Meridial for AI trainers
The expert network built for frontier AI training
- Open jobs
- 489
- Median pay
- $37/hr
- Typical pay
- $5–65/hr
- 32 reviews
- 1.5
About Meridial
Meridial is the expert marketplace of Invisible Technologies, an AI company that started in 2015. It hires lawyers, doctors, engineers, coders, linguists, and other experts as independent contractors. They write and rank AI answers, red-team models, and build training environments for AI labs and companies. Invisible says it has trained over 80% of the leading AI models. Most Meridial roles are posted as "Freelance AI Trainer Project" jobs, and the same role is often posted once per country.
- Founded
- 2015 (Invisible Technologies)
- Founder
- Francis Pedraza (CEO: Matt Fitzpatrick)
- Headquarters
- San Francisco, USA
- Funding
- $100M at a valuation over $2B (2025)
- Workers
- Independent contractors
- Payment
- Payment provider, every two weeks
How hiring works
- Create a profile on meridial.ai, list your skills, and confirm your identity with your camera. You need clear written English and a computer with 8GB of RAM.
- Apply to open projects and take the skills tests. Reviewers say some tests watch your camera, microphone, and screen.
- Meridial compares your profile with its projects and contacts you when one fits. Joining does not guarantee work.
- Sign a Statement of Work that shows the rate and the expected length. Some projects also need a background check.
What workers say
Good
- You see the rate and the expected length of a project before you sign.
- Meridial says all time on a project is paid, every two weeks.
- Many open roles in law, coding, science, finance, and over 100 languages.
Watch out for
- 91% of Trustpilot reviews are 1 star. Many say they did unpaid tests and then got no work.
- Some applicants were stuck at address verification, and support replies can take weeks.
- During some tasks, Meridial can record your screen and use your camera to check that you are present.
Open jobs at Meridial
Open jobs
Pay amount
489 jobs
Civil Engineering SpecialistStructural AnalysisGeotechnical EngineeringTransportation SystemsEnvironmental EngineeringConstruction ManagementFluid Mechanics+7$6–65/hr
🇺🇸 US
Art History SpecialistVisual AnalysisIconographyCuratorial PracticeHistoriographyMaterial CultureAesthetics+6$6–65/hr
🇺🇸 US
Anthropology SpecialistCultural AnthropologyBiological AnthropologyLinguistic AnthropologyArchaeologyEthnographyEvolutionary Theory+7$6–65/hr
🇺🇸 US
Actuarial Science SpecialistProbability TheoryFinancial MathematicsLife ContingenciesRisk ModelingPension ValuationPredictive Analytics+7$6–65/hr
🇺🇸 US
Neuroscience SpecialistNeuroanatomyNeurophysiologyNeurochemistryCognitive NeuroscienceBehavioral NeuroscienceNeuroimaging+6$6–65/hr
🇺🇸 US
Medic/DoctorInternal MedicinePharmacologyPathologyClinical DiagnosticsMedical EthicsHuman Physiology+7$6–65/hr
🌍 Australia and US
Bash Coding SpecialistBashAlgorithmsData StructuresSoftware ArchitectureAsynchronous ProgrammingRESTful APIs+6$8–65/hr
🌍 India and US
HTML Coding SpecialistHTMLJavaScriptTypeScriptAlgorithmsData StructuresSoftware Architecture+5$6–65/hr
🌍 India and US
SQL Coding SpecialistSQLAlgorithmsData StructuresSoftware ArchitectureAsynchronous ProgrammingRESTful APIs+6$8–65/hr
🌍 India and US
C# Coding SpecialistC#AlgorithmsData StructuresSoftware ArchitectureAsynchronous ProgrammingRESTful APIs+6$8–65/hr
🌍 India and US
Java Coding SpecialistJavaAlgorithmsData StructuresSoftware ArchitectureAsynchronous ProgrammingRESTful APIs+6$8–65/hr
🌍 India and US
JavaScript Coding SpecialistJavaScriptAlgorithmsData StructuresSoftware ArchitectureAsynchronous ProgrammingRESTful APIs+6$8–65/hr
🌍 India and US
Python Coding SpecialistPythonAlgorithmsData StructuresSoftware ArchitectureAsynchronous ProgrammingRESTful APIs+6$8–65/hr
🌍 Worldwide
Synthetic Chemistry SpecialistOrganic SynthesisReaction MechanismsStereochemistryRetrosynthetic AnalysisOrganometallic ChemistryHeterocyclic Chemistry+7$8–65/hr
🇵🇭 Philippines
Structural Engineering SpecialistStructural AnalysisMaterials ScienceReinforced Concrete DesignSteel StructuresEarthquake EngineeringBridge Design+7$8–65/hr
