Mariam N.

Key Skills

Software

Toloka

Clickworker

Mindrift

OneForma

Top Subject Matter

Natural language processing (NLP)

search relevance

content evaluation

Top Data Types

Text

Audio

Image

Document

Top Task Types

Classification

Data Collection

Freelancer Overview

Freelance Data Annotator & AI Trainer (Toloka) - Text/Search Relevance Annotation. Brings 12+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Toloka, Clickworker, and Mindrift. Education includes Bachelor of Commerce (Accounting), Makerere University Business School (2018) and Uganda Advanced Certificate of Education (U.A.C.E), Kibuli Secondary School (2013). AI-training focus includes data types such as Text and Audio and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

Multilingual Data Annotator (OneForma) - Speech/Text/Visual Collection & Annotation

OneFormaAudioData Collection

Participated in multilingual data collection and annotation to build training datasets for machine learning. Annotated speech, text, and visual data according to project requirements and quality standards. Ensured consistent adherence to guidelines to maintain dataset reliability and usability for downstream training.•Collected and annotated multilingual speech data for ML applications•Performed additional labeling across text and visual modalities as required•Verified annotation quality against project-specific standards•Ensured guideline compliance to support usable, model-ready datasets

2020 - Present

AI Trainer/Data Evaluator (Mindrift) - LLM Response Evaluation & Ranking

MindriftText

Assisted in training large language models by performing response evaluation and response ranking. Assessed AI-generated outputs for relevance, factual accuracy, clarity, and overall quality. Provided human feedback to enhance conversational performance and reduce errors in generated responses.•Evaluated and rated LLM responses against task criteria•Performed preference/relevance ranking for response selection•Reviewed outputs for factuality and clarity before feedback•Contributed structured human judgments to support model training workflows

2020 - Present

Freelance Data Annotator & AI Trainer (Clickworker) - Categorization & Sentiment/Content Evaluation

ClickworkerText

Conducted data categorization, sentiment analysis, and content evaluation to support AI system development. Performed structured labeling and validation to ensure data quality and reliability. Maintained consistent performance ratings across projects while meeting productivity and compliance expectations.•Labeled and categorized textual data for model training•Performed sentiment-focused content evaluation and review•Validated labeled outputs for correctness against instructions•Achieved consistent accuracy and quality ratings across multiple Clickworker projects

2020 - Present

Freelance Data Annotator & AI Trainer (Toloka) - Text/Search Relevance Annotation

TolokaTextClassification

Performed text annotation and search relevance labeling to support AI model training and dataset creation. Followed detailed annotation instructions to ensure consistency, accuracy, and guideline compliance. Validated and refined labeled outputs to improve model training quality and effectiveness.•Annotated text according to platform-specific schemas and relevance standards•Evaluated dataset quality to boost machine learning accuracy•Maintained high acceptance rates by meeting strict guideline and deadline requirements•Completed large-scale microtasks with consistent quality scoring

2020 - Present

Education

Work History