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Part Time Tester Jobs in California (NOW HIRING)

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Part Time Tester information

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$10

$37

$61

How much do part time tester jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for part time tester in California is $37.86, according to ZipRecruiter salary data. Most workers in this role earn between $21.11 and $50.05 per hour, depending on experience, location, and employer.

How do I become a part time tester with no experience?

To become a part time tester, you should develop basic skills in testing processes and familiarize yourself with common testing tools. Gaining knowledge through online courses or tutorials can help, and some employers may accept entry-level candidates willing to learn and follow instructions. Building a portfolio of testing tasks or volunteering for testing projects can also improve your chances.

What is a part time tester?

Part Time Testers are professionals who evaluate software, websites, or products on a part-time basis to identify bugs, usability issues, or areas for improvement. They typically work flexible hours and may be employed by software companies, product manufacturers, or independent testing firms. Their main responsibilities include executing test cases, documenting results, and reporting problems to development teams. This role is ideal for individuals seeking flexible work schedules or supplemental income.

What is the difference between Part Time Tester vs Full Time Tester?

AspectPart Time TesterFull Time Tester
Work HoursLess than 30 hours/week40 hours/week or more
CertificationsOften entry-level, basic testing certificationsSame certifications, but more experience preferred
Work EnvironmentFreelance, contract, or temporary rolesPermanent employment in testing teams
Industry UsageCommon in software, gaming, and app testingStandard in software development companies

Part Time Testers typically work fewer hours, often on a freelance or contract basis, focusing on specific testing tasks. Full Time Testers work regular hours as permanent employees, with more responsibilities and experience required. Both roles require similar certifications but differ mainly in hours, job stability, and work environment.

What are the typical responsibilities and challenges faced by a part time tester?

As a Part Time Tester, you are generally responsible for executing test cases, reporting bugs, and verifying fixes within software or product development cycles. One common challenge is managing time efficiently to meet deadlines while balancing other commitments, since part-time roles often require flexibility and adaptability. You may also need to quickly familiarize yourself with new applications or updates, and collaborate closely with full-time QA team members to ensure consistent testing standards and communication. This role offers exposure to a variety of testing methodologies and can be an excellent starting point for a career in quality assurance.

What are the key skills and qualifications needed to thrive as a part time tester, and why are they important?

To thrive as a Part Time Tester, you generally need attention to detail, analytical thinking, and a foundational understanding of software testing processes, often supported by relevant coursework or entry-level certifications. Familiarity with bug tracking systems, test management tools, and sometimes basic scripting or automation platforms is typically required. Strong communication, time management, and adaptability are vital soft skills for reporting issues clearly and efficiently in a flexible work environment. These abilities ensure accurate testing, effective collaboration, and successful delivery of high-quality software products.
What are the most commonly searched types of Tester jobs in California? The most popular types of Tester jobs in California are:
What cities in California are hiring for Part Time Tester jobs? Cities in California with the most Part Time Tester job openings:
Infographic showing various Part Time Tester job openings in California as of August 2026, with employment types broken down into 72% Full Time, 20% Part Time, and 8% Contract. Highlights an 57% Physical, 1% Hybrid, and 42% Remote job distribution, with an average salary of $78,746 per year, or $37.9 per hour.

