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J
Jeffrey W.

Jeffrey W.

AI Trainer

Nigeria flagDelta, Nigeria

Key Skills

Software

Don't disclose
Other

Top Subject Matter

LLM code evaluation and repository validation
benchmark dataset creation
Open-source software validation and test coverage improvement (indirect AI-training-aligned work)

Top Data Types

TextText
Computer Code ProgrammingComputer Code Programming
DocumentDocument

Top Task Types

Computer Programming/CodingComputer Programming/Coding
Evaluation/RatingEvaluation/Rating
Function CallingFunction Calling
RLHFRLHF
Object DetectionObject Detection

Freelancer Overview

LLM Evaluation & Repository Validation Engineer (Independent Contractor) — Habitat Inc.. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose and Other. Education includes National Diploma, Delta State Polytechnic, Ozoro (2021). AI-training focus includes data types such as Computer Code and Programming and labeling workflows including Evaluation, Rating, and Computer Programming.

Labeling Experience

LLM Evaluation & Repository Validation Engineer (Independent Contractor) — Habitat Inc.

Don't disclose

Contributed to designing and validating AI coding assistant benchmark tasks by reviewing AI-generated code against reference solutions. Created and refined multi-language test cases to probe edge cases, specification adherence, and build/runtime behavior for model evaluation. Delivered transparent, constructive feedback to distinguish ambiguous prompts from genuine model reasoning limitations. • Compared AI-generated implementations to golden/reference answers and identified subtle logical errors • Authored diverse, challenging test scenarios derived from real-world open-source commits (Python, Go, Java) • Documented findings, best practices, and recommendations to improve benchmark dataset quality • Helped define coding standards and task acceptance benchmarks targeting >0% to ≤50% AI success rates

2025 - Present

Open-Source Software Developer (Paid & Sponsored Contributions) — Remote

Other

Performed paid and sponsored open-source contributions that included writing and maintaining tests and improving documentation to strengthen repository quality and reliability. While not explicitly framed as model training, the work involved creating and extending test coverage and debugging processes that are aligned with validating software behavior. Supported CI/CD workflows in mature repositories to maintain correctness across changes. • Developed and improved build configuration and observability for better integration diagnostics • Authored or refactored documentation and tutorials to streamline developer workflows • Wrote and maintained technically accurate test cases as part of ongoing quality improvements • Worked asynchronously with distributed maintainers in multi-language codebases

2023 - Present

Education

D

Delta State Polytechnic, Ozoro

National Diploma, Electrical and Electronic Engineering Technology

National Diploma
2019 - 2021

Work History

H

Habitat Inc.

LLM Evaluation & Repository Validation Engineer

Delta
2025 - Present
H

Habitat Inc.

Open-Source Software Developer (Paid & Sponsored Contributions)

Delta
2023 - Present