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Oscar Rivas Sossa

Oscar Rivas Sossa

Data Annotator - AI Training & Evaluation

BOLIVIA flag
Cochabamba, Bolivia
$10.00/hrEntry LevelCVATLabelboxRoboflow

Key Skills

Software

CVATCVAT
LabelboxLabelbox
RoboflowRoboflow
TolokaToloka

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
DocumentDocument
ImageImage
TextText
VideoVideo

Top Label Types

Audio Recording
Bounding Box
Emotion Recognition
Evaluation Rating

Freelancer Overview

I am a native Spanish speaker from Bolivia with a strong focus on data labeling, text annotation, content classification, and AI response evaluation. I have hands-on experience gained through self-training and practical tasks on various platforms, where I consistently follow detailed guidelines and ensure high-quality, accurate results. My background includes reviewing AI-generated responses for clarity and usefulness, working on basic audio tasks such as transcription and validation, and performing quality assurance checks. I am highly detail-oriented, responsible with deadlines, and motivated to contribute to the improvement of AI systems through careful and consistent human evaluation. I am eager to expand my experience in AI training data and support projects that require precision and reliability.

Entry LevelEnglishSpanish

Labeling Experience

No Data Labeling experience added

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

Education

S

Self-Directed Technical Training.

Technical Certification, Advanced Image Segmentation & Annotation in Roboflow.

Technical Certification
2024 - 2025
I

Independent Data Engineering Studies

Technical Specialization in Data Management., SQL for Data Analysis & Large Scale Databases

Technical Specialization in Data Management.
2024 - 2025

Work History

F

Freelancer

Data analyst

Cochabamba
2025 - 2025
R

Remoto Jobs

QA (Quality Assurance)

Cochabamba
2024 - 2025