AI
Mandarin Chinese
Flexible
+12
Communication
Training
Nuance
English
Reporting
Teaching
Linguistics
Infrastructure
Positioning
Recruiting
Planning
Human Data
Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world.
In this hourly-paid, fully remote contractor role, you will review AI-generated responses and/or generate language content, evaluate reasoning quality and step-by-step problem-solving, and provide expert feedback so outputs are accurate, logical, and clearly explained.
In this hourly-paid, fully remote contractor role, you will review AI-generated responses and/or generate language content, evaluate reasoning quality and step-by-step problem-solving, and provide expert feedback so outputs are accurate, logical, and clearly explained.
Spanish
Assurance
Consistency
+12
AI
Training
Quality Assurance
Accuracy
Grammar
Instruction Following
Formatting
Rubrics
Onboarding
Documentation
English
Communication
In this hourly, remote contractor role, you will work as a Spanish Quality Assurance Lead (QAL) to oversee quality, consistency, and trainer performance across Spanish AI training projects.
Spanish
Reasoning
Problem Solving
+12
Accuracy
AI
Localization
Translation
English
Nuance
Training
Linguistics
Communications
Writing
MQM
Linguistic Quality Assurance
In this hourly-paid, fully remote contractor role, you will review AI-generated responses and/or generate language content, evaluate reasoning quality and step-by-step problem-solving, and provide expert feedback so outputs are accurate, logical, and clearly explained.
Czech
AI
TTS
+12
Pronunciation
Transcription
ASR
Compliance
Editing
Segmentation
Training
Linguistics
Phonetics
Consistency
Annotation
Assurance
As a Czech Speech & Audio AI Specialist in our Global AI Community, you evaluate and validate speech AI systems—ensuring machine-generated voices sound natural, speech recognition captures intent accurately, and voice AI models learn from high-quality datasets.
Spanish
AI
Coaching
+5
Monitoring
Calibration
Voice Recording
Conversational AI
Quality Monitoring
We are looking for a Session Director to support live, supervised voice recording sessions for a multilingual conversational AI project in Spanish (Peru).
Spanish
AI
Coaching
+5
Monitoring
Calibration
Voice Recording
Conversational AI
Quality Monitoring
We are looking for a Session Director to support live, supervised voice recording sessions for a multilingual conversational AI project in Spanish (Mexico).
Engineering
AI
Training
+12
RAG
Accuracy
Research
English
Flexible
Payments
Contracts
Prompt Engineering
AI Training
Prompt Design
LLM Evaluation
Large Language Models
Bring prompt engineering expertise to AI training — design and evaluate prompts, validate model outputs, and improve LLM performance across tasks.
TTS
English
French
+10
German
Italian
Polish
Spanish
Turkish
Training
Testing
Communication
Voice Cloning
English Communication
Welcome and thank you for your interest in working with us! Image About Description: We are seeking professional male and female voice talents for 2 projects involving narrative voice recordings to support the development of text-to-speech (TTS) technology.
Spanish
AI
Adobe Audition
+7
Monitoring
Dubbing
Podcasting
Data Collection
Conversational AI
AI Products
Data Privacy
Project Hydrus is a scripted and conversational audio data collection project. We're looking for native-level speakers who can deliver natural, everyday-sounding speech — recordings that hold up whether you're reading a script or speaking spontaneously.
Spanish
AI
Adobe Audition
+7
Monitoring
Dubbing
Podcasting
Data Collection
Conversational AI
AI Products
Data Privacy
Project Hydrus is a scripted and conversational audio data collection project. We're looking for native-level speakers who can deliver natural, everyday-sounding speech — recordings that hold up whether you're reading a script or speaking spontaneously.
Spanish
AI
Adobe Audition
+7
Monitoring
Dubbing
Podcasting
Data Collection
Conversational AI
AI Products
Data Privacy
Project Hydrus is a scripted and conversational audio data collection project. We're looking for native-level speakers who can deliver natural, everyday-sounding speech — recordings that hold up whether you're reading a script or speaking spontaneously.
Spanish
AI
Adobe Audition
+8
Monitoring
Positioning
Dubbing
Podcasting
Conversational AI
Voice Recording
Mexican Spanish
Audio Recording
Welo Data is seeking native-level Spanish (Mexico) speakers for Project Hydrus, a conversational AI voice recording project.
Welo Data is seeking native-level Spanish (Latin American) speakers from Argentina for Project Hydrus, a conversational AI voice recording project.
Transcription
Annotation
Accuracy
+10
Formatting
Consistency
Training
English
Flexible
Audio Annotation
Audio Processing
Attention to Detail
Audio Content
Data Quality
We are looking to onboard Transcribers to support a range of upcoming audio processing projects. This role focuses on converting audio into accurate written text, with opportunities to contribute to annotation tasks depending on project needs.
Alignment
Portuguese
AI
+12
Sourcing
Quality Assurance
Communication
Accuracy
Annotation
Testing
Assurance
Acting
Documentation
Nuance
Linguistics
Education
We are sourcing independent Language Alignment & Resource Partners (LARPs) to provide native-level Brazilian Portuguese language vetting and QA for a specialized AI data project.
Hungarian
Tamil
Kannada
+12
Telugu
Persian
AI
Training
Education
Research
Communication
Korean
Grammar
Syntax
Morphology
Phonetics
Are you a Hungarian, Tamil, Kannada, Telugu, Basque, or Persian language expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of linguistic discovery.
Japanese
Transcription
AI
+12
Training
Flexible
Organization
Communication
Orthography
Formatting
Consistency
Writing
Subtitling
Captioning
Linguistics
Translation
Are you a Japanese speaker based in São Paulo or elsewhere in Brazil? What if your ear for Japanese could directly shape how AI listens to and understands one of the world's most complex languages?
AI
Infrastructure
Training
+11
Nuance
Transcription
Grammar
Microsoft Word
Flexible
Onboarding
AI Infrastructure
Data Evaluation
AI Products
Domain Expertise
Audio Transcription
Perle is an AI infrastructure company building expert-driven training data, evaluation systems, and applied AI products for the world's leading labs and enterprises.
Spanish
Flexible
AI
+5
Consistency
English
Communication
Data Collection
Voice Technology
We're looking for fluent native or near native ( Spanish ) speakers to take part in a scripted audio data collection project.
Help advance and enhance AI and voice technology by recording short, scripted prompts in Portuguese. We value your contribution and the collective impact of AI.
Spanish
Flexible
AI
+5
Consistency
English
Communication
Data Collection
Voice Technology
We're looking for fluent native or near native Spanish speakers to take part in a scripted audio data collection project. This is a remote, freelance opportunity that's simple, flexible, and a great way to earn extra income while contributing to the development of future AI and…
Literature
Linguistics
AI
+12
Infrastructure
Natural Language Processing
Compliance
Localization
Translation
Microsoft Teams
Marketing
Training
Culture
History
Flexible
Portuguese
Welo Global is a leader in multilingual AI, technology, and content solutions serving over 2,000 clients in 300 languages.
