Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Portuguese Audio Evaluations Specialist - Freelance AI Trainer Project

Part-time

Invisible Technologies

Job Application for Portuguese Audio Evaluations Specialist - Freelance AI Trainer Project at Meridial
Back to jobs
Portuguese Audio Evaluations Specialist - Freelance AI Trainer Project
World Wide - Remote
Project Overview
We are sourcing independent Audio Evaluation Specialists for an AI benchmark evaluation project assessing advanced agentic audio models. As AI models increasingly handle complex workflows in this domain—specifically real-world customer support scenarios like flight bookings, financial services, and telecommunications—their accuracy relies entirely on robust, expert-crafted training data. The objective of this project is to autonomously produce high-quality evaluation tasks through simulated interactions, audit conversational AI outputs, and generate clean, reliable datasets to optimize model performance.
Project Deliverables & Scope
Operate autonomously to design complex evaluation frameworks and provide structured training data. Expected deliverables include:
Role-Play Scenario Execution:
Creating and executing complex, role-play-based evaluation scenarios that simulate realistic customer service interactions across travel, finance, and technical support domains.
Model Performance Auditing:
Evaluating AI model performance across standardized qualitative and quantitative metrics, focusing strictly on task completion accuracy, conversational naturalness, and audio comprehension.
Technical Metric Evaluation:
Assessing the model's basic computer programming literacy, including its understanding of JSON structures, functions, methods, and ability to reason about structured data within a support context.
Representative Dataset Generation:
Contributing to the development of diverse, high-quality audio datasets that accurately reflect real customer expectations for clarity, efficiency, and natural conversational flow.
Required Expertise
To successfully fulfill the deliverables of this project, Contractors must possess deep industry knowledge to craft realistic professional scenarios. Core skillset includes:
Demonstrable professional expertise in complex customer support, technical troubleshooting, or conversational AI evaluation.
Native or bilingual proficiency in the target language, including fluency across all language skills (reading, listening, writing, and speaking), alongside strong analytical and verbal communication skills to confidently conduct simulated customer support role-plays.
Basic computer programming literacy, specifically a comfortable understanding of JSON structures, functions, methods, and simple logic.
A meticulous, detail-oriented approach to working with structured prompts, complex evaluation rubrics, and technical guidelines.
Required Equipment:
Access to a high-quality microphone to ensure clean, reliable audio input during voice evaluations.
We offer a pay range of $6-to-$65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and high‑speed internet; company‑sponsored benefits such as health insurance and PTO do not apply.
Engagement Type:
Freelance / Independent Contractor
Workplace Type:
Remote
Apply for this job
*
indicates a required field
First Name
*
Last Name
*
Email
*
Phone
Country
*
Phone
*
Location (City)
*
Locate me
Resume/CV
*
Attach
Attach
Dropbox
Google Drive
Enter manually
Enter manually
Accepted file types: pdf, doc, docx, txt, rtf
Education
School
Select...
Degree
*
Select...
Discipline
*
Select...
Start date year
*
End date year
*
Add another
What country are you currently a resident of?
*
Select...
If you are currently based in United States, please confirm your current state of residence. If you are based outside of the United States, select "I am not located in the United States".
*
Select...
LinkedIn Profile
*
Please acknowledge that you have read and agree to our Privacy Policy.
*
Yes
By clicking "Submit Application", you agree to Invisible's
Privacy Policy
.
Submit application
Powered by
Greenhouse

Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the Portuguese Audio Evaluations Specialist - Freelance AI Trainer Project in San Francisco, CA vacancy
  • $90 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Prior RLHF , preference-labeling, model-evaluation, or structured code-review work. Pixel...  ...background. More than one completed Mercor project and availability in contiguous multi-hour... 
    Project
    Contract work
    Summer work
    Local area
    Remote work

    Mercor

    San Francisco, CA
    22 days ago
  •  ...Job Application for Vocal Audio Specialist - Freelance AI Trainer Project at Meridial Back to jobs Vocal Audio Specialist - Freelance AI Trainer...  ...-$65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location.... 
    Freelance
    Project
    Audio
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    18 days ago
  • $20 per hour

     ...Job Application for Search Engine Evaluation Specialist - Freelance AI Trainer Project at Meridial Back to jobs Search Engine Evaluation Specialist - Freelance AI Trainer Project United States of America Project Overview We are sourcing independent Search... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $11 - $30.65 per hour

     ...Responsibilities Create and execute role-play–based evaluation scenarios that simulate realistic customer service interactions...  ...diverse and representative datasets used to assess conversational audio agents. Evaluate model performance across a standardized set... 
    Freelance
    Project
    Audio
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $8 - $65 per hour

