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J

Johan Hernandez

Senior Search Engine Evaluator (AI Data Specialist)

FRANCE flag
Le Pontet, France
$18.00/hrExpertAppen

Key Skills

Software

AppenAppen

Top Subject Matter

Search Engine Evaluation
Generative AI
Speech Recognition

Top Data Types

TextText
AudioAudio
DocumentDocument

Top Task Types

Transcription
Evaluation Rating
RLHF

Freelancer Overview

Senior Search Engine Evaluator (AI Data Specialist). Brings 12+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Appen and Isoftstone. Education includes Master of Laws, Aix-Marseille University (2018) and Master of Laws, Panthéon-Sorbonne University (Paris 1) (2014). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Transcription.

ExpertFrenchEnglish

Labeling Experience

Appen

Senior Search Engine Evaluator (AI Data Specialist)

AppenText
In this role, I evaluated the relevance, accuracy, and quality of search engine results and Generative AI outputs. I conducted semantic analysis to determine user intent and ensured high-quality data labeling under evolving guidelines. I performed fact-checking to identify and correct AI hallucinations and factual errors in French content. • Rated and annotated French and English search engine and AI outputs • Wrote detailed justifications explaining annotation and rating decisions • Maintained high quality assurance standards and QA scores • Applied advanced guidelines and problem-solving for RLHF projects

In this role, I evaluated the relevance, accuracy, and quality of search engine results and Generative AI outputs. I conducted semantic analysis to determine user intent and ensured high-quality data labeling under evolving guidelines. I performed fact-checking to identify and correct AI hallucinations and factual errors in French content. • Rated and annotated French and English search engine and AI outputs • Wrote detailed justifications explaining annotation and rating decisions • Maintained high quality assurance standards and QA scores • Applied advanced guidelines and problem-solving for RLHF projects

2019 - Present

Transcriber & Data Annotator

AudioTranscription
I transcribed verbatim audio recordings to support the training of speech recognition models. I annotated text and performed syntax corrections to enhance Natural Language Processing (NLP) systems. I ensured linguistic accuracy and adherence to French grammar and linguistic standards. • Transcribed audio recordings for AI language model training • Annotated and labeled French text data for NLP enhancement • Performed rigorous syntax and grammar corrections • Delivered data to meet project quality and deadline requirements

I transcribed verbatim audio recordings to support the training of speech recognition models. I annotated text and performed syntax corrections to enhance Natural Language Processing (NLP) systems. I ensured linguistic accuracy and adherence to French grammar and linguistic standards. • Transcribed audio recordings for AI language model training • Annotated and labeled French text data for NLP enhancement • Performed rigorous syntax and grammar corrections • Delivered data to meet project quality and deadline requirements

2019 - 2021

Education

A

Aix-Marseille University

Master of Laws, Business Law

Master of Laws
2018 - 2018
P

Panthéon-Sorbonne University (Paris 1)

Master of Laws, Private Law

Master of Laws
2014 - 2014

Work History

D

Dispam

Logistics Associate

Le Pontet
2015 - Present