For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
Orlando Santana

Orlando Santana

AI / LLM Evaluator - Technology & Internet

BRAZIL flag
Rio de Janeiro, Brazil
$6.00/hrExpertAppenClickworkerGoogle Cloud Vertex AI

Key Skills

Software

AppenAppen
ClickworkerClickworker
Google Cloud Vertex AIGoogle Cloud Vertex AI
LionbridgeLionbridge
OneFormaOneForma
RemotasksRemotasks
Scale AIScale AI
TolokaToloka
TelusTelus

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
Computer Code ProgrammingComputer Code Programming
DocumentDocument
TextText

Top Label Types

Audio Recording
Classification
Evaluation Rating
Fine Tuning
Geocoding
Mapping
Prompt Response Writing SFT
Question Answering
Segmentation
Text Generation
Text Summarization
Transcription
Translation Localization

Freelancer Overview

I am an experienced AI data evaluator and annotator with over three years working on large language model evaluation, data labeling, and multilingual annotation projects. My background includes hands-on work assessing LLM outputs for quality, safety, and factual accuracy, as well as detecting hallucinations and evaluating AI-generated code in JavaScript and Python. I have contributed to the creation and validation of high-quality training datasets across text, audio, and speech domains, including transcription and TTS/ASR annotation. I am skilled in guideline-based quality assurance, comparative ranking, and providing clear, structured feedback to improve AI systems. With a strong technical foundation and advanced English proficiency, I am committed to delivering reliable, policy-compliant data for AI and NLP applications.

ExpertPortugueseEnglish

Labeling Experience

No Data Labeling experience added

Orlando S. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

No Education added yet

Orlando S. hasn’t added any Education History to their OpenTrain profile yet.

Work History

No Work History added yet

Orlando S. hasn’t added any Work History to their OpenTrain profile yet.