     ...Job Application for Audio Editing Specialist - Freelance AI Trainer Project at Meridial Back to jobs Audio Editing Specialist - Freelance AI Trainer...  ...suggest improvements to our prompt engineering and evaluation metrics. A bachelor’s or master’s degree in Audio... 
    Freelance
    Project
    Audio
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $8 - $65 per hour

     ...Application for Thai Voice Acting Specialist - Freelance AI Trainer Project at Meridial Back to jobs Thai...  ...clarity. Submit clean, well-labeled audio files on schedule. What you’ll...  ...the exact rate determined after evaluating your experience, expertise, and geographic... 
    Freelance
    Project
    Audio
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for Literature Specialist – Freelance AI Trainer Project at Meridial Back to jobs Literature Specialist – Freelance AI Trainer...  ...interpretation tasks; verify factual accuracy and coherence; evaluate the depth and validity of literary analysis; capture... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    24 days ago
  • $8 - $65 per hour

     ...Job Application for LaTex Specialist (Fluent in Thai) - Freelance AI Trainer Project at Meridial Back to jobs LaTex Specialist (Fluent in Thai) - Freelance...  ...improvements to our prompt engineering and evaluation metrics. A bachelor’s or master’s degree in Computer... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work

    Invisible Technologies

    San Francisco, CA
    24 days ago
  • $8 - $65 per hour

     ...Job Application for Korean-Japanese Bilingual Specialist - Freelance AI Trainer Project at Meridial Back to jobs Korean-Japanese Bilingual Specialist...  ...data. You’ll work with cutting-edge AI tools, evaluate translations and conversations between Korean and Japanese... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work
    Worldwide

    Invisible Technologies

    San Francisco, CA
    24 days ago
  • $50 - $75 per hour

     ...Job Application for Legal Counsel Specialist - Freelance AI Trainer Project at Meridial Back to jobs Legal Counsel Specialist - Freelance AI Trainer...  ...engage in substantive legal dialogue with the model, evaluate its responses for factual accuracy and analytical... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    24 days ago
  • $15 - $30 per hour

     ...Job Application for Audio Editor for Dialogue / Audio Post-Production - Freelance AI Trainer Project at Meridial Back to jobs Audio Editor for Dialogue / Audio Post...  ...improvements to our prompt engineering and evaluation metrics. A bachelor’s or master’s degree... 
    Freelance
    Project
    Audio
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    24 days ago
  •  ...eager to shape the future of AI? Large-scale language...  ..., organizational behavior, project management, marketing, entrepreneurship...  ...strategy-based exercises; evaluate logical consistency and...  ...: Business and Management Specialist – Freelance AI Trainer Project Employment type:... 
    Freelance
    Project
    Hourly pay
    Contract work
    For contractors
    Remote work

    Remote

    San Francisco, CA
    22 hours ago
  • $8 - $65 per hour

     ...eager to shape the future of AI? Large‑scale language models...  ...AI. We’re looking for HR specialists who live and breathe talent acquisition...  ...our prompt engineering and evaluation metrics. A master’s degree...  ...(Fluent in French) – AI Trainer Employment type: Contract... 
    Freelance
    Project
    Hourly pay
    Contract work
    For contractors
    Remote work

    Remote

    San Francisco, CA
    22 hours ago
  • $23 per hour

     ...the world’s fastest-growing AI companies accelerating the...  ...Analyst to support a project involving the evaluation of multiple chatbot responses...  ...advantage. Perks of Freelancing With Turing: Work at the...  ...Analyst - AI Evaluator / AI Trainer (US ONLY) Location: Data... 
    Freelance
    Project
    Contract work
    Remote work
    Flexible hours
    Weekday work

    Braintrust

    San Francisco, CA
    26 days ago
  • $8 - $65 per hour

     ...Job Application for Korean-Japanese Bilingual Specialist - Freelance AI Trainer Project at Meridial Back to jobs Korean-Japanese Bilingual Specialist...  ...data. You’ll work with cutting-edge AI tools, evaluate translations and conversations between Korean and Japanese... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work
    Worldwide

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $35 per hour

     ...Job Application for Kotlin Coding Specialist - Freelance AI Trainer Project at Meridial Back to jobs Kotlin Coding Specialist - Freelance AI Trainer...  ..., Media3) is a plus. On a typical day, you’ll evaluate AI-generated code, correct errors, implement optimized... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $20 per hour

