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Lios Nchinda

Lios Nchinda

AI Trainer - Language Data Annotation

CAMEROON flag
Buea, Cameroon
$10.00/hrIntermediateScale AI

Key Skills

Software

Scale AIScale AI

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Label Types

Text Generation
Text Summarization
RLHF
Evaluation Rating
Prompt Response Writing SFT

Freelancer Overview

I am a certified linguist with hands-on experience in AI data annotation and training, specializing in natural language processing and computer vision projects. At Outlier AI, I have consistently delivered high-quality annotations and validations across large-scale text and image datasets, achieving 95–99% quality scores and directly contributing to improved model accuracy and reliability. My background in linguistics, language teaching, and translation enables me to identify errors, biases, and edge cases in AI outputs, and provide detailed feedback for continuous model improvement. I am adept at following annotation guidelines, collaborating with global QA teams, and meeting tight deadlines. My strong communication skills, attention to detail, and commitment to quality ensure that I deliver reliable results in fast-paced AI environments.

IntermediateEnglishFrench

Labeling Experience

Scale AI

Document and Text Task

Scale AITextText GenerationText Summarization
The scope of my project with Outlier involved prompt writing, AI response evaluation, and data labeling to improve large language model performance. The work focused on creating and refining prompts, assessing model outputs for accuracy and coherence, and ensuring alignment with detailed task guidelines. Projects were typically ongoing and scaled based on client needs, with multiple contributors working under structured workflows. The specific labeling tasks included ranking AI responses, identifying hallucinations or factual errors, evaluating instruction adherence, tagging linguistic issues, and providing written justifications for quality ratings. These tasks required strong analytical skills, attention to nuance, and consistency in applying rubrics across varied content types. Quality measures were strict and performance-driven. All submissions were reviewed or audited, scored against predefined rubrics, and monitored through quality metrics. Maintaining high accuracy, follow

The scope of my project with Outlier involved prompt writing, AI response evaluation, and data labeling to improve large language model performance. The work focused on creating and refining prompts, assessing model outputs for accuracy and coherence, and ensuring alignment with detailed task guidelines. Projects were typically ongoing and scaled based on client needs, with multiple contributors working under structured workflows. The specific labeling tasks included ranking AI responses, identifying hallucinations or factual errors, evaluating instruction adherence, tagging linguistic issues, and providing written justifications for quality ratings. These tasks required strong analytical skills, attention to nuance, and consistency in applying rubrics across varied content types. Quality measures were strict and performance-driven. All submissions were reviewed or audited, scored against predefined rubrics, and monitored through quality metrics. Maintaining high accuracy, follow

2025 - 2025

Education

U

University of Bamenda

Master of Arts, Applied Linguistics

Master of Arts
2022 - 2022
U

University of Bamenda

Bachelor of Arts, English Language

Bachelor of Arts
2020 - 2020

Work History

O

Outlier AI

AI Trainer

Buea
2024 - Present
I

Invisible Technologies

Data Annotator

Buea
2022 - 2023