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Nwoko D.

Nwoko D.

AI Training & Data Annotation Specialist (LLM Alignment & RLHF)

Nigeria flagLagos, Nigeria

Key Skills

Software

Don't disclose

Top Subject Matter

LLM alignment
RLHF evaluation
and conversational AI training data quality

Top Data Types

TextText
VideoVideo
DocumentDocument

Top Task Types

RLHFRLHF
Data CollectionData Collection

Freelancer Overview

AI Training & Data Annotation Specialist (LLM Alignment & RLHF). Brings 5+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Don't disclose. Education includes Bachelor of Science, National Open University of Nigeria (NOUN) (2025) and Higher National Diploma, Federal Polytechnic Offa (2021). AI-training focus includes data types such as Text and labeling workflows including RLHF and Data Collection.

Labeling Experience

AI Training & Data Annotation Specialist (Data Labeling & Taxonomy)

Don't discloseTextTextData CollectionData Collection

Categorized and tagged large datasets intended for multi-turn conversational AI training to ensure high-quality data ingestion for engineering teams. Performed linguistic and grammar modeling by editing, rewriting, and scoring model outputs against precise style guides and advanced grammar rules. Maintained high accuracy in detecting hallucinations through deep research and cross-checking against reliable sources. • Dataset categorization and taxonomy tagging • Multi-turn conversational AI data preparation • Output scoring for grammar, context nuance, and style • Hallucination detection via fact-checking

2025 - Present

AI Training & Data Annotation Specialist (LLM Alignment & RLHF)

Don't discloseTextTextRLHFRLHF

Evaluated and refined Large Language Model (LLM) responses using reinforcement learning from human feedback (RLHF) to improve truthfulness, reasoning, and conversational tone. Authored complex, domain-specific prompts to probe and test model capabilities in areas such as business, technical writing, and communication. Conducted citation-auditing fact checks against authoritative primary sources to identify hallucinations and improve response reliability. • RLHF response evaluation and refinement • Prompt engineering for output generation • Factual verification and citation auditing • Linguistic editing, rewriting, and scoring for grammar/style compliance

2025 - Present

Education

U

University of the People (UoPeople)

Professional Certificate, Digital Marketing

Professional Certificate
2022 - 2026
N

National Open University of Nigeria (NOUN)

Bachelor of Science, Mass Communication

Bachelor of Science
2021 - 2025

Work History

S

Sales Development Representative (SDR)

Sales Development Representative (SDR)

Austin
2025 - 2026
C

Content Operations & Ghostwriting

Content Operations and Ghostwriting Specialist

London
2022 - 2026