A leading environmental consulting firm in California is looking for a Senior Hydrogeologist (Seller-Doer) to lead environmental investigation and remediation projects. This role involves business development, managing project teams, and providing technical leadership. The ideal candidate has a degree in geology/hydrogeology, professional certifications, and substantial experience in the field. A hybrid work model is offered, and competitive compensation ranges from $130,000 to $180,000 yearly, based on experience.