Otobong E.

Key Skills

Software

Mercor

Other

Surge AI

Top Subject Matter

LLM training data labeling

RLHF evaluation

and safety red-teaming

Top Data Types

Text

Image

Document

Top Task Types

RLHF

Fine-tuning

Entity (NER) Classification

Freelancer Overview

AI Training & Evaluation Specialist (Contract) — Mercor. Brings 9+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Mercor, Other, and Surge AI. Education includes Bachelor of Science, Lagos State University (2018) and Data Analytics Bootcamp, DataCamp (2021). AI-training focus includes data types such as Text and Image and labeling workflows including RLHF, Fine-tuning, and Entity (NER) Classification.

Labeling Experience

AI Training & Evaluation Specialist (Contract) — Mercor

MercorTextRLHF

Provided RLHF annotation and evaluation for frontier model training cycles, including rating and ranking LLM outputs across reasoning, coding, math, and creative writing. Achieved high-quality performance and contributed to iterative safety improvements through systematic red-teaming deliverables. Developed reusable prompt templates and evaluation rubrics to improve labeling efficiency for a team of contractors. • Completed 3,000+ RLHF annotation tasks with a 98.4% quality score • Rated and ranked LLM responses for multiple model training cycles • Built evaluation rubrics and prompt templates, reducing per-task time by 30% • Delivered red-teaming reports identifying 45+ edge cases and safety vulnerabilities

2023 - Present

Image Generation & Prompt Engineer — Freelance / Multiple Clients

OtherImageFine-tuning

Produced large volumes of commercial AI-generated images and engineered workflows to standardize output quality and speed. Designed and maintained automated image-to-image refinement, inpainting, and style-transfer pipelines using node-based tooling. Supported model-use compliance by consulting on AI image policy and drafting content-safety guidelines for client adoption. • Generated 10,000+ commercial images using Stable Diffusion, DALL·E 3, and Midjourney • Engineered ControlNet and LoRA workflows for batch-consistent character/product imagery • Built ComfyUI node pipelines for automated refinement, inpainting, and style transfer • Drafted AI image policy compliance guidelines adopted by SaaS clients

2022 - Present

Generalist AI Contractor — Scale AI / Surge / Remotasks

Surge AITextEntity (NER) Classification

Completed a broad set of AI training and data annotation tasks, including transcription-related work, NER labeling, bounding-box annotation, instruction-following evaluation, and code review. Maintained consistently high quality ratings and progressed to expert tier status based on performance. Mentored new contractors to improve annotation best practices and team accuracy outcomes. • Completed 8,000+ diverse tasks with a 4.9/5.0 average quality rating • Performed NER labeling and bounding-box annotation plus instruction-following evaluation • Conducted code review as part of training/quality assurance tasks • Mentored 12 new contractors, improving team accuracy metrics by 18%

2020 - 2022

Education

Work History