Daniel O.

Key Skills

Software

Scale AI

Other

Top Subject Matter

LLM fine-tuning and reinforcement learning from human feedback (RLHF) for multilingual instruction

Safety Domain Expertise

and helpfulness

Top Data Types

Text

Image

Top Task Types

RLHF

Prompt + Response Writing (SFT)

Data Collection

Freelancer Overview

Senior AI Training Specialist — NeuralBridge AI Ltd.. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Scale AI. Education includes Bachelor of Science, University of Lagos (2018). AI-training focus includes data types such as Text and labeling workflows including RLHF, Prompt + Response Writing (SFT), and Data Collection.

Labeling Experience

Senior AI Training Specialist — NeuralBridge AI Ltd.

TextRLHF

Served as a Senior AI Training Specialist leading large-scale annotation work for LLM fine-tuning and RLHF data pipelines. Designed and maintained labeling guidelines for tone, factuality, safety, and instruction-following for multilingual models. Monitored quality through inter-annotator agreement analysis and built internal QA tooling to reduce annotation errors and improve helpfulness metrics. • Led 12 annotators producing 50,000+ labeled data points per month • Conducted IAA with Cohen's Kappa scores above 0.82 • Developed an internal QA dashboard reducing annotation error rates by 23% in the first quarter • Collaborated with ML engineers to flag systematic model errors, improving helpfulness metrics by 17%

2022 - Present

Data Annotation Specialist — ScaleTech Data Services

Scale AITextPrompt + Response Writing (SFT)

Worked as a Data Annotation Specialist performing multimodal dataset annotation and review for NLP, computer vision, and speech recognition clients. Specialized in ranking model outputs and writing high-quality reference responses for instruction tuning datasets. Supported labeling consistency through mentorship and weekly calibration sessions while contributing to safety red-teaming efforts. • Annotated and reviewed text, audio, and image datasets for client projects • Produced instruction-tuning reference responses and ranked model outputs • Mentored 8 junior annotators and ran weekly calibration sessions • Identified harmful outputs during safety red-teaming and proposed mitigation strategies

2020 - 2021

Research Assistant — NLP Lab, University of Lagos

OtherTextData Collection

Assisted NLP research focused on low-resource language modeling for Yoruba and Igbo by curating and cleaning large corpora. Supported creation of evaluation benchmarks for sentiment analysis and named entity recognition in Nigerian languages. Contributed research support activities such as dataset preparation and benchmark-oriented annotation preparation. • Curated and cleaned 200K+ sentence pairs • Assisted in building sentiment analysis and NER evaluation benchmarks • Supported cross-lingual transfer learning research for Yoruba and Igbo • Helped prepare language modeling resources for downstream training and evaluation

2018 - 2020

Education

Work History