Quality Control Specialist - Temporary, Part Time

Merieux NutriSciences

Salida, CA • On-site

$21.50 - $24.50/hr

Part-time, Temporary

Posted 24 days ago


Mérieux NutriSciences rating

6.8

Company rating: 6.8 out of 10

Based on 20 frontline employees who took The Breakroom Quiz

93rd of 120 rated laboratories


Job description

Quality Control Specialist - Temporary, Part Time
Salida
Temporary
MERIEUX NUTRISCIENCES
As a trusted partner, our Public Health mission is to make food systems safer, healthier and more sustainable. Throughout our global network in 32 countries, we offer to our customers a wide range of testing and innovative solutions dedicated to preventing health risks related to food, environment and consumer goods. External growth has been a key pillar of our history with more than 40 acquisitions completed in the last 10 years.
If you want to contribute to an inspiring long-term purpose, to be part of a fast growing company on a high-value market with significant build-up opportunities, and to grow in an entrepreneurial and warm environment, join us!
YOUR DAY TO DAY LIFE
We are looking for a Quality Control Specialist - Temporary, Part Time in 5262 Pirrone Ct, Salida, CA 95368 USA. Your mission will be to:
THIS IS A 6 MONTH TEMPORARY POSITION WITH PART TIME HOURS
Position Summary
The incumbent develops, maintains, and communicates laboratory quality control systems by ensuring that laboratory procedures are being performed within specified quality guidelines.
Qualifications Required
• The incumbent must have a general knowledge of microbiology or chemistry, generally obtained from a related degree or job experience, to analyze and interpret quality control data accurately. A basic knowledge of food science is necessary to analyze the microbiological or chemical content of food samples. A broad knowledge of laboratory procedures and policies is necessary to develop and maintain appropriate quality control systems and employee training programs. A general knowledge of the Laboratory Information Management System is required to ensure accuracy of client data. A general knowledge of personal computer software and basic data entry skills are needed to generate special reports and calculate quality control results. Physical dexterity is required to prepare plates for sample analysis. The incumbent needs strong analytical abilities to troubleshoot problems and ensure the accurate completion of analysis procedures. Developed interpersonal skills are required to build interdepartmental relationships, and foster a culture that focuses on quality. Planning skills are needed to ensure that analysis tasks are completed in a timely manner. Oral and written communication skills are required to write special reports and work with laboratory personnel on quality issues.
• The incumbent frequently makes decisions regarding the accuracy and validity of testing results and the proper means to investigate problems. Recommendations are made to laboratory management regarding changes to procedures or quality control systems. Unique or unusual problems can require the input of laboratory management in order to determine the optimal solution. Standard Operating Procedures and federal guidelines establish standards from which solutions can be implemented. Factual data is used to make recommendations that will affect the efficiency of the work unit. Mistakes are identified and corrected from the recommendation to the supervisor. The decisions of the incumbent will impact the client, the laboratory and the testing procedure.
• The incumbent receives general supervision. The incumbent works toward general goals and objectives established by laboratory management. The method of attaining the goals is determined by the incumbent in accordance with Standard Operating Procedures. The assigned tasks must be completed within an established time frame to avoid delay in preparing for audits or submitting results to the client. Inaccurate analysis of results or unsatisfactory documentation of quality control records can strain client relations, jeopardize laboratory certification status, and increase the cost of analysis. The incumbent must ensure that laboratory quality control systems meet applicable Company and regulatory guidelines.
Required skills:
• The incumbent analyzes quality control data to ensure that laboratory results are within established quality guidelines. When laboratory results are outside of guidelines, the incumbent must investigate why this is so and develop corrective actions. Data necessary to pinpoint problems is frequently missing and subject to interpretation. Problems can result from faulty testing procedures, improper preparation of the media, cross contamination, and the like. Aseptic techniques must be maintained to prevent contamination which can occur daily and may result in repeating the analysis. The microorganisms do not follow the same pattern continuously and may require testing to be repeated.
Essential Functions and Responsibilities
• Organize, prepare and maintain documentation of laboratory quality control efforts required for audits.
• Complete quality control tasks such as pH, total residual chlorine, inhibitory residues, water suitability and others to ensure the laboratory complies with Standard Operating Procedures and applicable state certification criteria.
• Track laboratory split sample performance and ensure that split sample results are submitted to appropriate parties as required.
• Perform microbiological and chemistry analysis on food samples according to the specifications of the client.
• Serve as a liaison between chemistry, microbiology and quality assurance departments.
• Inform and train laboratory personnel on quality control systems, correct media preparation, and proper analysis procedures.
• Ensure that media and materials are prepared for the next testing sequence.
• Set up equipment and materials needed for analysis. Ensure that equipment is correctly calibrated and maintained.
• Responsibility and authority, in conjunction with the Quality Manager, Operations Manager or Lab Director, to cease specific analyses under their responsibility when evidence from the quality system indicates the process is not in control and the quality of the results is compromised as a result of the non-conformance.
• Maintain knowledge of Laboratory Information Management System (LIMS) that is required to complete job responsibilities.
• Support corporate quality and continuous improvement process.
• This position has the responsibility and authority to initiate action to prevent or minimize departures from the quality system or test procedures. This authority includes addressing resource needs to properly address issues such as client turn-around time requirements, overtime limits, employee turnover, work stoppage and assure the appropriate type and amount of materials are ready and available for use.
• Perform other related duties as needed.
Communication
• The incumbent has frequent contact with client and laboratory personnel in all departments to coordinate quality control procedures and programs. The incumbent has occasional contact with regulatory officials to obtain information and respond to questions.
YOUR PROFILE
Physical Demands and Work Environment
• The incumbent works in a laboratory setting with proper lighting and temperature control. Occasional exposure to laboratory fumes, chemicals, and materials will occur when in the laboratory. Safety equipment of gloves, laboratory coat and eyeglasses may need to be worn depending on the testing process. The incumbent uses the autoclave daily to complete the analysis process. Continuous lifting of analysis materials weighing between 10-50 pounds are necessary to transport media materials. The incumbent can expect extended time spent in a standing position. The incumbent should be able to detect slight variation in shades of colors.
Compensation Range: $21.50 - $24.50 hourly USD
The information above provides a general overview and may vary based on specific job responsibilities, location, or other factors. Details will be clarified during the hiring process.
#LI-DNP
WHY JOIN US?
  • Because you would contribute to an inspiring Public Health purpose, supported by long-term and visionary shareholders.
  • Because you would have an impact on our strategic pillars that build on 60 years of experience and expertise.
  • Because you would be part of a community of an enthusiastic and skilled group of people who love co-building together and serving a purpose bigger than them.
  • Because you would be welcome as you are, in a diverse and open-minded environment that is rich in our singularities and differences.
  • Because you would grow in an international group of more than 10,000 fantastic team members, with plenty of opportunities to learn and share.

Ready for the journey?
To apply please click on 'Apply now' button

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