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Key Skills

Software

Appen

Toloka

Top Subject Matter

Natural Language Processing (NLP)

search relevance

RLHF chatbot evaluation

Top Data Types

Text

Image

Audio

Document

Top Task Types

Text Generation

Classification

Transcription

Freelancer Overview

Freelance Data Annotator & AI Training Specialist (Toloka AI). Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Toloka. Education includes Bachelor of Arts, Nile University of Nigeria. AI-training focus includes data types such as Text, Image, and Audio and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

Freelance Data Annotator & AI Training Specialist (Toloka AI)

TolokaAudioTranscription

This experience included audio annotation work within high-volume labeling assignments on the Toloka AI platform. You contributed labeled audio data intended to support training and optimization of AI models. Tasks were completed while following strict linguistic/annotation guidelines and quality checks. • Audio labeling for AI model training • Completing tasks with consistent formatting • Performing quality verification and error detection • Meeting KPI-driven quality requirements

2023 - Present

Freelance Data Annotator & AI Training Specialist (Toloka AI)

TolokaImageClassification

This experience included image annotation activities as part of high-volume data labeling workflows on the Toloka AI platform. Work was aimed at training and optimizing AI models using labeled visual inputs. All tasks were completed under published annotation guidelines with quality-control checks. • Image labeling for model training • Ensuring guideline adherence and consistency • Performing verification and error detection • Maintaining high platform KPI quality scores

2023 - Present

Freelance Data Annotator & AI Training Specialist (Toloka AI)

TolokaText

This experience involved performing high-volume labeling and evaluation tasks on the Toloka AI platform to support machine learning and AI model training. You rated search engine query relevance and performed NLP-oriented annotations including NER and sentiment analysis. You also participated in RLHF by grading AI chatbot responses for safety, helpfulness, and accuracy. • Search relevance evaluation using user-intent and linguistic guidelines • Named Entity Recognition (NER) labeling for text datasets • Sentiment analysis labeling for improving NLP capabilities • RLHF chatbot response grading (safety/helpfulness/accuracy)

2023 - Present

Education

Work History