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D

David M.

AI Data Trainer (Independent Contractor) — Mercor AI

Nigeria flagKaduna, Nigeria

Key Skills

Software

MercorMercor
Other

Top Subject Matter

Natural language understanding (NLP) dataset quality assurance and evaluation
Content moderation and recommendation dataset labeling
Legal Services & Contract Review

Top Data Types

DocumentDocument
AudioAudio
TextText

Top Task Types

Object DetectionObject Detection
Text GenerationText Generation
Question AnsweringQuestion Answering
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

AI Data Trainer (Independent Contractor) — Mercor AI. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mercor and Other. Education includes Bachelor of Mechanical Engineering, Ahmadu Bello University (2024). AI-training focus includes data types such as Document and Audio and labeling workflows including Evaluation, Rating, and Entity (NER) Classification.

Labeling Experience

AI Trainer & Moderator — Aurora

OtherAudioAudioEntity (NER) ClassificationEntity (NER) Classification

Evaluated user-generated content for accuracy and compliance with community standards. Tagged and categorized multimedia data to improve content recommendation systems. Moderated and delivered high-quality results under tight deadlines while managing large data volumes. • Assessed UGC accuracy and policy compliance • Tagged and categorized multimedia data • Supported content recommendation improvement • Managed throughput for large labeling volumes

2025
Mercor

AI Data Trainer (Independent Contractor) — Mercor AI

MercorMercorDocumentDocument

Reviewed and categorized large datasets for machine learning applications, preparing data for downstream model training and evaluation. Designed evaluation rubrics and applied them to assess AI model outputs in natural language understanding tasks. Executed QA checks on labeled datasets to ensure consistent application of project guidelines. • Reviewed and categorized datasets for ML readiness • Created and applied evaluation rubrics • Provided written feedback to engineering teams to reduce model bias • Performed QA checks to verify labeling guideline consistency

2025

Education

A

Ahmadu Bello University

Bachelor of Mechanical Engineering, Mechanical Engineering

Bachelor of Mechanical Engineering
2020 - 2024

Work History

D

Defence Industry Corporation of Nigeria (DICON)

Mechanical Engineer (R&D)

Kaduna
2025 - Present
F

FX Oracle AI Global

Head of AI Development and Branch Manager

Abuja
2023 - Present