Groundwater Modeler

Groundwater Modeler

Montgomery & Associates (M&A) is seeking a full‑time Groundwater Modeler to support our water agency clients with projects across California. The position will be based in either Oakland or Sacramento and involves a hybrid work schedule (approximately 50% office, 50% remote).

This role focuses on the implementation of the Sustainable Groundwater Management Act, working with a team of experienced water resource scientists and engineers.

• Interpret lithologic, hydrologic testing, depth‑specific water quality, and borehole geophysical data.
• Compile, process, and analyze hydrogeologic data using spreadsheets, databases, GIS, graphing software, and programming.
• Develop hydrogeologic conceptual models and water budgets.
• Develop numerical groundwater flow and transport models.
• Conduct pre‑and post‑processing of model inputs and results, implementing updates.
• Manage groundwater model tasks and activities.
• Prepare data summaries, presentations, and technical reports/memos.
• Participate in client meetings/teleconferences to present program results and recommendations.

• Graduate degree in hydrology, geology, water resources engineering, or related field with coursework in hydrogeologic data analysis, groundwater modeling, and computer programming.
• Two to five years of professional experience developing and applying groundwater models.
• Proficiency with Microsoft Office, GIS software, and programming (Python, Scilab, FORTRAN, Octave, etc.).
• Experience with MODFLOW (including NWT, USG, OWHM, GSFLOW, MF6, etc.) and Groundwater Vistas.
• Professional training in quantitative hydrogeology and groundwater modeling.
• Understanding of regional hydrogeologic settings and water resource regulations, such as the California Sustainable Groundwater Management Act.
• Strong organizational and problem‑solving skills with a commitment to deadlines.
• Excellent oral and written communication skills; ability to present technical materials succinctly to teams and clients.
• U.S. citizenship or authorization to work in the United States (required).

• Competitive benefits and salary in a growing team‑oriented company.
• Performance bonuses.
• Dynamic work environment with safety and technical training provided by the company.
• Challenging and collaborative multidisciplinary projects.
• On‑the‑job mentoring by senior professionals.
• Medical, dental, and vision insurance.
• Flexible Spending Account;
  Health Reimbursement Account.
• Long‑ and short‑term disability.
• Life/AD&D insurance.
• Vacation, holiday, personal, and sick leave.
• Employer‑matching 401k retirement plan.

Monthly Base Pay Range: $6,500 - $8,500

Estimated Annualized Compensation Including Bonuses: $87,750 - $114,750

Compensation for qualified extra hours could further increase the estimate above.