For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
O
Oluwasegun L.

Oluwasegun L.

AI data trainer

Nigeria flagIkeja, Nigeria

Key Skills

Software

SuperAnnotateSuperAnnotate
Scale AIScale AI
Label StudioLabel Studio

Top Subject Matter

language - AI Training & Alignment (RLHF)
linguistic - Model Evaluation & Red-Teaming
finance - account management

Top Data Types

ImageImage
DocumentDocument
TextText

Top Task Types

ClassificationClassification
Question AnsweringQuestion Answering
Evaluation/RatingEvaluation/Rating
Computer Programming/CodingComputer Programming/Coding
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

Over the past Two years of my freelance career, I have specialized in transforming raw, unstructured datasets into high-fidelity training assets for computer vision and natural language processing models. My technical toolkit includes hands-on mastery of industry-standard annotation frameworks, where I routinely execute high-precision semantic segmentation, polygon tracing, and complex 3D bounding box configurations for autonomous systems and specialized clinical applications. By implementing rigorous multi-tier validation loops and human-in-the-loop workflows, I systematically audit labeled data to eliminate human bias, correct label drift, and enforce strict metadata compliance, ensuring that model training inputs consistently meet a targeted 98% accuracy baseline. Beyond visual datasets, I possess deep domain expertise in structured linguistic annotation and textual data engineering. Drawing heavily upon my background in formal syntax structure and semantic modeling, I construct highly accurate taxonomies for named entity recognition (NER), intent classification, and multi-turn conversational sentiment parsing. I excel at translating ambiguous real-world communication patterns into clean, machine-readable datasets by establishing rigid, edge-case-proof annotation guidelines for remote teams. This unique cross-disciplinary approach allows me to effectively bridge the gap between human language nuances and raw database architecture, accelerating model convergence for production-ready AI platforms.

Labeling Experience

RLHF Language Model Evaluation & Semantic Annotation

Computer Code ProgrammingComputer Code ProgrammingQuestion AnsweringQuestion Answering

Leveraged linguistic expertise to analyze, score, and refine Large Language Model (LLM) responses for syntax, semantics, and factual accuracy. Evaluated model outputs using Reinforcement Learning from Human Feedback (RLHF) frameworks, ensuring natural language generation adhered to strict quality, safety, and tonal guidelines.

2025 - 2025

Education

E

Ekiti state University

BSc , Computer Science

BSc
2020 - 2025

Work History

A

Ascent Tech Hub Africa

Frontend Engineer

Ikeja
2025 - Present