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Development Geologist Jobs in California (NOW HIRING)

Essel

Geologist

Santa Ana, CA · On-site

As a Project Geologist, you will play a key role in conducting geological and environmental ... Development and oversight of remedial/removal actions * Field sampling and procedures

Essel

Geologist

Santa Ana, CA · On-site

As a Project Geologist, you will play a key role in conducting geological and environmental ... Development and oversight of remedial/removal actions * Field sampling and procedures

Essel

Geologist

Santa Ana, CA · On-site

As a Project Geologist, you will play a key role in conducting geological and environmental ... Development and oversight of remedial/removal actions * Field sampling and procedures

Harrington Geotechnical Engineering

Geologist

Orange, CA · On-site

$80K - $100K/yr

Staff Geologist - About the Company: Harrington Geotechnical Engineering Inc. (HGEI), a QAI company ... and development of plans and specifications, observation and inspection, and the writing ...

Terra AI

Senior Geologist

Redwood City, CA · On-site

$185K - $250K/yr

... development. As global demand for copper, lithium, nickel, rare earth elements, geothermal energy ... The company's platform integrates geological, geophysical, and drilling data into intelligent ...

Geosoils Inc

Be Seen First

Professional Geologist or Certified Engineering Geologist

Carlsbad, CA · On-site

$90K - $120K/yr

Provide field oversight during construction, including grading and site development Qualifications * Active California PG or CEG license (required) * Bachelor's or Master's degree in Geology ...

Terra AI

Senior Geologist

Redwood City, CA · On-site

$185K - $250K/yr

... development. As global demand for copper, lithium, nickel, rare earth elements, geothermal energy ... The company's platform integrates geological, geophysical, and drilling data into intelligent ...

Essel

Geologist

Fairfield, CA · On-site

Analyze geological data and prepare detailed technical reports. * Evaluate potential environmental ... Contribute to business development efforts, including proposal preparation. * Supervise personnel ...

Geosoils Inc

Be Seen First

Professional Geologist or Certified Engineering Geologist

Carlsbad, CA · On-site

$90K - $120K/yr

Provide field oversight during construction, including grading and site development Qualifications * Active California PG or CEG license (required) * Bachelor's or Master's degree in Geology ...

Essel

Geologist

Fairfield, CA · On-site

Analyze geological data and prepare detailed technical reports. * Evaluate potential environmental ... Contribute to business development efforts, including proposal preparation. * Supervise personnel ...

Essel

Geologist

Fairfield, CA · On-site

Analyze geological data and prepare detailed technical reports. * Evaluate potential environmental ... Contribute to business development efforts, including proposal preparation. * Supervise personnel ...

NV5

Geologist

Ventura, CA · Hybrid

$35 - $41/hr

As our Geologist, you will spend 80%-90% of your time in the field and 10%-20% in the office ... development/advancement opportunities. NV5 provides equal employment opportunities (EEO) to all ...

NV5

Geologist

Ventura, CA · Hybrid

$35 - $41/hr

As our Geologist, you will spend 80%-90% of your time in the field and 10%-20% in the office ... development/advancement opportunities. NV5 provides equal employment opportunities (EEO) to all ...

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Development Geologist information

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

To thrive as a Development Geologist, you generally need a degree in geology or earth sciences, with expertise in sedimentology, stratigraphy, and reservoir characterization. Familiarity with geological modeling software (such as Petrel), seismic interpretation tools, and experience with well log analysis are typically required. Strong analytical thinking, attention to detail, and effective teamwork and communication skills are crucial in this role. These skills are vital for accurately evaluating subsurface formations, optimizing hydrocarbon extraction, and collaborating with multidisciplinary teams to maximize resource development.

How does a Development Geologist typically collaborate with engineers and other subsurface professionals on oil and gas projects?

Development Geologists work closely with reservoir engineers, drilling engineers, and geophysicists to optimize field development plans. They interpret geological data to create detailed reservoir models, which guide drilling locations and production strategies. Regular cross-disciplinary meetings and data-sharing are common, ensuring that geological insights are integrated with engineering constraints to maximize resource recovery. This collaborative environment helps align project goals and troubleshoot challenges as they arise.

What is the difference between Development Geologist vs Exploration Geologist?

