804 test jobs at 280 companies in Modesto, CA

1d
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Test Req
Pleasanton, California, United States
OnsiteFull Time
ProSomnus
ProSomnusOTC Markets: OSAPQ: Manufactures precision medical devices for treating obstructive sleep apnea.
TEST
1mo
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Test Engineer
Byron, California, United States
$118k-$190k/yr OnsiteFull Time
Elroy Air
Elroy Air: Builds autonomous vertical takeoff and landing aircraft for cargo logistics.
2+ YOEBachelor's in engineering, 2+ years test experience in hardware verification or lab testing, hands-on with propulsion/battery/EV systems, DAQ (National Instruments, Dewesoft), proficiency with Python, MATLAB, or LabVIEW, and strong troubleshooting and reporting skills.
National Instruments, Dewesoft, Python, MATLAB, LabVIEW, CAD, DAQ, HIL
2mo
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Sr. Flight Test Engineer
Mountain View or San Martin
$190k-$260k/yr OnsiteFull Time
Reliable Robotics
Reliable Robotics: Develops autonomous flight systems for commercial and cargo aviation.
7+ YOEBachelor's in Mechanical/Electrical/Aerospace or related; 7+ years experimental flight test; test planning/leadership; aeronautical radio calls; risk assessments.
1mo
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Assembly & Test Technician II
Livermore, California, United States
$22-$29/hr OnsiteFull Time
FormFactor
FormFactorNASDAQ: FORM: Manufacturer of semiconductor test and measurement equipment.
1+ YOE1-2 years related experience; cleanroom and ESD protocol familiarity; mechanical assembly, precision handling, electrical testing, microscope inspection, SPC and data entry skills; ability to follow work instructions and lift light materials.
Data Acquisition Software, Microsoft Excel, Statistical Process Control (SPC), Metrology Equipment, microscopes, dial indicators, digital meters
3mo
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Communications Systems Test Engineer
Livermore, California, United States
$190k-$215k/yr OnsiteFull Time
Aalyria
Aalyria: Provides laser communications and networking platforms for aerospace.
2+ YOEClearable or eligible for clearance; degree in Electrical/ Optical Engineering; 2-5 years lab experience with high-speed comm systems; MATLAB/Python skills; experience with high-speed test equipment; knowledge of coherent optical systems.
Bit Error Rate Testers, Arbitrary Waveform Generators, Oscilloscopes, Optical Spectrum Analyzers, Optical Power Meters, Variable Optical Attenuators, Polarization Controllers, Matlab, Python
4w
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Seasonal Test Stand Lead - Ripon
Ripon, California, United States
$23/hr FieldMultiple Commitments Available
The Wine Group
The Wine Group: Produces and sells a diverse range of wine brands.
Lead or supervisory experience preferred; ability to lift up to 50 lbs, work outdoors in varying weather, read/write/speak English, be 18+ and flexible with graveyard shifts during the July–November harvest season.
2mo
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UAV Build & Test Technician
San Leandro or Merced
$90k-$110k/yr OnsiteFull Time
Grid Aero
Grid Aero: Independent aerospace focused on autonomous aviation systems.
5+ YOEA.S. or B.S. in Mechanical/Electronics Technology, Aviation Maintenance, or related field; or 5+ years in R&D technician roles; strong mechanical and electrical aptitude.
Manual Lathe, Mill, Band Saw, Soldering, Crimping, Rivet Guns, Bucking Bars, Dial Indicators, Calipers, Schematic Reading
1mo
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Vehicle Test Driver - Mountain View, CA
Fremont or Mountain View or North America
$25-$27/hr FieldContract
Applus IDIADA
Applus IDIADABolsa de Madrid: APPS: Engineering and testing services for the global automotive industry.
7+ YOEHigh school diploma, 7+ years licensed driving experience, current unexpired driver’s license and clean driving record, ADAS experience preferred, ability to lift up to 50 lbs, flexible schedule and weekend availability, experience with data acquisition systems.
Data Acquisition system
1mo
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Principal Air Quality Engineer (Source Test)
San Francisco or Alameda County or Contra Costa County or Marin County or San Mateo County or Santa Clara County or Napa County or Solano County or Sonoma County or California
$145k-$177k/yr HybridFull Time
Bay Area Air Quality Management District
Bay Area Air Quality Management District: Regulates stationary air pollution sources to protect public health.
4+ YOEBachelor's degree in engineering (environmental/chemical/mechanical/petroleum) or closely related field and four years of air quality/environmental engineering experience; experience with source testing, permit review, rule development, emissions calculations, QA/QC, and supervising staff; valid California driver's license; pass physical/lift test.
