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Benjamin I.

AI Data Annotator (Freelance)

Nigeria flagAbuja, Nigeria

Key Skills

Software

ClickworkerClickworker
Data Annotation TechData Annotation Tech
HiveMindHiveMind
MercorMercor
Micro1
RemotasksRemotasks
Scale AIScale AI
TolokaToloka
LabelboxLabelbox
MindriftMindrift
OneFormaOneForma
TelusTelus

Top Subject Matter

AI/ML training datasets (text response evaluation, RLHF)
NLP linguistic/semantic annotation (classification, NER, sentiment)

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

Entity (NER) ClassificationEntity (NER) Classification
Bounding BoxBounding Box
ClassificationClassification
Object DetectionObject Detection
SegmentationSegmentation
Text GenerationText Generation
RLHFRLHF

Freelancer Overview

AI Data Annotator (Freelance) on Outlier. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Outlier and RWS. Education includes Bachelor of Science, Nnamdi Azikiwe University (2023). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Entity (NER) Classification.

Labeling Experience

AI Data Annotator (Freelance) on Outlier

TextText

Annotated and reviewed AI-generated text responses across diverse tasks, including creative writing, coding, mathematics, and general knowledge. Evaluated model outputs for accuracy, helpfulness, coherence, and safety using task-specific rubrics. Maintained consistent annotation quality while meeting daily and weekly output targets. • Followed complex annotation guidelines to ensure dataset consistency. • Wrote high-quality prompts and responses for RLHF-style training data. • Identified and escalated ambiguous or problematic responses to protect data integrity. • Performed quality assurance checks under volume-based workflows.

2026

AI Data Annotator (Freelance) on RWS

TextTextEntity (NER) ClassificationEntity (NER) Classification

Performed linguistic and semantic annotation for text classification, named entity recognition (NER), and sentiment analysis. Followed detailed style guides and annotation schemas to maintain high inter-annotator agreement. Reviewed and quality-checked annotated batches produced by other annotators. • Applied cultural and contextual sensitivity for multilingual annotation projects. • Ensured label consistency and adherence to predefined schemas. • Conducted batch-level QA to validate annotation correctness. • Supported schema-driven labeling workflows across multiple task types.

2025

Education

N

Nnamdi Azikiwe University

Bachelor of Science, Industrial and Production Engineering

Bachelor of Science
2017 - 2023

Work History

N

Nades Construction Company Ltd

Project Manager

Abuja
2025 - Present
E

Excelerate

Project Management Intern (Team Lead)

Abuja
2025 - 2025