🇵🇭 Philippines
Radiological HealthRadiation ProtectionDosimetryNuclear InstrumentationRadiation Detection and MeasurementRadiobiologyMedical Imaging Physics+7$8–65/hr
🇵🇭 Philippines
Radiochemistry/Nuclear Chemistry SpecialistRadioisotope ProductionRadiochemical SeparationsNuclear Decay SchemesRadiotracer MethodologiesRadiation Safety ProtocolsNuclear Fuel Cycle Chemistry+7$8–65/hr
🇵🇭 Philippines
Organic/Inorganic Chemistry SpecialistReaction MechanismsCoordination ChemistryStereoselective SynthesisCatalysisMain Group ChemistryLigand Design+7$8–65/hr
🇵🇭 Philippines
Nuclear Physics SpecialistNuclear StructureParticle InteractionsNuclear Decay ProcessesReactor PhysicsRadiation TransportNuclear Instrumentation+7$8–65/hr
🇵🇭 Philippines
Nuclear Engineering SpecialistReactor PhysicsRadiation TransportNuclear Fuel Cycle AnalysisThermal HydraulicsReactor SafetyNuclear Materials+7$8–65/hr
🇵🇭 Philippines
Mechanical Engineering SpecialistThermodynamicsFluid MechanicsHeat TransferDynamics and VibrationsSolid MechanicsControl Systems+7$8–65/hr
🇵🇭 Philippines
Materials Science/Engineering SpecialistCrystallographyThermomechanical ProcessingNanomaterialsPolymer ScienceElectronic MaterialsBiomaterials+7$8–65/hr
🇵🇭 Philippines
Environmental Science SpecialistClimate ScienceEnvironmental ChemistryHydrologyAtmospheric ScienceSoil ScienceEcology+7$8–65/hr
🇵🇭 Philippines
Electrical Engineering SpecialistCircuit DesignSignal ProcessingElectromagneticsPower SystemsControl TheoryEmbedded Systems+7$8–65/hr
🇵🇭 Philippines
Analytical Chemistry SpecialistAnalytical ChemistrySpectroscopyChromatographyElectrochemical AnalysisMass SpectrometryHPLC+7$8–65/hr
🌍 Worldwide
Drug Discovery SpecialistMedicinal ChemistryPharmacologyHigh-Throughput ScreeningTarget ValidationADMET ProfilingLead Optimization+7$8–65/hr
🇵🇭 Philippines
Sound Engineering SpecialistLive Sound ReinforcementMicrophone TechniqueSignal FlowAcousticsSound System CalibrationDante Controller+7$8–65/hr
🌍 North America and UK
Video Production SpecialistCinematographyLightingSound DesignVideo EditingVisual StorytellingAdobe Premiere Pro+6$8–65/hr
🌍 Canada, UK and US
Coding SpecialistSoftware EngineeringData StructuresAlgorithmsDatabasesSystems ProgrammingGit+7$8–65/hr
🇺🇸 US
Malayalam Language SpecialistMalayalam GrammarSyntaxMorphologySemanticsPhoneticsPragmatics+6$8–65/hr
🌍 Worldwide
Odia Language SpecialistOdia GrammarSyntaxMorphologySemanticsPhoneticsPragmatics+6$8–65/hr
🇮🇳 India
Electrical Engineering SpecialistCircuit DesignSignal ProcessingEmbedded SystemsControl TheoryElectromagneticsSemiconductor Devices+7$6–65/hr
🇺🇸 US
Danish Language SpecialistDanish GrammarSyntaxMorphologySpellingPhonologyPragmatics+6$8–65/hr
🌍 Europe and US
Web Development SpecialistReactNext.jsUI/UX DesignResponsive DesignWeb AccessibilityDesign Systems+5$8–65/hr
🇺🇸 US
Chemical Engineering SpecialistThermodynamicsReaction EngineeringProcess DesignTransport PhenomenaChemical KineticsProcess Safety+7$8–65/hr
🇺🇸 US
Environmental Physics SpecialistAtmospheric DynamicsRadiation TransferClimate ModelingFluid MechanicsGeophysical ProcessesRemote Sensing+7$8–65/hr
🇺🇸 US
Explosive Engineering SpecialistEnergetic MaterialsBlast Wave PropagationDetonation PhysicsStructural Response AnalysisExplosive Ordnance DisposalSafety Protocol Development+7$8–65/hr
🇺🇸 US
Audio Editing SpecialistSound DesignWaveform EditingNoise ReductionMixing and MasteringVocal ProcessingPro Tools+7$8–65/hr
🌍 Europe and North America
Visual & Digital Arts SpecialistIllustrationGraphic DesignDigital PaintingAnimation3D ModelingColor Theory+6$8–65/hr
🇺🇸 US
Punjabi (Gurumukhi) Language SpecialistPunjabi GrammarGurmukhi ScriptSyntaxMorphologySemanticsPhonetics+7$8–65/hr
🇮🇳 India
Kannada Language SpecialistKannada GrammarSyntaxMorphologyPhoneticsSemanticsPragmatics+5$6–65/hr
🇮🇳 India
Gujarati Language SpecialistGujarati GrammarSyntaxMorphologyPhonologySemanticsPragmatics+5$6–65/hr
🇮🇳 India
Video Editing SpecialistVideo EditingColor CorrectionMotion GraphicsSound DesignAdobe Premiere ProDaVinci Resolve+7$8–65/hr
