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Assistant Scientist Jobs in California (NOW HIRING)

TERRACON

Assistant Scientist

Lodi, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Terracon is seeking an Environmental Assistant Scientist to join our Due Diligence practice group in Lodi, California. In this position, you will oversee all aspects of Phase I Environmental Site ...

TERRACON

Assistant Scientist

Lodi, CA · On-site

$24.50 - $34.40/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Terracon is seeking an Environmental Assistant Scientist to join our Due Diligence practice group in Lodi, California. In this position, you will oversee all aspects of Phase I Environmental Site ...

BALL HORTICULTURAL COMPANY

Assistant Scientist

Guadalupe, CA · On-site

$23 - $29/hr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Description: · Receive daily instruction from Helix scientists to perform standard established laboratory procedures · Work independently to follow standard established laboratory procedures · ...

BALL HORTICULTURAL COMPANY

Assistant Scientist

Guadalupe, CA

$23 - $29/hr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Description Receive daily instruction from Helix scientists to perform standard established laboratory procedures Work independently to follow standard established laboratory procedures Perform ...

BALL HORTICULTURAL COMPANY

Assistant Scientist

Guadalupe, CA · On-site

$23 - $29/hr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Description Receive daily instruction from Helix scientists to perform standard established laboratory procedures Work independently to follow standard established laboratory procedures Perform ...

Ball Horticultural Company

Assistant Scientist

Guadalupe, CA · On-site

$23 - $29/hr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Job Type Full-time Description • Receive daily instruction from Helix scientists to perform standard established laboratory procedures • Work independently to follow standard established ...

TERRACON

Regulatory Compliance Assistant Scientist

Sacramento, CA · On-site

$24.48 - $34.38/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Terracon is seeking an Environmental Regulatory Compliance Assistant Scientist to join our team in either Sacramento, Lodi, or East Bay, California! This is an excellent opportunity for a highly ...

TERRACON

Regulatory Compliance Assistant Scientist

Concord, CA · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Terracon is seeking an Environmental Regulatory Compliance Assistant Scientist to join our team in East Bay, California! This is an excellent opportunity for a highly-motivated individual join a ...

TERRACON

Regulatory Compliance Assistant Scientist

Laguna Hills, CA · On-site

$26.70 - $37.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Terracon is seeking an Environmental Regulatory Compliance Assistant Scientist to join our team in Orange County, California! This is an excellent opportunity for a highly-motivated individual join a ...

TERRACON

Regulatory Compliance Assistant Scientist

Concord, CA · On-site

$28.93 - $40.63/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Terracon is seeking an Environmental Regulatory Compliance Assistant Scientist to join our team in East Bay, California! This is an excellent opportunity for a highly-motivated individual join a ...

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Assistant Scientist information

See California salary details

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How much do assistant scientist jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for assistant scientist in California is $30.18, according to ZipRecruiter salary data. Most workers in this role earn between $24.18 and $37.98 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an assistant scientist?

To thrive as an Assistant Scientist, you need a solid background in scientific research, data analysis, and laboratory techniques, typically supported by a bachelor's or master's degree in a relevant field. Familiarity with laboratory equipment, data analysis software, and compliance with safety protocols is often necessary. Strong attention to detail, teamwork, and effective communication help an Assistant Scientist collaborate and contribute to research goals. These skills ensure accurate experimental results, efficient workflow, and meaningful contributions to scientific discovery.

What is the difference between Assistant Scientist vs Research Associate?

AspectAssistant ScientistResearch Associate
Required CredentialsBachelor's or Master's degree in a relevant field; some roles may require a PhDBachelor's or Master's degree; often more focused on supporting research activities
Work EnvironmentLaboratories, research facilities, field sitesLaboratories, research projects, data analysis
Employer & Industry UsageResearch institutions, biotech, pharmaceuticals, academiaUniversities, research labs, government agencies
Common Search & Comparison IntentUnderstanding entry-level research roles, career progressionSupporting research tasks, project involvement

Assistant Scientists and Research Associates often share similar educational backgrounds and work environments. The main difference lies in responsibilities: Assistant Scientists typically engage in more independent research and may have opportunities for project leadership, while Research Associates focus on supporting research activities and data collection. Both roles are vital in research settings and serve as stepping stones for advanced scientific careers.

What is an assistant scientist?

