Open to opportunities

Ronny Abreu

@ronnyabreu

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Results-driven AI Trainer specializing in LLM fine-tuning.

Singapore

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What I'm looking for

I am looking for opportunities that foster innovation, collaboration, and ethical AI development.

As a dedicated Python Developer and AI Training Specialist, I have honed my skills in fine-tuning large language models (LLMs) to enhance chatbot accuracy and mitigate bias across various sectors. My experience includes boosting chatbot performance by 35% through RLHF-driven GPT-4 fine-tuning, demonstrating my commitment to delivering measurable impact in tech and AI startups.

At Global AI Research Lab, I led RLHF workflows across five countries, ensuring our outputs aligned with cultural and legal norms, such as the EU AI Act and US FTC guidelines. My efforts in reducing bias in hiring AI tools by 28% using fairness metrics like SHAP and LIME reflect my dedication to ethical AI practices. I am passionate about leveraging AI to create solutions that are both effective and responsible.

Experience

Work history, roles, and key accomplishments

AI Training Specialist

Global AI Research Lab

Mar 2022 - Nov 2024 (2 years 8 months)

Fine-tuned GPT-4 and Llama 2 for customer support chatbots, improving response accuracy by 35% for 10+ languages. Led RLHF workflows with annotators across 5 countries to align outputs with cultural/legal norms (EU AI Act, US FTC guidelines).

LLaMA 2 AI Training PyTorch TensorFlow

Junior AI Data Trainer

Tech Innovations Inc.

Aug 2019 - Jan 2022 (2 years 5 months)

Trained multilingual NLP models (English/Mandarin) for e-commerce sentiment analysis, deployed in SEA and EU markets. Built data annotation pipelines for computer vision models, cutting labeling costs by 40%.

NLP Data Annotation Computer Vision Machine Learning Python

Education

Degrees, certifications, and relevant coursework

National University of Singapore

Bachelor of Computer Science, Computer Science

Activities and societies: Open Source Contributions (React, Vue plugins), Tech Blogging (Medium, Dev.to), Competitive Coding (LeetCode, HackerRank), Gaming & VR Development (Unity, Three.js)

Studied computer science fundamentals, including programming, data structures, and algorithms. Gained expertise in machine learning and artificial intelligence.