Karina

Key Skills

Software

Other

Telus

Top Subject Matter

Language AI/LLM (Brazilian Portuguese)

Language Data/Multilingual AI

Language Data Optimization

Top Data Types

Text

Audio

Top Task Types

Data Collection

Transcription

Freelancer Overview

AI Language Evaluator / LLM Data Annotator — RWS (Remote). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Telus. Education includes Administrative Technician, Senac RS (2023). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

AI Language Evaluator / LLM Data Annotator — RWS (Remote)

OtherText

Evaluated AI-generated responses in Brazilian Portuguese for fluency, clarity, and contextual accuracy following detailed guidelines. Analyzed grammatical, syntactic, and semantic aspects, focusing on natural language flow and error identification. Applied structured annotation to classify model outputs and provide feedback for dataset improvement. • Evaluated responses for fluency and instruction alignment • Identified grammatical and contextual inconsistencies • Maintained annotation quality for LLM training • Reviewed large-scale dataset outputs for training purposes

Evaluated AI-generated responses in Brazilian Portuguese for fluency, clarity, and contextual accuracy following detailed guidelines. Analyzed grammatical, syntactic, and semantic aspects, focusing on natural language flow and error identification. Applied structured annotation to classify model outputs and provide feedback for dataset improvement. • Evaluated responses for fluency and instruction alignment • Identified grammatical and contextual inconsistencies • Maintained annotation quality for LLM training • Reviewed large-scale dataset outputs for training purposes

2025 - Present

AI Data Annotator / Linguistic Reviewer — TELUS International (Remote)

TelusText

Reviewed multilingual AI-generated content for accuracy and coherence using structured annotation frameworks. Annotated datasets by identifying grammatical errors and contextual issues in Portuguese and English. Performed rigorous content evaluation to support AI training and model improvement workflows. • Assessed semantic and grammatical accuracy • Managed multilingual annotation projects • Supported model improvement and fine-tuning • Applied guideline-based workflows for quality assurance

Reviewed multilingual AI-generated content for accuracy and coherence using structured annotation frameworks. Annotated datasets by identifying grammatical errors and contextual issues in Portuguese and English. Performed rigorous content evaluation to support AI training and model improvement workflows. • Assessed semantic and grammatical accuracy • Managed multilingual annotation projects • Supported model improvement and fine-tuning • Applied guideline-based workflows for quality assurance

2025 - 2025

Data Analyst – Language Data Optimization — DCP Global (Remote)

OtherTextData Collection

Reviewed and validated structured language datasets for accuracy and consistency within language data workflows. Performed checks on data integrity and reliability to support quality control in digital environments. Engaged in dataset analysis tasks supporting optimization of AI language data processes. • Validated text-based datasets • Ensured data consistency and accuracy • Performed quality control checks • Supported optimization for AI data workflows

Reviewed and validated structured language datasets for accuracy and consistency within language data workflows. Performed checks on data integrity and reliability to support quality control in digital environments. Engaged in dataset analysis tasks supporting optimization of AI language data processes. • Validated text-based datasets • Ensured data consistency and accuracy • Performed quality control checks • Supported optimization for AI data workflows

2022 - 2023

Transcription Proofreader — BESESUN Information Technology (Remote)

OtherTextTranscription

Reviewed and corrected AI-generated and human transcriptions for language accuracy and natural flow. Ensured Brazilian Portuguese phrasing reflected context and meaning from audio sources. Verified alignment between transcribed text and source audio for data annotation projects. • Proofread and edited transcriptions • Approved final text for dataset inclusion • Checked context and naturalness • Ensured transcriptional accuracy for AI projects

Reviewed and corrected AI-generated and human transcriptions for language accuracy and natural flow. Ensured Brazilian Portuguese phrasing reflected context and meaning from audio sources. Verified alignment between transcribed text and source audio for data annotation projects. • Proofread and edited transcriptions • Approved final text for dataset inclusion • Checked context and naturalness • Ensured transcriptional accuracy for AI projects

2021 - 2022

Education

Work History