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Junior Lab Assistant Jobs in California (NOW HIRING)

NextHop AI

Junior Lab Admin

Santa Clara, CA · On-site

Junior Lab Administrator Nexthop AI is a team of industry-leading professionals with deep hardware ... Job Responsibilities: * Assist lab administrators with day-to-day operation of onsite and offsite ...

NextHop AI

Junior Lab Admin

Santa Clara, CA · On-site

Junior Lab Administrator Nexthop AI is a team of industry-leading professionals with deep hardware ... Job Responsibilities: * Assist lab administrators with day-to-day operation of onsite and offsite ...

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Junior Lab Assistant information

See California salary details

$18.8K

$51.8K

$86.8K

How much do junior lab assistant jobs pay per year?

As of Aug 31, 2026, the average yearly pay for junior lab assistant in California is $51,775.00, according to ZipRecruiter salary data. Most workers in this role earn between $35,500.00 and $56,700.00 per year, depending on experience, location, and employer.

What does a junior lab assistant do?

A Junior Lab Assistant supports scientists and senior lab staff by performing routine laboratory tasks such as preparing samples, organizing equipment, cleaning workspaces, and recording data. They help ensure that experiments run smoothly by maintaining an organized and safe laboratory environment. Junior Lab Assistants may also assist with basic experiments and handle administrative tasks, making them an essential part of the lab team. This role is often entry-level and provides valuable hands-on experience for those interested in scientific research or laboratory work.

What skills and qualifications are needed to be a junior lab assistant?

To thrive as a Junior Lab Assistant, you need a basic understanding of laboratory techniques, safety protocols, and often a high school diploma or associate degree in a science-related field. Familiarity with lab equipment, data entry systems, and basic software like Microsoft Excel is typically required. Attention to detail, strong organizational skills, and the ability to follow instructions precisely are valuable soft skills. These competencies ensure the accuracy and safety of lab procedures, supporting reliable research and daily operations.

What challenges might a junior lab assistant face when learning to maintain laboratory equipment?

As a Junior Lab Assistant, you may encounter challenges in understanding the proper handling and calibration of complex laboratory equipment, especially when you are new to the environment. Each instrument may have specific maintenance protocols, and mistakes can impact research outcomes. However, most labs provide hands-on training and mentorship from senior staff, so being proactive in asking questions and carefully following standard operating procedures can help you quickly build confidence and competency.

What is the difference between Junior Lab Assistant vs Laboratory Technician?

AspectJunior Lab AssistantLaboratory Technician
Required CredentialsHigh school diploma or equivalent; some roles may require certificationAssociate degree or relevant certification in laboratory sciences
Work EnvironmentEducational, research, or clinical labs; supervised settingClinical, research, or industrial labs; more independent tasks
Employer & Industry UsageEducational institutions, research centers, hospitalsHospitals, biotech firms, pharmaceutical companies
Common Search & ComparisonEntry-level, support roles in labsTechnical, more specialized lab work

The main difference between a Junior Lab Assistant and a Laboratory Technician lies in their qualifications and responsibilities. Junior Lab Assistants typically have a high school diploma and perform basic support tasks under supervision, while Laboratory Technicians usually hold an associate degree and handle more technical, independent duties. Both roles are essential in laboratory settings, but Laboratory Technicians often require more specialized training and experience.

Can you get a junior lab assistant job with no experience?

Junior lab assistant positions often require little to no prior experience, making them accessible to entry-level candidates. Employers typically look for basic knowledge of laboratory procedures, attention to detail, and the ability to follow safety protocols; relevant coursework or certifications can also be beneficial. On-the-job training is common, and demonstrating enthusiasm and a willingness to learn can improve chances of hiring without experience.

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

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

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

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

What cities in California are hiring for Junior Lab Assistant jobs?

Cities in California with the most Junior Lab Assistant job openings:

Junior Lab Assistant jobs near you
Infographic showing various Junior Lab Assistant job openings in California as of August 2026, with employment types broken down into 2% As Needed, 79% Full Time, 16% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $51,775 per year, or $24.9 per hour.

Lab Assistant II - Evenings

Unio Health Partners

Pasadena, CA

$23 - $25/hr

Full-time

Medical, Dental, Vision, Retirement

Posted 2 days ago

New

Job description

Lab Assistant II
COMPANY DESCRIPTION
Unio Health Partners (UHP) is a highly differentiated physician practice management platform with the goal of transforming care delivery across the Western United States. UHP partners with leading physician practices, creating a cohesive, quality-oriented clinical culture and facilitating best practice sharing across the platform. Our affiliated practices gain access to a broader suite of services, providing a meaningful benefit to both physicians and patients. UHP's best-in-class clinical program covers three sub-specialties (urology, gastroenterology, and radiation oncology) and offers numerous ancillary services, including pathology lab, in-office dispensing, and chronic care management. We are led by a highly accomplished management team and provide a full suite of management services to its affiliated practices. UHP is currently affiliated with 182 providers consisting of 119 physicians and 63 advanced practice providers operating out of 54 locations across Southern, Central, and Northern California.
POSITION SUMMARY
The Lab Assistant II is a senior-level position within the laboratory, responsible for performing advanced laboratory tasks and providing critical support to researchers, scientists, and other laboratory personnel. This role involves complex laboratory procedures, equipment operation, data analysis, and leadership in maintaining a safe and efficient laboratory environment
Schedule: Monday - Friday 2pm - 10:30pm
What you will be doing
Advanced Laboratory Procedures:
  • Conduct advanced laboratory tests, and specimen staining, embedding and procedures with minimal supervision.
Equipment Operation and Maintenance:
  • Operate, calibrate, and maintain complex laboratory instruments and equipment.
Data Analysis and Reporting:
  • Analyze and interpret experimental data and results, providing detailed reports to researchers and scientists.
Sample Handling and Processing:
  • Handle and process sensitive and high-value samples, ensuring proper preservation and storage.
Inventory Management:
  • Assist in budget planning and procurement of specialized materials.
Safety and Compliance:
  • Contribute to the development and updating of safety guidelines.
Training and Mentorship:
  • Train and mentor junior lab assistants and provide guidance on laboratory techniques and procedures.
Cleaning and Maintenance:
  • Perform routine cleaning, maintenance, and calibration tasks.
What you will bring to the team
  • Associate of Science degree in a scientific field or related discipline.
  • Significant laboratory experience, preferably in a research or specialized laboratory environment.
  • 1-3 years of relevant laboratory experience, proficiency in advanced laboratory techniques and procedures
  • Knowledge of current blood borne pathogen and bio-hazardous waste procedures as they apply to the duties of this position.
  • Knowledge of CDPH, CLIA, CAP, and State and Federal laws that apply to the duties of this position in a moderate to high complexity laboratory.
What we can offer you
  • Competitive Salary and Health Benefits (Medical, Dental, Vision) 
  • Generous time off (start accruing on your first day - no waiting period)
  • Paid Holidays
  • 401(k)
  • Company Discounts
  • Collaborative work environment - we want our employees to have a say in how we run our office
  • Employee Recognition

Compensation is depending on a number of factors including a candidate’s qualifications, skills, competencies, or experience that may fall outside of the range shown

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