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Igor Lorena

Senior AI Content Specialist & Data Labeler

Angola flagLobito, Angola
Expert

Key Skills

Software

No software listed

Top Subject Matter

Financial Compliance & Risk Analysis

Top Data Types

TextText

Top Task Types

RLHFRLHF

Freelancer Overview

Senior AI Content Specialist & Data Labeler. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, N/A (2019) and Advanced Certification, N/A (2020). AI-training focus includes data types such as Text and labeling workflows including RLHF.

Expert

Labeling Experience

Senior AI Content Specialist & Data Labeler

TextRLHF
As a Senior AI Content Specialist & Data Labeler, I collaborated with leading AI labs to enhance machine learning model performance in the financial domain. I produced thousands of structured JSON records focused on intent classification for financial chatbots. My responsibilities included validating SQL queries and conducting root cause analysis on AI agent failures. • Generated and annotated high-accuracy datasets for financial LLM systems. • Conducted RLHF (Reinforcement Learning from Human Feedback) to fine-tune AI models. • Labeled complex financial dialog data and ensured compliance with project standards. • Recommended and implemented improvements in AI model frameworks, increasing reliability.

As a Senior AI Content Specialist & Data Labeler, I collaborated with leading AI labs to enhance machine learning model performance in the financial domain. I produced thousands of structured JSON records focused on intent classification for financial chatbots. My responsibilities included validating SQL queries and conducting root cause analysis on AI agent failures. • Generated and annotated high-accuracy datasets for financial LLM systems. • Conducted RLHF (Reinforcement Learning from Human Feedback) to fine-tune AI models. • Labeled complex financial dialog data and ensured compliance with project standards. • Recommended and implemented improvements in AI model frameworks, increasing reliability.

2021 - Present

Education

N

N/A

Advanced Certification, Data Science and Machine Learning Operations

Advanced Certification
2020 - 2020
N

N/A

Bachelor of Science, Economics and Data Science

Bachelor of Science
2015 - 2019

Work History

N

N/A

Quantitative Analyst / Financial Forecaster

Luanda
2019 - 2021
N

N/A

Operations & Retail Supervisor

Luanda
2017 - 2019