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E

Efejevwe Eferurhobo

Senior AI Content Specialist & Strategic Annotator

Nigeria flagEwu, Nigeria
$25.00/hrExpertDon T Disclose

Key Skills

Software

Don't disclose

Top Subject Matter

AI-generated text
conversational AI
persona synthesis

Top Data Types

TextText
VideoVideo
ImageImage

Top Task Types

RLHFRLHF
RelationshipRelationship
Object DetectionObject Detection

Freelancer Overview

Senior AI Content Specialist & Strategic Annotator. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, Ambrose Alli University Ekpoma and Professional Certificate, Google Cloud. AI-training focus includes data types such as Text, Video, and Image and labeling workflows including RLHF, Relationship, and Object Detection.

ExpertEnglish

Labeling Experience

Senior AI Content Specialist & Strategic Annotator

TextRLHF
As a Senior AI Content Specialist & Strategic Annotator, I conducted large-scale text data annotation and labeling to support reinforcement learning from human feedback (RLHF) and supervised fine-tuning (SFT) projects. My duties included transforming and rating AI-generated responses, designing prompts for persona synthesis, and conducting rigorous error and hallucination identification audits. I applied standardized taxonomies and detailed rubrics to ensure data quality for downstream model development. • Synthesized, categorized, and labeled over 100,000 complex text data points for AI/LLM training. • Audited and error-checked output data for factual accuracy, consistency, and bias reduction. • Designed prompt templates and performed creative persona-based content rewriting tasks. • Executed deep fact-checking, ambiguity flagging, and model hallucination detection.

As a Senior AI Content Specialist & Strategic Annotator, I conducted large-scale text data annotation and labeling to support reinforcement learning from human feedback (RLHF) and supervised fine-tuning (SFT) projects. My duties included transforming and rating AI-generated responses, designing prompts for persona synthesis, and conducting rigorous error and hallucination identification audits. I applied standardized taxonomies and detailed rubrics to ensure data quality for downstream model development. • Synthesized, categorized, and labeled over 100,000 complex text data points for AI/LLM training. • Audited and error-checked output data for factual accuracy, consistency, and bias reduction. • Designed prompt templates and performed creative persona-based content rewriting tasks. • Executed deep fact-checking, ambiguity flagging, and model hallucination detection.

2022 - 2025

Multimodal Auditor & Safety Operations Lead

VideoRelationship
As a Multimodal Auditor & Safety Operations Lead, I verified video/text alignment, analyzed temporal and spatial relationships, and labeled multimodal safety risks. My work focused on assessing logical consistency over time, cultural nuance detection, and multimodal bias identification in AI-generated outputs. I synthesized findings into structured reports to improve AI reliability and safety awareness. • Evaluated long-form video content for prompt alignment and temporal memory. • Labeled and tagged media for bullying, fake news, and dangerous activities under strict safety rules. • Detected multimodal bias and spatial relationship errors in video-to-text outputs. • Produced detailed feedback reports highlighting causal effects and risk factors.

As a Multimodal Auditor & Safety Operations Lead, I verified video/text alignment, analyzed temporal and spatial relationships, and labeled multimodal safety risks. My work focused on assessing logical consistency over time, cultural nuance detection, and multimodal bias identification in AI-generated outputs. I synthesized findings into structured reports to improve AI reliability and safety awareness. • Evaluated long-form video content for prompt alignment and temporal memory. • Labeled and tagged media for bullying, fake news, and dangerous activities under strict safety rules. • Detected multimodal bias and spatial relationship errors in video-to-text outputs. • Produced detailed feedback reports highlighting causal effects and risk factors.

2020 - 2021

Data Systems Auditor (STEM-Based)

ImageObject Detection
As a Data Systems Auditor, I performed pixel-level anomaly detection and object identification in large-scale image datasets. My work relied on STEM-based analytical methods to guarantee the precision and accuracy of digital document labeling. I established reproducible procedures to optimize data quality and detect regional nuances in document classification. • Labeled and audited images for object/document recognition tasks. • Identified regional and localized features for improved dataset granularity. • Developed and implemented automated SOPs for annotation and reporting efficiency. • Applied the SMART framework to optimize system audit and data grounding processes.

As a Data Systems Auditor, I performed pixel-level anomaly detection and object identification in large-scale image datasets. My work relied on STEM-based analytical methods to guarantee the precision and accuracy of digital document labeling. I established reproducible procedures to optimize data quality and detect regional nuances in document classification. • Labeled and audited images for object/document recognition tasks. • Identified regional and localized features for improved dataset granularity. • Developed and implemented automated SOPs for annotation and reporting efficiency. • Applied the SMART framework to optimize system audit and data grounding processes.

2019 - 2020

Education

M

META

Professional Certificate, Social Media Marketing

Professional Certificate
Not specified
G

Google

Professional Certificate, Digital Marketing and E-commerce

Professional Certificate
Not specified

Work History

O

Ogo-Oluwa System Audit

Data Systems Auditor

Lagos
2019 - 2020