Senior Hydrogeologist

Weston & Sampson is seeking a Senior Hydrogeologist / Team Leader to provide technical leadership and help grow our hydrogeology practice across Massachusetts, New Hampshire, and Maine. This is an exciting opportunity for an experienced professional to play a key role in developing our team, strengthening client relationships, and expanding our water resources services. The position may be based in our Reading, MA; Portsmouth, NH; or Manchester, NH office. We recognize that candidates may bring different strengths across technical leadership, team management, and business development. Our highest priority is finding a strong technical leader who can provide sound hydrogeologic judgment and technical oversight. Experience managing people and operations is also highly valued, followed by demonstrated capability in client development and business growth.

What you'll do:

• Provide technical direction and quality review for hydrogeologic investigations, groundwater-supply development, well design and testing, aquifer evaluations, water-resource planning, permitting, groundwater discharge studies, and related projects.
• Guide project teams through complex technical challenges, regulatory considerations, data interpretation, and development of practical solutions for clients.
• Oversee the quality of technical deliverables, including reports, analyses, permit applications, proposals, and technical memoranda.
• Support team operations through workload planning, project staffing, resource allocation, and coordination across offices and disciplines.
• Mentor and develop junior- and mid-level professionals, helping strengthen technical capabilities, project management skills, and career growth.
• Provide senior oversight of project scope, budgets, schedules, staffing, and client expectations.
• Build and maintain relationships with municipal, water district, institutional, and private-sector clients.
• Contribute to business development by identifying opportunities, developing scopes and fees, preparing proposals, and participating in client interviews and presentations.
• Collaborate with professionals across our water, environmental, engineering, and planning disciplines to expand services and pursue multidisciplinary opportunities.

What you'll bring:

• Bachelor's degree in Geology, Hydrogeology, or a related water resources discipline; master's degree preferred.
• 12+ years of progressively responsible experience in hydrogeology or a related consulting field.
• Professional Geologist (PG) license preferred.
• Strong technical expertise in groundwater hydrogeology, particularly groundwater supply development, production well design and testing, aquifer characterization, water availability evaluations, and water supply permitting.
• Experience providing technical direction, reviewing complex work, and serving as a resource to other technical professionals.
• Familiarity with state and local regulatory agencies, preferably including MassDEP, NHDES, and the Maine Drinking Water Program.
• Experience managing projects and overseeing scope, schedule, budget, staffing, and technical quality.
• Strong communication skills, including the ability to explain complex technical concepts to clients, regulators, colleagues, and nontechnical audiences.
• Experience developing project scopes, budgets, and proposals, with an interest in contributing to client development and practice growth.
• Established client relationships and a track record of developing new business.
• Experience with numerical groundwater modeling, groundwater/surface water interactions, water resource planning, wastewater discharge evaluations, or related specialty areas is a plus.

Overview:

At Weston & Sampson, you’ll work alongside more than 1,000 employee-owners who are passionate about improving our communities. From providing clean water to designing resilient infrastructure and sustainable environments, our work has a direct impact on quality of life. We’re looking for curious, driven professionals who want to contribute to innovative, impactful projects and grow with a team that supports them. We are a 100% employee-owned, interdisciplinary firm offering design, engineering, and environmental services. Since our founding in 1899, we have worked to build a collaborative, forward-thinking environment grounded in respect for each other’s ideas. We offer

• Meaningful work: Contribute to projects that protect and enhance the natural and built environments
• Ownership mindset: As an employee-owner, your work directly contributes to our shared success
• Growth opportunities: Build your career through mentorship, diverse projects, and clear advancement pathways
• Flexible workplace: Work in a way that supports your life and not the other way around
• Strong culture: Join a team that values collaboration, inclusion, and recognition

Our Commitment to Inclusion, Diversity, Equity & Access (IDEA)We believe diverse perspectives make us stronger. Weston & Sampson is committed to fostering a culture of belonging where all employees feel valued, respected, and empowered. We actively support IDEA principles across our organization and in our daily work. Ready to transform your environment? Let’s work together. Explore opportunities and apply: https://www.westonandsampson.com/careers A note to third-party recruitersWeston & Sampson manages all recruiting directly. We do not accept unsolicited resumes without a signed agreement in place. Any unsolicited submissions will be considered property of Weston & Sampson, and we are not responsible for associated fees.