Senior Professional Geologist

APTIM • Stockton, CA

5d

About The Position

APTIM is seeking a Senior Professional Geologist in California to join its Solid Waste Services Group and support a growing portfolio of public- and private-sector solid waste projects. The work includes groundwater and surface water monitoring, assessment, and corrective action; hydrogeologic investigations and characterization; conceptual site models; monitoring well services; groundwater statistical and trend analysis; stormwater compliance; solid waste regulatory compliance and reporting; environmental assessments, investigations, and remediation; and geotechnical investigations with related environmental support.

The role provides senior technical leadership for landfill hydrogeology, groundwater, and environmental compliance projects, including leading multidisciplinary teams, reviewing data and deliverables, and developing practical solutions under applicable regulations. It also manages project scopes, budgets, schedules, resources, and client relationships; supports proposals and business development; mentors junior staff; and provides oversight of field programs and regulatory interactions. Periodic field work and use of required PPE may be necessary when project conditions require it.

APTIM describes a culture centered on mutual respect and honesty, with opportunities to learn, develop business and leadership skills, and work across varied projects. The company emphasizes meaningful work, flexibility, employee input, and personal and professional development. The stated good-faith pay range is $134,500–$150,000 per year; compensation depends on factors including experience, education, skills, location, client requirements, market competitiveness, and internal equity.

Requirements

• Bachelor's or master's degree in Geology, Hydrogeology, Engineering Geology, or a related geoscience discipline.
• Current California Professional Geologist (PG) license.
• Approximately 15+ years of relevant professional experience in groundwater monitoring, hydrogeologic investigations, regulatory compliance, and technical reporting.
• Experience working with the California State Water Resources Control Board and/or Regional Water Quality Control Boards.
• Strong analytical and problem-solving skills, including the ability to evaluate complex geologic and hydrogeologic conditions.
• Current 40-hour OSHA HAZWOPER training and 8-hour refresher certification.
• Excellent written and verbal communication skills.
• Strong organizational and project-management skills.
• Ability to work independently and collaborate effectively on multidisciplinary teams.
• Ability to communicate effectively with clients, regulators, contractors, and internal project teams.
• Ability to perform periodic field work and wear required PPE when project conditions require it.

Nice To Haves

• Experience with California Title 27 requirements applicable to solid waste facilities.
• Experience supporting landfill closure and post-closure monitoring and compliance programs.

Responsibilities

• Serve as technical lead for landfill hydrogeology, groundwater, and environmental compliance projects.
• Lead and support multidisciplinary project teams and complex technical assignments.
• Develop and evaluate conceptual site models and groundwater monitoring programs.
• Review and interpret groundwater monitoring data, statistical evaluations, and trends.
• Lead preparation of regulatory compliance reports, investigation and monitoring plans, corrective action studies, and other technical documents.
• Provide senior technical review and QA/QC of reports, work plans, calculations, and other deliverables.
• Apply relevant federal, state, and local environmental regulations to develop practical client solutions.
• Manage project scopes, budgets, schedules, resources, and technical deliverables.
• Serve as a technical point of contact for clients, regulatory agencies, contractors, and project teams.
• Anticipate client needs and project challenges, and develop practical, cost-effective solutions.
• Coordinate and attend meetings with clients, agencies, contractors, and other stakeholders.
• Support proposal development, scope and fee preparation, business development, and growth of APTIM's California solid waste practice.
• Build and maintain relationships with current and prospective clients.
• Coordinate with engineering, environmental, compliance, construction, and field teams.
• Mentor and provide technical guidance to junior geologists, scientists, engineers, and field staff.
• Provide senior oversight of groundwater, surface water, soil, and soil vapor sampling and investigation programs.
• Oversee monitoring well installation, development, rehabilitation, and abandonment, as well as other subsurface investigations.
• Coordinate with drilling contractors, laboratories, field personnel, and clients to support field programs.
• Review sampling plans, field documentation, laboratory data, and related technical information.
• Interface with California regulatory agencies, including Regional Water Quality Control Boards, as appropriate.
• Communicate technical concepts, results, recommendations, and project plans to technical and non-technical audiences.
• Demonstrate and promote a Safety First work ethic.
• Perform other project and technical responsibilities as needed.

Benefits

• Medical insurance options through the APTIM Benefits Marketplace.
• Vision insurance options through the APTIM Benefits Marketplace.
• Dental insurance options through the APTIM Benefits Marketplace.
• Company-paid and optional life insurance.
• Short-term and long-term disability insurance.
• Accident, critical illness, and hospital indemnity coverage.
• Paid holidays, vacation, and sick leave, subject to eligibility and company policy and applicable law.
• 401(k) plans; eligibility and plan details depend on business unit.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior