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R

Rachel Bartkowiak

Data Annotation Specialist

Canada flagMedicine Hat, Canada
$18.00/hrExpertDon T Disclose

Key Skills

Software

Don't disclose

Top Subject Matter

AI content quality
LLM evaluation
policy compliance

Top Data Types

TextText
AudioAudio
DocumentDocument

Top Task Types

Emotion RecognitionEmotion Recognition
Bounding BoxBounding Box
ClassificationClassification
Text GenerationText Generation
Text SummarizationText Summarization
Evaluation/RatingEvaluation/Rating
TranscriptionTranscription
Red TeamingRed Teaming
Fine-tuningFine-tuning

Freelancer Overview

Data Annotation Specialist. Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Don't disclose. Education includes Master of Arts, Athabasca University (2025) and Bachelor of Arts, Athabasca University (2025). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Emotion Recognition.

ExpertEnglish

Labeling Experience

Data Annotation Specialist

Text
As a Data Annotation Specialist at Innodata Tech, I evaluated both AI- and human-generated text for accuracy, reasoning consistency, policy compliance, and clarity. I rated AI outputs using structured rubrics, providing detailed justifications to enhance reinforcement learning cycles. My responsibilities included identifying hallucinations, logical gaps, bias risks, and formatting inconsistencies. • Collaborated with project leads to refine evaluation criteria • Maintained high-quality training datasets for model improvement • Conducted fact-checking and quality assurance on large volumes of data • Used internal/proprietary tools for annotation workflows

As a Data Annotation Specialist at Innodata Tech, I evaluated both AI- and human-generated text for accuracy, reasoning consistency, policy compliance, and clarity. I rated AI outputs using structured rubrics, providing detailed justifications to enhance reinforcement learning cycles. My responsibilities included identifying hallucinations, logical gaps, bias risks, and formatting inconsistencies. • Collaborated with project leads to refine evaluation criteria • Maintained high-quality training datasets for model improvement • Conducted fact-checking and quality assurance on large volumes of data • Used internal/proprietary tools for annotation workflows

2025 - Present

Writer / Editor / AI Evaluator

Text
As a Writer/Editor/AI Evaluator at DataAnnotation, I reviewed and corrected AI-generated responses to improve alignment, reasoning depth, and stylistic coherence. I provided comprehensive feedback on model behavior, including safety vulnerabilities and ambiguous edge cases. I conducted structured comparative evaluations to assess quality differentials between model outputs. • Developed documentation and workflow tools for consistency • Designed test prompts for challenging model reasoning • Contributed to model improvement through continuous feedback • Utilized internal/proprietary annotation platforms for evaluation tasks

As a Writer/Editor/AI Evaluator at DataAnnotation, I reviewed and corrected AI-generated responses to improve alignment, reasoning depth, and stylistic coherence. I provided comprehensive feedback on model behavior, including safety vulnerabilities and ambiguous edge cases. I conducted structured comparative evaluations to assess quality differentials between model outputs. • Developed documentation and workflow tools for consistency • Designed test prompts for challenging model reasoning • Contributed to model improvement through continuous feedback • Utilized internal/proprietary annotation platforms for evaluation tasks

2023 - Present

English Language Annotator

Don T DiscloseAudioEmotion Recognition
In my position as an English Language Annotator for TransPerfect, I classified and labeled structured and unstructured English-language audio data to support machine learning model training. I annotated audio samples for tone, intent, and emotional nuance to improve model recognition capabilities. I maintained KPI compliance and adapted to shifting project scopes and requirements. • Reported recurring anomalies and documentation inconsistencies • Worked under strict quality assurance guidelines • Used proprietary or undisclosed annotation software • Supported process improvements by offering feedback to project managers

In my position as an English Language Annotator for TransPerfect, I classified and labeled structured and unstructured English-language audio data to support machine learning model training. I annotated audio samples for tone, intent, and emotional nuance to improve model recognition capabilities. I maintained KPI compliance and adapted to shifting project scopes and requirements. • Reported recurring anomalies and documentation inconsistencies • Worked under strict quality assurance guidelines • Used proprietary or undisclosed annotation software • Supported process improvements by offering feedback to project managers

2025 - 2025

Education

A

Athabasca University

Bachelor of Arts, English

Bachelor of Arts
2021 - 2025
N

New York Film Academy

Certificate in Cinematography, Cinematography

Certificate in Cinematography
2017 - 2018

Work History

R

Riipen Labs

Communications lead

Medicine Hat
2026 - 2026
M

Medicine Hat School of Performing Arts

Drama Teacher and Production Director

Medicine Hat
2017 - 2023