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Tominelvin A.

Tominelvin A.

AI Data Labeler & Annotation Specialist (Freelance / Project-Based)

Nigeria flagLagos, Nigeria

Key Skills

Software

Scale AIScale AI
RemotasksRemotasks
AppenAppen
LabelboxLabelbox
Other
CVATCVAT

Top Subject Matter

AI training data preparation (text analytics and conversational data)
Reinforcement Learning from Human Feedback (conversational AI training)
Vision dataset annotation (image labeling)

Top Data Types

TextText
ImageImage

Top Task Types

RLHFRLHF
SegmentationSegmentation

Freelancer Overview

AI Data Labeler & Annotation Specialist (Freelance / Project-Based). Core strengths include Scale AI, Remotasks, and Appen. AI-training focus includes data types such as Text and Image and labeling workflows including Entity (NER), RLHF, and Segmentation.

Labeling Experience

CVAT

Image Labeling (from Data Labeling Expertise — Deep Dive)

CVATCVATImageImageSegmentationSegmentation

Completed image labeling work including bounding boxes and segmentation-style annotations. Assigned image categories and labeled relevant visual regions to support model learning. Ensured annotations were suitable for training and evaluation of computer vision tasks. • Bounding box and region annotation • Segmentation-style labeling • Image classification/category tagging • Annotation quality review for vision datasets

Not specified

RLHF & Content Quality Evaluation (Project-based)

OtherTextTextRLHFRLHF

Participated in RLHF workflows by rating, ranking, and refining AI-generated responses to align model behavior with human values. Conducted content safety review and assessed responses for quality, bias, and accuracy. Produced evaluation signals intended to strengthen conversational AI training outcomes. • RLHF response rating and ranking • Alignment refinement with human values • Safety and bias evaluation • Accuracy and helpfulness assessment

Not specified
Scale AI

AI Data Labeler & Annotation Specialist (Freelance / Project-Based)

Scale AIScale AITextText

Provided advanced text annotation for sentiment, intent, entities, and topics with strong attention to detail. Executed named entity recognition tasks and ensured labeled outputs were clean and well-structured for training. Supported model training pipelines by improving performance through higher-quality labeled data. • Sentiment and intent labeling • NER entity tagging • Topic/entity classification • Quality checks for label structure and consistency

Not specified

Education

S

self taught

self, Ai

self
2025 - 2026

Work History

S

self taught

Ai specialist

lagos
2025 - 2026