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Freelance Lab Test Engineer Jobs in Rialto, CA (NOW HIRING)

Prior work assignments in engineering-related activities preferred. OTHER SKILLS: SEM and XRD experience a plus. EQUIPMENT OPERATED: Telephone, personal computer, and various lab test equipment.

Prior work assignments in engineering-related activities preferred. OTHER SKILLS: SEM and XRD experience a plus. EQUIPMENT OPERATED: Telephone, personal computer, and various lab test equipment.

Test Lab Stockroom Clerk

Brea, CA ยท On-site

$23 - $25/hr

The Test Lab Stockroom Clerk organizes and maintains the engineering test lab stockroom. This individual also maintains the inventory database to accurately reflect the inventory position of all ...

Test Lab Stockroom Clerk

Brea, CA ยท On-site

$23 - $25/hr

The Test Lab Stockroom Clerk organizes and maintains the engineering test lab stockroom. This individual also maintains the inventory database to accurately reflect the inventory position of all ...

Prior work assignments in engineering-related activities preferred. OTHER SKILLS: SEM and XRD experience a plus. EQUIPMENT OPERATED: Telephone, personal computer, and various lab test equipment.

Prior work assignments in engineering-related activities preferred. OTHER SKILLS: SEM and XRD experience a plus. EQUIPMENT OPERATED: Telephone, personal computer, and various lab test equipment.

Perform engineering calculations such as flow rate, load testing, and opening area measurements ... Support training and development of lab technicians and entry-level staff, including guidance on ...

Plumbing-Test Technician II

Ontario, CA ยท On-site

$23.17 - $29.52/hr

Perform engineering calculations such as flow rate, load testing, and opening area measurements ... Support training and development of lab technicians and entry-level staff, including guidance on ...

Manage test house qualifications and yield improvements * Characterization, ATE and probe data ... Lab Equipment knowledge related to VNA/PNA, Spectrum Analyzer, Digital and Real-Time Oscilloscope ...

Lab Technician

Riverside, CA ยท On-site

$20 - $25/hr

Overview NV5 is a provider of engineering and consulting services to public and private sector ... With offices nationwide and abroad, NV5 helps clients plan, design, build, test, certify, and ...

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Freelance Lab Test Engineer information

See Rialto, CA salary details

$17

$48

$72

How much do freelance lab test engineer jobs pay per hour?

As of May 29, 2026, the average hourly pay for freelance lab test engineer in Rialto, CA is $48.05, according to ZipRecruiter salary data. Most workers in this role earn between $36.88 and $60.24 per hour, depending on experience, location, and employer.

What is the difference between Freelance Lab Test Engineer vs Quality Control Technician?

AspectFreelance Lab Test EngineerQuality Control Technician
CredentialsRelevant certifications (e.g., ISO, ASTM), technical degreesTechnical diploma or associate degree, certifications optional
Work EnvironmentFreelance projects, laboratories, client sitesIn-house labs, manufacturing facilities, testing labs
Employer & IndustryIndependent contractors, consulting firms, various industriesManufacturers, quality departments, industrial sectors

Freelance Lab Test Engineers and Quality Control Technicians both work in laboratory settings and require technical certifications. However, Freelance Lab Test Engineers typically operate independently on diverse projects, while Quality Control Technicians are employed full-time within organizations to ensure product quality. The choice depends on whether you prefer freelance flexibility or a stable in-house role.

What are popular job titles related to Freelance Lab Test Engineer jobs in Rialto, CA? For Freelance Lab Test Engineer jobs in Rialto, CA, the most frequently searched job titles are:
What job categories do people searching Freelance Lab Test Engineer jobs in Rialto, CA look for? The top searched job categories for Freelance Lab Test Engineer jobs in Rialto, CA are:
What cities near Rialto, CA are hiring for Freelance Lab Test Engineer jobs? Cities near Rialto, CA with the most Freelance Lab Test Engineer job openings:

Specialist, Systems Engineering / Integration and Test - GPS

L3HHCM20

Yorba Linda, CA โ€ข On-site

$92.50K - $171.50K/yr

Other

Medical, Retirement, PTO

Posted 28 days ago


Job description

Job Title: Specialist, Systems Engineering / Integration and Test - GPS

Job Code: 35815ย 

Job Location: Yorba Linda, CA

Work Schedule: 4/10 (off every Friday)

Clearance: Must Have Active Secret Clearance to Be Considered

Job Description:ย 

As a member of the Engineering Technical Team, this position will participate in the development, design, execution, test for Systems Engineering focusing on Global Positioning System (GPS) Signal Processing and Anti-Jam (AJ) including FPGA development for DoD programs. ย Ideally, a candidate will have knowledge and practical experience in Hardware/Software design and implementation, System Architecture, and Verification/Validation on FPGA for real-time HW/SW applications in DoD programs. ย Must be able to work closely with customers, agencies, and across engineering disciplines. This position will be primarily focused in testing of RF systems, anti-jamming, anti-spoofing receivers. The position also offers great opportunities to advance state-of-the-art technology and create new products.

Perform System Engineering, Integration & Test (SEIT) Engineering responsibilities involving system integration, testing, data analysis, and documentation of test results, while also supporting production transitions to ensure seamless transfer of systems into manufacturing. This position is part of the broader Systems Engineering Organization within Navigation Solutions (NS) at L3Harris in Yorba Linda, CA. The role requires experience with test scripting for system integration, acceptance testing, development of special test equipment (STE), printed circuit board (PCB) design and development, and test validation techniques. Navigation Solutions products deliver advanced military GPS and other Position, Navigation, and Timing (PNT) capabilities for use across weapons, ground, airborne, maritime, and space environments.ย 

Essential Functions:

  • Develop and integrate Special Test Equipment (STE) for Functional Qualification Testing (FQT), Environmental Testing, EMI testing, and manufacturing support.
  • Perform hands-on system integration, test deployment, and execution roles.
  • Proficient in the operation and understanding of wireless/RF test equipment, such as signal analyzers, signal generators, and spectrum analyzers.
  • Develop test automation, including equipment drivers, debug tools, automation scripts, database interfaces, and reporting tools.
  • Collaborate with engineering, quality assurance, and production teams to ensure a smooth testing process and address issues discovered during Acceptance Test Procedures (ATP) and Factory Acceptance Tests (FAT).
  • Plan and set up complex production lab environments for end-to-end automation, including knowledge of lab networks and power supplies.

Qualifications:

  • Position requires a bachelor's degree in science, Technology, Engineering, or Mathematics (STEM) or related discipline with minimum 4 years or a graduate degree with a minimum of 2 years prior relevant experience. In lieu of a degree, minimum of 8 years of prior related experience
  • Active Secret security clearance.

Preferred Additional Skills:

  • Strong scripting experience (Python and NI Teststand required) and debugging skills.
  • Knowledge of system test automation execution and experience in isolating issues in both software and hardware.
  • Regularly contributes to overall test integration and automation process improvement.
  • Must work effectively in both independent and team environments.
  • Must have excellent verbal, written, and presentation communication skills.

In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas is $92,500 - $171,500.ย This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.