Senior Groundwater Modeling Lead

EnSafe is expanding its national Hydrogeology and Modeling practice to support a growing portfolio of Department of Defense and commercial projects. We are seeking an experienced Senior Groundwater Modeling Lead to provide technical leadership for complex groundwater flow and transport modeling projects while helping build and grow EnSafe's Modeling practice.

Candidates should possess extensive experience in conceptual hydrogeology, groundwater flow and transport modeling, model calibration, interpretation of hydrogeologic data, and development of numerical models supporting complex environmental investigations, remedial decision-making, and litigation support. Experience developing custom analytical workflows, scripting, or coding to support advanced modeling applications is highly desirable. The ideal candidate will be comfortable developing and executing groundwater flow and transport models using industry-standard software such as MODFLOW, MT3DMS, and Groundwater Vistas as they are working directly with model input and output files to develop custom analytical workflows. The ideal candidate will also be experienced in writing custom code to support the pre-processing of model input parameters, post-processing of model output files, and automation of complex modeling workflows. The successful candidate will combine advanced technical expertise with leadership, mentoring, proposal development, and business development to expand one of EnSafe's fastest-growing technical capabilities.

Location: Flexible. Candidates may be based at any EnSafe office or, for the right individual, another mutually agreed-upon location.

Success in this role will be measured by consistently delivering technically defensible modeling solutions that achieve project objectives; expanding modeling opportunities through internal project teams and external client relationships, while building and mentoring a high-performing team of junior to senior modelers that are capable of working on a wide range of simple to sophisticated projects. Integration with EnSafe's Scientific Services, Technology, and Remediation teams will be expected. 

DUTIES/RESPONSIBILITIES
In this role, you will:

• Identify new opportunities for modeling projects based on existing internal projects and new external opportunities.
• Help to support EnSafe's highly specialized modeling work on SERDP and ESTCP projects for the Department of Defense.
• Establish and communicate modeling group priorities, roadmap, and success metrics.
• Serve as the decision authority for modeling projects including decisions on methods to be used and ensuring high quality work products are developed on every project.

• Serve as a technical advisor, mentor junior staff, perform quality control reviews, and support the development of aspiring hydrogeologists.

• Coordinate with other groups at EnSafe including 3-D Visualization and Environmental Sequence Stratigraphy (ESS) teams within the Hydrogeology Group.

SKILLS/EXPERIENCE
Minimum Skills and Requirements:

• At least 10-15 years of professional experience conducting subsurface flow and transport modeling in an environmental consulting (or equivalent) organization. 
• Advanced degree (Masters or Ph.D.) in Geology, Hydrogeology or an Environmental equivalent
• Demonstrated ability to lead projects and teams, manage multiple priorities, mentor/supervise employees, and communicate effectively with diverse audiences.
• Advanced skills in data analysis, report writing, and preparation of maps, tables, charts, and figures.
• Experience using hydrogeologic modeling tools, including but not limited to MODFLOW, MT3D codes, and Groundwater Vistas. Experience with HYDRUS and/or FEFLOW is a plus.
• Excellent verbal and written communication skills, and strong interpersonal skills. 

Why Join EnSafe?

• Employee-Owned Advantage
  EnSafe is 100% employee-owned, with an ESOP (Employee Stock Ownership Plan) since 1997. That means when EnSafe succeeds, you succeed too, turning company growth directly into shared rewards.
• Commitment to Growth and Wellness
  The company supports personalized career development, mentorship, and employee wellness initiatives such as health tracking tools.
• Purpose‑Driven Work
  EnSafe's mission focuses on impactful environmental, health, and safety consulting—making a real difference in communities and is backed by its long-standing technical credibility. 
• Safety as a Value, Not Just a Service
  Safety is deeply embedded in our culture, prioritizing employee well-being in addition to helping clients maintain compliance. We stress that "safety is part of everything we do."
• A Culture of Freedom & Ownership
  At EnSafe, our career philosophy is built on freedom. The freedom to take initiative, achieve your goals, and shape your own career path Employees are encouraged to pursue growth in a flexible, entrepreneurial environment. 
• Challenging, Creative Work
  Workdays at EnSafe are anything but ordinary, fast-paced, dynamic, and filled with opportunities to tackle projects in environmental consulting, health & safety, engineering, and technology. Every day calls for creativity, innovation, and agile problem-solving.

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