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Ephraim Udoh

Ephraim Udoh

Data Annotation

Nigeria flagUyo, Nigeria
Intermediate

Key Skills

Software

No software listed

Top Subject Matter

Autonomous Vehicles
Conversational AI/Language Models
Legal Services & Contract Review

Top Data Types

ImageImage
TextText
DocumentDocument

Top Task Types

Bounding BoxBounding Box
RLHFRLHF

Freelancer Overview

Data Annotation. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N and A. Education includes Bachelor of Engineering, University of Uyo (2026). AI-training focus includes data types such as Image and Text and labeling workflows including Bounding Box and RLHF.

Intermediate

Labeling Experience

AI Response Rater (RLHF Evaluator)

TextRLHF
As part of a Reinforcement Learning from Human Feedback (RLHF) pipeline at Outlier, I evaluated and ranked AI-generated responses. My assessments focused on factual accuracy, safety, and appropriate tone to refine AI conversational models. This process contributed directly to the enhanced effectiveness and reliability of AI outputs. • Evaluated AI-generated text for factual and contextual correctness. • Provided critical human feedback for language model training. • Maintained rigorous standards for safety and tone. • Worked within a structured RLHF annotation system.

As part of a Reinforcement Learning from Human Feedback (RLHF) pipeline at Outlier, I evaluated and ranked AI-generated responses. My assessments focused on factual accuracy, safety, and appropriate tone to refine AI conversational models. This process contributed directly to the enhanced effectiveness and reliability of AI outputs. • Evaluated AI-generated text for factual and contextual correctness. • Provided critical human feedback for language model training. • Maintained rigorous standards for safety and tone. • Worked within a structured RLHF annotation system.

2026 - Present

Data Annotation

ImageBounding Box
As a data annotator at Outlier, I labeled over 100 high-resolution images for autonomous vehicle training, employing both bounding box and semantic segmentation techniques. I maintained a 99% accuracy rate across annotation projects, showcasing strong attention to detail and adherence to established guidelines. My work enabled improved model performance for safety-critical automotive applications. • Annotated images with bounding boxes and semantic segmentation. • Consistently met or exceeded accuracy and throughput benchmarks. • Adhered strictly to project protocols and quality assurance standards. • Supported data preparation for advanced AI algorithms.

As a data annotator at Outlier, I labeled over 100 high-resolution images for autonomous vehicle training, employing both bounding box and semantic segmentation techniques. I maintained a 99% accuracy rate across annotation projects, showcasing strong attention to detail and adherence to established guidelines. My work enabled improved model performance for safety-critical automotive applications. • Annotated images with bounding boxes and semantic segmentation. • Consistently met or exceeded accuracy and throughput benchmarks. • Adhered strictly to project protocols and quality assurance standards. • Supported data preparation for advanced AI algorithms.

2026 - Present

Education

U

University of Uyo

Bachelor of Engineering, Engineering

Bachelor of Engineering
2026 - 2026

Work History

I

Ibom Hotels and Golf Resort

Associate Maintenance Engineer

Uyo
2025 - Present
C

Chainlink9ja

Community Moderator

N/A
2025 - 2026