     ...Shaping the Future of AI With Your Simplified Chinese...  ...expertise and the project. Work whenever and...  ...Ability to read, write and evaluate text fluently in...  ...Netherlands Language Specialist - Dutch Since I started...  ...platform. Because this is a freelance opportunity, we do not... 
    Freelance
    Project
    Weekly pay
    Extra income
    Contract work
    Internship
    Work from home
    Worldwide
    Flexible hours

    Outlier

    San Francisco, CA
    1 day ago
  • $8 - $30 per hour

     ...Job Application for LaTeX Specialist - Freelance AI Trainer Project at Meridial Back to jobs LaTeX Specialist - Freelance AI Trainer Project...  ...Specialists to provide their expertise for an AI benchmark evaluation project. As AI models increasingly generate complex... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...for Pavement Condition Index (PCI) Survey & Annotation Specialist – Freelance AI Trainer Project at Meridial Back to jobs Pavement Condition...  ...This project relies on your expertise to help train and evaluate next-generation AI models. In this project, you will... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for Drone Systems Specialist – Freelance AI Trainer Project at Meridial Back to jobs Drone Systems Specialist – Freelance AI Trainer...  ...across large datasets. On a typical day, you will evaluate diverse drone images and apply strict annotation... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $17 per hour

     ...technical talent with leading AI research labs. Headquartered in...  ...Dorsey . Position: Music Audio Expert - Thai Type:...  ...week Role Responsibilities Evaluate AI model output lyrics , voice...  ...independently and asynchronously to meet project deadlines. Utilize... 
    Project
    Audio
    Remote job
    Contract work
    Summer work
    Immediate start

    Mercor

    San Francisco, CA
    25 days ago
  •  ...About Perle Perle is an AI infrastructure company building...  ...expert-driven training data, evaluation systems, and applied AI products...  .... About the role Role: Freelance Remote Speech Recording...  ...with Perle. It sets out the project terms clearly, so you know exactly... 
    Freelance
    Project
    Audio
    Contract work
    Remote work
    Worldwide
    Flexible hours

    Perle

    San Francisco, CA
    22 hours ago
  •  ...for Language Alignment & Resource Partner (Brazilian Portuguese) - Freelance AI Trainer Project at Meridial Back to jobs Language Alignment & Resource...  ...consultation. The objective of this project is to evaluate, annotate, and validate data to ensure high-quality... 
    Freelance
    Project
    Portuguese language skills
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Welo Data seeks Korean bilingual audio specialists for an upcoming remote audio recording project. You will record short clips in your...  ...quality and clarity, and provide evaluations as needed. You’ll join a global community contributing to AI data with flexible hours and... 
    Project
    Audio
    Remote work
    Flexible hours

    Remote

    San Francisco, CA
    22 hours ago
  •  ...Analyze and triage GitHub issues while evaluating software test quality. About the projects: we are building LLM evaluation...  ...of the world’s fastest-growing AI companies accelerating the...  ...or automation agents. Perks of Freelancing With Turing: Work in a fully... 
    Freelance
    Project
    Contract work
    Part time
    For contractors
    Remote work

    Turing

    San Francisco, CA
    24 days ago
  •  ...Application for Language Alignment & Resource Partner (Nepali) - Freelance AI Trainer Project at Meridial Back to jobs Language Alignment &...  ...cultural consultation. The objective of this project is to evaluate, annotate, and validate data to ensure high-quality... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    24 days ago
  • $90 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...genuinely correct replications from those that merely look correct. Evaluate responsive behavior and semantic quality, ensuring proper use of... 
    Contract work
    Summer work
    Local area
    Remote work

    Mercor

    San Francisco, CA
    25 days ago
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Jack Dorsey . Position: Government / public administration Evaluator Type: Contract Compensation: $80–$120/hour Location... 
    Contract work
    Summer work
    Work at office
    Remote work

    Mercor

    San Francisco, CA
    20 days ago
  • $60 per hour

     ...Job Application for GPU Kernels AI Task Auditor - Freelance AI Trainer Project at Meridial Back to jobs GPU Kernels...  ...We are sourcing experienced technical specialists in GPU Kernels to audit tasks used to train and evaluate AI systems. The objective of this project... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    24 days ago
  • $110 per hour

     ...Compensation up to $110 USD / audio hour transcribed Additional performance-based incentives may be available Technical Requirements...  ...Rate applies to audio time transcribed for this specific project. Applications may also be considered for other Babel Audio projects... 
    Project
    Audio
    Portuguese language skills
    Hourly pay
    Contract work

    Babel Audio

    San Francisco, CA
    a month ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Portuguese Audio Evaluations Specialist - Freelance AI Trainer Project. Be the first to apply!