🇺🇸 US
Turkish Language SpecialistTurkish LinguisticsPhonologyMorphologySyntaxSemanticsTranslation+7$6–65/hr
🇹🇷 Türkiye
Thai Language SpecialistThai LinguisticsPhoneticsSyntaxMorphologySemanticsPragmatics+6$6–65/hr
🇹🇭 Thailand
Bengali Language SpecialistBengaliGrammarSyntaxMorphologySemanticsPhonetics+5$6–65/hr
🌍 South Asia
Marathi Language SpecialistMarathi GrammarSyntaxMorphologyPhoneticsSemanticsPragmatics+5$6–65/hr
🇮🇳 India
Tamil Language SpecialistTamil LinguisticsPhoneticsSyntaxMorphologySemanticsPragmatics+6$6–65/hr
🇮🇳 India
Telugu Language SpecialistTeluguPhoneticsSyntaxMorphologySemanticsPragmatics+5$6–65/hr
🇮🇳 India
Vietnamese Language SpecialistVietnamesePhonologyOrthographySyntaxSemanticsPragmatics+6$6–65/hr
🇻🇳 Vietnam
No jobs match these filters. Try a different search or clear the filters.
Open jobs by category
Languages221 open jobs
STEM85 open jobs
Coding57 open jobs
Voice & Video52 open jobs
Generalist31 open jobs
Medical19 open jobs
Finance11 open jobs
Creative10 open jobs
Legal3 open jobs
Hourly pay of open jobs
- Under $2527 open jobs
- $25–50445 open jobs
- $50–7513 open jobs
- $75–1001 open jobs
- $100–1502 open jobs
- $150–2000 open jobs
- $200 or more1 open jobs
Frequently Asked Questions about Meridial
How much does Meridial pay?
Meridial has 489 open jobs on this site. The median pay is $37/hr, and most jobs pay $5–65/hr. Each job page shows its own rate.
How does Meridial pay workers?
Meridial pays every two weeks to the payment account in your profile, through a third-party payment provider. Each project has a Statement of Work with the rate, set before you start, and Meridial says all time on a project is paid. Many job posts give a range such as $8 to $65 an hour, and the exact rate depends on your experience, skills, and country. To pay you, Meridial can ask for a government ID and a tax ID. You pay your own taxes.
How do I get hired at Meridial?
1. Create a profile on meridial.ai, list your skills, and confirm your identity with your camera. You need clear written English and a computer with 8GB of RAM. 2. Apply to open projects and take the skills tests. Reviewers say some tests watch your camera, microphone, and screen. 3. Meridial compares your profile with its projects and contacts you when one fits. Joining does not guarantee work. 4. Sign a Statement of Work that shows the rate and the expected length. Some projects also need a background check.
Is Meridial legit?
Meridial is a real company. It belongs to Invisible Technologies, a San Francisco company founded in 2015 that raised $100M at a valuation over $2B in 2025. Invisible's customers include Microsoft and AWS. Meridial says it pays every two weeks. But it has 1.5 of 5 on Trustpilot from 32 reviews, and many reviewers say they did unpaid tests and then got no work.
How are Meridial and Invisible Technologies related?
Meridial is the expert marketplace of Invisible Technologies. Invisible sells AI training data and AI software to companies, and Meridial finds the experts who do the work. You work as an independent contractor, not as an employee of Meridial or Invisible. Meridial job posts are on Greenhouse under the name "agency", and some emails come from the invisible.email domain.
What is an AI trainer job?
AI trainers help companies improve AI models. You review and rate model answers, write example answers, find mistakes, or record voice and video data. Experts in law, medicine, coding, languages, and other fields teach models how a professional thinks. Most of this work is remote, flexible, and paid by the hour.
Are AI trainer jobs remote?
Yes. Every job on this site is remote, and most have flexible hours. Some jobs accept people from certain countries only, so check the 🌍 location on each job before you apply.
What skills or degrees do I need?
It depends on the job. Generalist jobs need clear writing and attention to detail. Expert jobs usually ask for a degree or work experience in the field, such as a law license or medical training. Language jobs need native or fluent skill in that language. Coding jobs need real programming experience.