You will get Label AI Data – Text, Image, or Audio Tagging (High Accuracy)
Project details
You will get high-quality, human-labeled training data to power your AI systems. I specialize in text, image, and audio annotation, with attention to detail and clear communication throughout. With experience in both English and Portuguese datasets, I ensure accurate, reliable data that meets your specific labeling guidelines.
Whether you're training chatbots, content filters, or computer vision models, I’ll deliver fast, clean, and consistent work that’s NDA-friendly and adaptable to any platform.
Let’s get your data AI-ready — with precision, speed, and a human touch.
Whether you're training chatbots, content filters, or computer vision models, I’ll deliver fast, clean, and consistent work that’s NDA-friendly and adaptable to any platform.
Let’s get your data AI-ready — with precision, speed, and a human touch.
Data Entry Type
Copy Paste, Error Detection, Online Research, Word ProcessingData Entry Tool
Google Docs, Google Sheets, Microsoft Excel, Microsoft WordWhat's included
| Service Tiers |
Starter
$25
|
Standard
$50
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 5 days |
Number of Revisions | 1 | 1 | 1 |
Number of Hours of Work | 2 | 4 | 0 |
Formatting & Clean Up | |||
Graph & Table Creation | - | - | - |
Frequently asked questions
36 reviews
(36)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
AV
Alisa V.
Jul 13, 2026
Brazilian Portuguese Translation
Diomar provided accurate and timely translations of two documents into English. She worked quickly and efficiently and was an exceptional communicator throughout. The deadlines were met and the finished product was delivered exactly as needed and expected. I would recommend Diomar to anyone for their translation needs from Brazilian Portuguese. She was wonderful to work with!
PK
Praveen K.
Sep 26, 2025
US Speaker 20 Words recording
TC
Todd C.
Aug 19, 2025
Create A Social Media Account For Me
Diomar did a great job! She followed my instructions very well and completed the project quickly!
DA
David A.
Aug 8, 2025
Image Categorization Task
This job involved an image categorization task in which the worker reviewed a series of blurry, hard-to-classify images and labeled them accordingly. To support decision-making, AI-generated recommendations were provided, but the task still required careful attention to detail. Diomar did a great job working with us!
DP
Daniel P.
Apr 17, 2017
Seeking food testers (Chocolate)
Great to work with. very flexible on schedule, which was a huge help.
About Diomar
AI Data & Evaluation | User Testing | Research | Portuguese
100%
Job Success
Kingman, United States - 9:11 pm local time
Hello! I'm Diomar, an experienced remote freelancer with a long track record on Upwork dating back to the oDesk days. I specialize in AI data and evaluation, user testing, online research, and Brazilian Portuguese–English projects.
My experience includes:
✅ AI Data & Evaluation
✅ User Testing & Quality Feedback
✅ Online Research & Data Projects
✅ Brazilian Portuguese–English Translation
✅ Audio & Video Transcription
✅ Voice Recording & Data Collection
✅ Content Moderation
I'm a native Brazilian Portuguese speaker with over 25 years of experience living in the United States, giving me strong cultural and linguistic knowledge of both Brazil and the U.S.
Reliable, detail-oriented, and comfortable working independently on remote projects. Available for new projects and ready to get started.
Steps for completing your project
After purchasing the project, send requirements so Diomar can start the project.
Delivery time starts when Diomar receives requirements from you.
Diomar works on your project following the steps below.
Revisions may occur after the delivery date.
Review Instructions & Sample Data
I will study your guidelines and samples to ensure I understand your expectations.
Perform Data Labeling
I will complete the labeling work accurately based on your instructions.