AspectDevelopment GeologistExploration Geologist
CredentialsBachelor's or Master's in Geology, often with industry certificationsBachelor's or Master's in Geology, often with certifications
Work EnvironmentOn-site at oil and gas fields, working with drilling and production teamsFieldwork in remote areas, conducting surveys and sampling
Industry UsageFocuses on developing known reservoirs and optimizing productionFocuses on discovering new reserves and exploration activities

Development Geologists primarily work on mature fields to enhance extraction, while Exploration Geologists seek new reserves. Both roles require similar educational backgrounds and certifications but differ in their focus and work environment.

What does a development geologist do?

A development geologist analyzes subsurface rock formations to identify and evaluate hydrocarbon reservoirs, supporting the drilling and production of oil and gas. They interpret geological data, create maps, and collaborate with engineers to optimize extraction processes, often using tools like seismic surveys and geological modeling software.
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What cities in California are hiring for Development Geologist jobs? Cities in California with the most Development Geologist job openings:
What are popular job titles related to Development Geologist jobs in CA? For Development Geologist jobs in CA, the most frequently searched job titles are:
Development Geologist jobs near you
Infographic showing various Development Geologist job openings in California as of June 2026, with employment types broken down into 100% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution.
Intern, Environmental Scientist or Geologist

Intern, Environmental Scientist or Geologist

Haley & Aldrich, Inc

Oakland, CA • On-site

Other

Posted 28 days ago

Job description

Find your path and enjoy the journey at Haley & Aldrich. With us, you'll tackle clients' most meaningful challenges in the built and natural environments - and, in turn, build stronger communities. You'll work with teams of passionate colleagues, driven by a commitment to technical excellence and continuous learning.

As a company, we aim to build a world where communities go beyond resilience, embracing change as an opportunity to enhance safety, well-being, and quality of life. Join us to accelerate this vision and your professional development. 

We are looking to bring on an Environmental Scientist or Geologist Intern to join our Oakland team during the summer of 2026. This person will assist project managers, geologists, and engineers with day-to-day project tasks. This is a full-time role that will be about 3 months long starting in June of 2026. This is a fantastic opportunity to get some hands-on, working field experience and be a valuable contributor to our project teams. This role will be based out of our Oakland, CA office location.

DUTIES/RESPONSIBILITIES
In this position, you will:

  • Serve in a field support role, working on technically challenging projects.
  • Assist geologists, engineers, and project managers with the planning and execution of site characterization programs on environmental management projects.
  • Assist with collection and evaluation of subsurface environmental data.
  • Visit investigation and remediation construction sites to assist in the field.
  • Complete 40-hour OSHA HAZWOPER training course.
  • Complete a presentation for the local Bay Area offices at the end of the summer to include, but not limited to:
  • Overall internship experience, technical projects review, favorite project, biggest obstacle, etc.
  • Demonstrate initiative and a willingness to learn.
  • Be a collaborative team player with excellent communication skills.
  • Need strong computer literacy skills including proficiency in all MS Office software.
  • Driver's license is highly preferred.
  • Ability to work for 3 or more consecutive months on a full-time basis (minimum of 12 weeks preferred).
  • Other duties as assigned.

SKILLS/EXPERIENCE
Minimum Skills and Requirements:

  • Candidate should be at least 2 years into their academic career.
  • Candidate should be enrolled in an environmental science, a geology, or geoscience educational program (undergraduate or graduate).

The salary range for this position in Oakland, CA is 24.00 - 27.00 hourly. Actual compensation will be based upon a variety of factors such as education, related work experience, certificates, skills, and current market conditions. Haley & Aldrich reviews salary ranges each quarter to assess competitiveness with the market.

About Haley & Aldrich 

Haley & Aldrich is committed to solving our clients' most meaningful challenges in the built and natural environments. Our team of 1,000+ engineers and scientists across the United States draws inspiration from one mission: to work closely with clients as they navigate change to create safer, more robust places to live and work. Since our founding in 1957, organizations across the public and private sectors have relied on us for technical excellence and empathetic leadership that achieve results and secure a thriving tomorrow. Find us at haleyaldrich.com and LinkedIn.

Haley & Aldrich is an equal opportunity employer. All qualified applications will receive consideration for employment without regard to gender, race, age, disability, veteran, or any other legally protected status. We offer excellent career growth, a highly competitive total compensation plan, and a solid benefits package. Interested candidates should apply on our Careers page.

Note to external search firms: Haley & Aldrich does not accept unsolicited resumes and will not be obligated to pay a placement fee for unsolicited resumes. Please do not send resumes to Haley & Aldrich employees. Please work through a Talent Acquisition Manager.

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