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Assistant Geologist Jobs in Riverside, CA (NOW HIRING)

TERRACON

Assistant Geologist

Colton, CA · On-site

$24.50 - $34.50/hr

Tabulate and prepare data for written reports. * Assist with report preparation by summarizing data ... Bachelor's degree in Geology, Hydrogeology or related field. * Valid driver's license with ...

TERRACON

Assistant Geologist

Colton, CA

Bachelor's degree in Geology, Hydrogeology or related field. * Valid driver's license with ... Tabulate and prepare data for written reports. * Assist with report preparation by summarizing data ...

Tetra Tech

Senior Engineering Geologist

Diamond Bar, CA

$130K - $170K/yr

Prepare and/or assist in the preparation of design reports * Provide mentorship to junior staff Qualifications : * Bachelor's or master's degree in geology and at least 15 years of direct relevant ...

Geosoils Inc

Be Seen First

Staff Engineer or Staff Geologist

Lake Elsinore, CA · On-site

$70K - $120K/yr

Conduct site reconnaissance and geologic mapping * Assist with slope stability evaluations and ... Bachelor's degree in Civil Engineering, Geological Engineering, Geology, or related field * 2+ ...

Geosoils Inc

Be Seen First

Staff Engineer or Staff Geologist

Lake Elsinore, CA · On-site

$70K - $120K/yr

Conduct site reconnaissance and geologic mapping * Assist with slope stability evaluations and ... Bachelor's degree in Civil Engineering, Geological Engineering, Geology, or related field * 2+ ...

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All JobsGeologist JobsAssistant Geologist JobsAssistant Geologist Jobs in Riverside, CA

Assistant Geologist information

See Riverside, CA salary details

$37.6K

$80.4K

$129.9K

How much do assistant geologist jobs pay per year?

As of Jun 9, 2026, the average yearly pay for assistant geologist in Riverside, CA is $80,363.00, according to ZipRecruiter salary data. Most workers in this role earn between $58,400.00 and $97,000.00 per year, depending on experience, location, and employer.

What are Assistant Geologists?

Assistant Geologists are entry-level professionals who support geologists in studying the Earth’s structure, composition, and processes. Their duties typically include collecting and analyzing soil, rock, and water samples, conducting field surveys, and assisting with geological mapping. They work under the supervision of senior geologists in industries such as environmental consulting, mining, oil and gas, and government agencies. This role provides valuable hands-on experience and is often a stepping stone to more advanced geoscience positions.

What are the typical responsibilities of an Assistant Geologist in a fieldwork setting?

As an Assistant Geologist, you will often support senior geologists during field investigations, which may include collecting soil and rock samples, conducting site surveys, and recording geologic observations. You may also assist in geophysical or geochemical testing and help with mapping and data analysis back in the office. Fieldwork can be physically demanding and often requires travel to remote locations, but it provides valuable hands-on experience and exposure to a variety of geological projects. Team collaboration is common, as you’ll frequently work with environmental scientists, engineers, and drilling crews to ensure data accuracy and project success.

What are the key skills and qualifications needed to thrive as an Assistant Geologist, and why are they important?

To thrive as an Assistant Geologist, you need a solid background in geology or earth sciences, typically supported by a relevant bachelor's degree and foundational fieldwork experience. Familiarity with GIS software, mapping tools, and data analysis platforms is important, and certifications like OSHA HAZWOPER may be required for field safety. Strong observational skills, attention to detail, and effective communication are vital soft skills for collecting and reporting accurate geological data. These skills ensure reliable data collection, adherence to safety standards, and successful collaboration on geological projects.

What is the difference between Assistant Geologist vs Geoscientist?

