Senior Hydrogeologist / Project Manager

About the role

Hazen is seeking a Senior Hydrogeologist with deep Northern California experience to play a key role in advancing our growing groundwater practice. This position is ideal for a seasoned professional who combines strong technical expertise with a passion for mentoring teams, building client relationships, and shaping the strategic growth of a regional practice.

Responsibilities

• Lead and manage hydrogeologic investigations, recharge, and water supply projects across Northern California and the U.S.
• Serve as Technical Lead or Project Manager for groundwater projects including production, monitoring, injection well programs, groundwater analysis, modeling, aquifer testing, and hydrogeologic interpretation.
• Oversee well siting, design, drilling, testing, and well construction projects.
• Develop and maintain relationships and support business development activities internally and with external clients.
• Contribute to proposal development including scope definition, cost estimating, and technical approaches.
• Mentor junior and mid-level staff and provide technical review of deliverables.
• Interface with regulatory agencies (e.g., RWQCB, DDW, EPA, GSAs).

Requirements

• BS or MS in Hydrogeology, Geology, Geological Engineering, or a related field. 10+ years of professional hydrogeology experience, with significant Northern California project experience.
• Demonstrated experience with: Production, monitoring, and/or injection well design and construction. Aquifer testing. Groundwater data analysis and/or modeling. Regulatory permitting compliance and agency coordination.
• Northern California PG required. Proven ability to support or lead business development efforts and client engagement.
• Strong leadership, communication, and project management skills.
• Proven ability to support or lead business development efforts and client engagement.
• Experience working with municipal, utility, industrial, and private-sector clients.
• Professional Geologist (PG) license. CHG and/or other applicable licensures preferred.

Qualifications

Comprehensive health benefits (medical, dental, vision, and prescription plans)
Pre-tax flexible spending plans for medical, dependent care, and transportation
Short and long-term disability, and employer paid life insurance
Paid holidays, floating holidays, and paid time off (PTO)
Employer-contributed 401(k) plan and additional financial planning support
Professional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization memberships

Benefits

Starting pay range for this position depends on skills, experience, education and geographical location