Terraphase Engineering Inc. · 14 hours ago
Senior Geologist
Irvine, CA
Full-time
Onsite
Mid, Senior Level
$95K/yr - $118K/yr
5+ years expTerraphase Engineering Inc. offers cost-effective solutions to complex environmental and engineering challenges. They are currently seeking a Senior Geologist to contribute to high-impact environmental remediation projects, collaborating with an experienced technical team across disciplines.
Environmental ConsultingEnvironmental EngineeringGeospatial
Responsibilities
Plan and conduct Phase II Environmental Site Assessments (ESAs), remedial investigations, and site characterizations for complex contaminated properties
Design and oversee the implementation of in-situ and ex-situ remediation systems, including soil vapor extraction, bioremediation, chemical oxidation, and excavation
Develop and refine Conceptual Site Models (CSMs) to support data interpretation, risk assessment, and remedial strategy development
Lead the preparation of work plans, sampling and analysis plans (SAPs), health and safety plans (HASPs), and other regulatory submittals
Coordinate and manage field programs including drilling, well installation, soil/groundwater sampling, and contractor oversight
Serve as a technical liaison with regulatory agencies (e.g., EPA, DTSC, RWQCB) and provide strategic guidance to clients on regulatory pathways and risk-based decision-making
Prepare high-quality technical reports, including investigation reports, feasibility studies, and remedial action plans, in compliance with federal and state regulatory standards
Mentor junior staff, review deliverables, and contribute to project planning, budgeting, and scheduling
Qualification
Required
5–10 years of progressive experience in environmental consulting, applied geology, or remediation project management
Demonstrated experience with CERCLA (Superfund), RCRA, NPL sites, and California-specific regulatory frameworks
Deep understanding of fate and transport of contaminants, environmental forensics, and hydrogeologic evaluations
Proven ability to manage field teams, subcontractors, and technical scopes independently with limited supervision
Excellent technical writing, data analysis, and communication skills, including client and regulatory interaction
Willingness to travel locally for fieldwork and occasional project meetings as needed
Preferred
Professional Geologist (PG) license in California strongly preferred
Benefits
Medical
Dental
Vision
Employer Paid Life Insurance
Long-Term Disability
A generous 401(k) match
Commuter Benefits
TerraLunches
TerraTalks
Tuition/Licensing/Professional Development Reimbursement
Flexible Work Schedule
Ongoing company-sponsored events
Company
Terraphase Engineering Inc.
Terraphase offers cost-effective solutions to complex environmental and engineering challenges. We listen to our clients and focus on their needs.
51-200 employees
H1B Sponsorship
Terraphase Engineering Inc. has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (3)
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
$0.3M2023-07-28Series Unknown· $0.3M
Recent News
2025-11-01
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