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Essa C.

Essa C.

AI Data Annotator & RLHF Specialist

Poland flagBorów, Poland

Key Skills

Software

No software listed

Top Subject Matter

My strongest subject matter areas are General Knowledge
Content Safety
Technology. I excel in fact-checking broad queries
evaluating conversational logic
assessing alignment with safety guidelines across diverse digital content.

Top Data Types

ImageImage
TextText
AudioAudio

Top Task Types

Text GenerationText Generation
ClassificationClassification
Entity (NER) ClassificationEntity (NER) Classification
Question AnsweringQuestion Answering
RLHFRLHF
Fine-tuningFine-tuning
TranscriptionTranscription
Data CollectionData Collection

Freelancer Overview

I have extensive experience in AI data training and annotation on platforms such as Outlier and Welocalize. My core expertise involves Reinforcement Learning From Human Feedback (RLHF), evaluating LLM outputs for factual accuracy, safety, and coherence, as well as prompt generation and quality rating of search results. I am accustomed to strict quality assurance audits and consistently deliver high-quality, reliable datasets for machine learning applications.

Labeling Experience

AI Response Evaluation & RLHF (Welocalize)

TextTextRLHFRLHF

Performed detailed text rating and content evaluation to train and refine AI algorithms. Assessed response relevance, analyzed user intent, and identified model hallucinations or unsafe content. Verified data integrity and provided structured feedback to improve the overall accuracy and performance of the model's response.

2026 - 2026

AI Response Evaluation & RLHF (Outlier)

TextTextRLHFRLHF

Evaluated and optimized Large Language Model (LLM) outputs through Reinforcement Learning from Human Feedback (RLHF). Maintained strict quality standards while auditing responses for factual accuracy, safety compliance, and logical coherence. Generated high-quality prompts and responses to fine-tune model behavior according to detailed project guidelines.

2026 - 2026

Education

T

Technikum Strzelin

Technical High School Diploma, CNC Mechanics

Technical High School Diploma
2023 - 2027

Work History

O

Outlier

AI Data Annotator

Location not specified
Not specified