Continuous Emission Monitoring System (CEMS)
1d
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Cleared Member/Senior R&D Systems Engineer - W87-1 Flight Test Vehicle System Engineer, Onsite
Livermore, California, United States
$122k-$238k/yr OnsiteFull Time
Sandia National Laboratories
Sandia National Laboratories: Conducts science and engineering research for national security.
Bachelor's degree or equivalent, active DOE Q clearance required, systems engineering experience with integration, test, and troubleshooting for flight test vehicles, strong communication and technical skills.
19h
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Cleared Member/Senior R&D Systems Engineer - W87-1 Flight Test Vehicle System Engineer, Onsite
Livermore, California, United States
$122k-$238k/yr OnsiteFull Time
Sandia National Laboratories
Sandia National Laboratories: Federal research and development laboratory for national security.
Bachelor's in a relevant discipline or equivalent experience; active DOE Q clearance required to start; systems engineering, integration, test, instrumentation, requirements management, and basic programming experience; able to work onsite and travel up to 25%.
3mo
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Testing Initiative Coordinator
Modesto or Stockton or Santa Rosa
$69k-$95k/yr HybridFull Time
California Rural Legal Assistance
California Rural Legal Assistance: Providing free legal services to low-income rural California residents.
2+ YOETwo+ years in testing coordination or related civil rights investigations; strong organizational and recruitment skills; data handling and testing ethics awareness; bilingual in English and Spanish preferred.
1w
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Construction Materials Testing Technician Level I/II
Hayward or Stockton or Fresno
$25-$33/hr FieldFull Time
Kleinfelder
Kleinfelder: Professional engineering, design, and construction management services.
1+ YOEAbility to perform field and lab construction materials testing, lift up to 50+ lbs, operate testing equipment, hold multiple field certifications (ACI, Caltrans, NICET, etc.), and travel throughout Northern California.
ultrasonic non-destructive testing machine, concrete cylinder press
3w
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ERS-NETA Electrical Testing Technician - Pleasanton, CA
Pleasanton, California, United States
FieldFull Time
Vertiv
VertivNYSE: VRT: Provides critical power and cooling for data centers.
3+ YOEPerform testing, troubleshooting, and inspection of electrical power distribution and switchgear through 15 kV; NETA exam passed, knowledge of NEC/OSHA/NFPA, strong computer skills, valid driver’s license, able to lift heavy test equipment, and available for significant travel.
Microsoft Word, Internet
3w
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Field Engineer
Pleasanton, California, United States
$60-$80/hr FieldFull Time
ABM Industries
ABM IndustriesNYSE: ABM: Provides integrated facility, engineering, and infrastructure management solutions.
5+ YOE5+ years electrical testing/commissioning experience, ability to perform independent testing and troubleshooting, read electrical diagrams, interpret test results, prepare technical reports, valid driver's license, and ability to travel up to 75%.
3w
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Senior Testing Engineer (19024)
Pleasanton, California, United States
$137k-$147k/yr OnsiteFull Time
TÜV Rheinland
TÜV Rheinland: Global provider of testing, inspection, and certification services.
3+ YOEBachelor’s in Computer or Electronics Engineering and 3+ years evaluating products to CB Scheme, CE, GS, IEC, EN, UL, CSA and BIS standards; ability to prepare test proposals and document results.
1w
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Paraprofessional ECE I/II at Monticello (7 hrs)
Tracy, California, United States
OnsiteFull Time
Jefferson School District
Jefferson School District: Operates public elementary and middle schools in Tracy, California.
Pass district proficiency test required; attach A.A. degree or transcript to waive test; responsibilities in supporting student learning and monitoring progress.
2w
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Substitute Program Leader
Lodi, California, United States
$20/hr OnsitePart Time
Think Together
Think Together: Providing high-quality after-school and early learning educational programs.
High school diploma/GED, experience with children, availability M–F, pass Live Scan background check, TB test, and advanced math/English testing; 48 semester/60 quarter units or pass Instructional Aide Test may be required.
1mo
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Local Delivery Driver - CDL A
Cheektowaga or Stockton or San Francisco or Los Angeles or United States
$29/hr OnsiteFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Global food and beverage manufacturer and distributor.
Must be 21+, hold a valid U.S. CDL A (non-excepted interstate status where applicable), pass DOT physical, DOT road test, drug test and physical capabilities test; able to lift 20-45 lb repeatedly and perform merchandising and invoice settlement.
pallet jacks, hand trucks
2w
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Site Testing Coordinator- KES 2026-2027 School Year (Internal Candidates Only)
Keyes, California, United States
$678/yr OnsitePart Time
Keyes Union School District
Keyes Union School District: Operates public elementary, middle, and charter schools in California.
Part-time, school-year coordinator role for 2026-2027; internal candidates only; stipend position supporting site testing activities.