Assistant Scientists are entry- to mid-level research professionals who support scientific investigations in laboratory, field, or academic settings. They assist with experiments, data collection, analysis, and the preparation of reports or publications. Their responsibilities may also include maintaining lab equipment, ensuring safety protocols, and collaborating with senior scientists or research teams. Assistant Scientists are commonly found in industries such as pharmaceuticals, environmental science, and academia. A bachelor's or master's degree in a relevant scientific field is typically required for this role.

What are some common challenges assistant scientists face when transitioning from academia to an industry laboratory setting?

Assistant Scientists moving from academia to industry often encounter differences in pace, project scope, and collaborative structures. Industry labs tend to prioritize efficiency and teamwork, with strict timelines and clearly defined deliverables. Unlike academic research, where projects may be more exploratory, industry roles typically require adherence to standardized protocols and regulatory guidelines. Building strong communication skills and adapting to cross-functional collaboration are essential for success. Embracing these changes can accelerate professional growth and lead to new opportunities within the organization.

What are the most commonly searched types of Scientist jobs in California?

The most popular types of Scientist jobs in California are:

What are popular job titles related to Assistant Scientist jobs in California?

For Assistant Scientist jobs in California, the most frequently searched job titles are:

What job categories do people searching Assistant Scientist jobs in California look for?

The top searched job categories for Assistant Scientist jobs in California are:

What cities in California are hiring for Assistant Scientist jobs?

Cities in California with the most Assistant Scientist job openings:

What are popular job titles related to Assistant Scientist jobs in CA?

For Assistant Scientist jobs in CA, the most frequently searched job titles are:

Assistant Scientist jobs near you
Infographic showing various Assistant Scientist job openings in California as of August 2026, with employment types broken down into 1% As Needed, 76% Full Time, 19% Part Time, 2% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $62,778 per year, or $30.2 per hour.

Assistant Scientist

TERRACON

Lodi, CA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 29 days ago

Terracon rating

7.5

Company rating: 7.5 out of 10

Based on 119 frontline employees who took The Breakroom Quiz

49th of 72 rated business consultants

Job description

Terracon is seeking an Environmental Assistant Scientist to join our Due Diligence practice group in Lodi, California. In this position, you will oversee all aspects of Phase I Environmental Site Assessment (Phase I ESA) projects, from initial research to report delivery, ensuring high-quality work that meets client expectations, established due dates, and industry standards. The ideal candidate is self-motivated, professional, and capable of managing their workload and prioritizing tasks in a fast-paced environment. This is an excellent opportunity to join a growing company with competitive compensation and benefits package.

As a Phase I ESA practitioner, the candidate is expected to have strong competencies in technical writing to be able to review historical and regulatory documentation and summarize it in a clear and concise manner. The Assistant Scientist position will include approximately 25% to 50% of time spent in the field for facility inspections located from the California-Oregon border to Bakersfield, California.

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.
Our national environmental team helps our clients do the right thing for their projects, and for our planet. Our professionals include environmental architects, archaeologists, biologists, engineers, geologists, historians, industrial hygienists, planners, and scientists. Working together in the field, office, or lab, we help guide clients through the steps and processes to address environmental challenges and move their projects forward as quickly, safely, and sustainably as possible. With services including site assessment, planning and permitting including cultural and natural resources, sustainability and resiliency, regulatory compliance, and industrial hygiene and safety, we're at the forefront of helping clients succeed and communities thrive.
  • Bachelor's degree in Environmental Science, Geology, Geography, History or related science field.  Or, in lieu of a degree, a minimum of 4 years' related experience.
  • Valid driver's license with acceptable violation history.
  • Demonstrated high level of technical writing ability
  • Excellent analytical and communication skills
  • Strong working knowledge of Microsoft Excel and Word
  • Work in-person from the Lodi office when not in the field.

Preferred Qualification:

  • Certification in field of expertise.
  • Follow safety rules, guidelines and standards for all projects. Participate in pre-task planning. Report any safety issues or concerns to management.
  •  Be responsible for maintaining quality standards on all projects.
  • Entry level scientific professional responsible for gathering data and information to be evaluated by other team members.
  • Assist with executing Phase I ESA projects from start to finish.
  • Conduct thorough site inspections, including note taking, historical research, and regulatory reviews.
  • Communicate effectively with team members and regulatory agencies.
  • Be able to tabulate, prepare, and compare data for written reports.
  • Prepare reports by summarizing reviewed data and information.
  • Manage projects and work with current staff to ensure quality and timeliness.
  • Manage workload to meet deadlines for multiple projects.
  • Ability to travel (drive or fly) up to 50%, which may include overnight stay.

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