills

Preferred Requirements

• Familiarity with parameter estimation tools such as Parameter Elimination (PEST)
• Experience interpreting geologic, hydrogeologic and analytical data to develop and use conceptual hydrogeologic and predictive computer models
• Familiarity and experience with APP, AZPDES and USF modeling requirements
• Experience supporting mining permitting and compliance
• Advanced proficiency in working with large model datasets using script development, text editors, and relevant software

About Matrix

Matrix, a part of True Environmental and its partner firms, have united their strengths to establish the nation's premier environmental and engineering services consulting firm. This powerhouse organization offers an extensive range of services aimed at revolutionizing the built environment and preserving the natural one. Its diverse expertise encompasses environmental remediation, urban planning, engineering iconic coastal and marine structures, developing sustainable energy sources, and pioneering resource extraction methods. Explore further at www.MWNE.com and True-Environmental.com to discover the full scope of our capabilities.

Matrix’s local Arizona offices have extensive expertise in groundwater flow and transport modeling; water resources; production well design, installation and testing; water system engineering; various water, pollutant, and land permitting; Environmental Site Assessments (ESAs); soil and groundwater characterization / remediation; petroleum leaking underground storage tank (LUST) site assessments; developing site assessment and remedial action plans; CSM development; design of drilling programs for installation of groundwater monitor wells and soil vapor extraction (SVE) wells; GIS and much more.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.