AspectAssistant GeologistGeoscientist
Required CredentialsBachelor's degree in geology or related fieldBachelor's or master's degree in geology, geoscience, or related field
Work EnvironmentFieldwork, lab analysis, data collectionResearch, data analysis, fieldwork, report writing
Employer & Industry UsageMining, environmental consulting, oil & gasResearch institutions, government agencies, energy companies
Common Search & ComparisonYesYes

Assistant Geologists typically perform fieldwork and basic data collection under supervision, while Geoscientists often engage in research, complex data analysis, and report writing. Both roles require similar educational backgrounds, but Geoscientists usually hold advanced degrees and work in broader research or policy settings. Understanding these differences helps job seekers identify the right career path in geology-related fields.

What are the most commonly searched types of Geologist jobs in Riverside, CA? The most popular types of Geologist jobs in Riverside, CA are:
What are popular job titles related to Assistant Geologist jobs in Riverside, CA? For Assistant Geologist jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Assistant Geologist jobs in Riverside, CA look for? The top searched job categories for Assistant Geologist jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Assistant Geologist jobs? Cities near Riverside, CA with the most Assistant Geologist job openings:
Assistant Geologist jobs near you
Assistant Geologist

Assistant Geologist

TERRACON

Colton, CA • On-site

$24.50 - $34.50/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 12 days ago

Terracon rating

7.3

Company rating: 7.3 out of 10

Based on 112 frontline employees who took The Breakroom Quiz

42nd of 57 rated business consultants

Job description

Job Description
Evaluate and interpret subsurface field and sampling data including soil and groundwater to develop conclusions concerning the environmental and geologic site conditions. Generate subsurface maps and cross-sections and collaborate with engineering and environmental scientist staff on projects. Oversee field monitoring and testing of soils including boring investigations and soil type classification. Interpret soil, bedrock and groundwater elevation and quality data. Prepare written plans and reports related to site investigations, assessments and remediation activities. Projects may include construction projects focusing on earthwork and structural foundations; well design and sampling; environmental assessments including Phase I/II site assessments; seismic risk assessments.
Responsibilities
  • Follow safety rules, guidelines and standards for all projects. Participate in pre-task planning. Report any safety issues or concerns to management.
  • Understand and practice quality acumen.
  • Support consistent quality standards on proposal and project delivery.
  • Entry level geological professional responsible for gathering data and information to be evaluated by other team members.
  • Performs sampling and testing of water, soil, and other materials.
  • Tabulate and prepare data for written reports.
  • Assist with report preparation by summarizing data and information within reports.
  • Operates field monitoring equipment.
  • Assists with operation and maintenance of remediation and instrumentation systems.
  • Transport material, samples or documents to the laboratory for further testing and analysis.
  • Maintains and calibrates field monitoring equipment.

Qualifications
  • Bachelor's degree in Geology, Hydrogeology or related field.
  • Valid driver's license with acceptable violation history.

Preferred Certification:
  • Certification in field of expertise preferred.

About Us
Terracon is a 100 percent employee-owned multidiscipline consulting firm comprised of more than 8,000 curious minds focused on solving engineering and technical challenges from more than 200 locations nationwide. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon's growth is due to our talented employee-owners exceeding expectations in client service and growing their careers with new and exciting opportunities in the marketplace. Terracon was recognized as the #1 firm in Asbestos and Lead Abatement.
Terracon's vision of "Together, we are best at people" is demonstrated through our excellent compensation and benefits package. Based on eligibility, role and job status, we offer many programs including medical, dental, vision, life insurance, 401(k) plan, paid time off and holidays, education reimbursement, and various bonus programs.
About the Team
Innovation and hands-on practice come together in our geotechnical consulting services. We provide geotechnical services nationwide for a wide range of projects, drawing on six decades of historical geotechnical data, a fleet of more than 200 drill rigs, 140 accredited laboratories, and thousands of employees to quickly organize or capture site data wherever projects are located. From AI-supported solutions and predictive technologies to geophysics and traditional exploration, we deliver precision, value-added subsurface information and engineering and scientific expertise to solving our clients' challenges and achieve their goals for project sustainability, quality, and efficiency.

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