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Anna Sokur

Anna Sokur

AI Trainer (RLHF)

POLAND flag
Warsaw, Poland
$30.00/hrIntermediateInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Label Types

Classification
Evaluation Rating
Prompt Response Writing SFT
RLHF
Segmentation
Text Summarization
Translation Localization

Freelancer Overview

I have hands-on experience in AI data labeling and training data workflows, specializing in evaluating and improving large language models (LLMs) using RLHF techniques. My background includes assessing AI outputs for quality, factual accuracy, safety, and adherence to guidelines, as well as annotating hallucinations and policy violations. I create structured feedback, high-quality reference answers, and multilingual rewrites (EN, UKR, PL, RU) to ensure linguistic accuracy and consistency. I’ve worked on building and optimizing RAG knowledge bases, developing prompt QA systems, and designing AI agents for sales and HR tasks. My expertise in practical AI workflows, content annotation, and cross-functional collaboration enables me to deliver reliable, high-quality training data that drives measurable improvements in AI model performance and user experience.

IntermediateEnglishUkrainianPolishRussian

Labeling Experience

LLM AI Evaluator & LLM AI Trainer (RLHF)

Internal Proprietary ToolingTextRLHF
As an LLM AI Evaluator & Trainer (RLHF), I evaluated AI responses for quality, factual accuracy, safety, and instruction-following using structured criteria. I performed RLHF-style evaluation by comparing and ranking multiple AI responses, providing structured feedback to inform model improvement. My work included labeling hallucinations, logical errors, and policy violations, as well as creating high-quality reference answers for model iteration. • Evaluated and ranked LLM outputs for preference and alignment. • Annotated safety and factuality concerns in model responses. • Provided reference/gold standard answers for reinforcement learning. • Conducted multilingual parallel translations and style consistency reviews across languages.

As an LLM AI Evaluator & Trainer (RLHF), I evaluated AI responses for quality, factual accuracy, safety, and instruction-following using structured criteria. I performed RLHF-style evaluation by comparing and ranking multiple AI responses, providing structured feedback to inform model improvement. My work included labeling hallucinations, logical errors, and policy violations, as well as creating high-quality reference answers for model iteration. • Evaluated and ranked LLM outputs for preference and alignment. • Annotated safety and factuality concerns in model responses. • Provided reference/gold standard answers for reinforcement learning. • Conducted multilingual parallel translations and style consistency reviews across languages.

2024

Education

A

Akademia Ekonomiczno-Humanistyczna w Warszawie

Master of Science, Business Management

Master of Science
2021 - 2023
A

Akademia Ekonomiczno-Humanistyczna w Warszawie

Bachelor of Arts, Political Science, Public Communication and Public Relations

Bachelor of Arts
2018 - 2021

Work History

A

AI SalesDriver

Marketing Growth Product Manager

Warsaw
2025 - Present
U

U-in Marketing

Senior Marketing Specialist

Warsaw
2022 - 2025