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Jabali Mutsoli

Jabali Mutsoli

AI Linguistic Specialist - AI Training & Evaluation

KENYA flag
Nairobi, Kenya
$15.00/hrIntermediateLabelboxMercorRemotasks

Key Skills

Software

LabelboxLabelbox
MercorMercor
RemotasksRemotasks
Other

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
TextText

Top Label Types

Classification
Audio Recording
Bounding Box
Evaluation Rating
Prompt Response Writing SFT

Freelancer Overview

I am an experienced AI linguistic specialist and data annotation professional with a strong background in large-scale AI training projects, particularly in natural language processing (NLP). My work with Silensio and Mercor has equipped me with hands-on expertise in annotating and validating both text and audio datasets, ensuring high-quality, culturally adapted data for AI model development. I am highly skilled in transcription validation, conversational evaluation, linguistic correction, and prompt-response ranking, with advanced fluency in both English and Swahili. My attention to detail and commitment to quality assurance help me consistently deliver accurate and reliable training data. I am comfortable working in remote, platform-based environments and proficient in using online annotation tools, AI evaluation dashboards, and productivity suites like Google Workspace and Microsoft Office.

IntermediateEnglish

Labeling Experience

AI Linguistic Annotator & Transcription Validator – Silensio AI (Remote)

OtherAudioClassificationAudio Recording
Performed large-scale text and audio annotation for AI speech and language models. Reviewed transcription outputs for grammatical and contextual accuracy using defined guidelines. Conducted linguistic dataset categorization and validated conversational audio data. • Ensured high-quality annotation and validation results • Adhered strictly to project deadlines and QA standards • Utilized knowledge of English and Swahili for localization • Maintained complete confidentiality of sensitive data

Performed large-scale text and audio annotation for AI speech and language models. Reviewed transcription outputs for grammatical and contextual accuracy using defined guidelines. Conducted linguistic dataset categorization and validated conversational audio data. • Ensured high-quality annotation and validation results • Adhered strictly to project deadlines and QA standards • Utilized knowledge of English and Swahili for localization • Maintained complete confidentiality of sensitive data

2025
Mercor

AI Response Evaluator & Content Rater – Mercor AI (Remote)

MercorImageBounding BoxEvaluation Rating
Evaluated AI-generated responses for accuracy, coherence, and linguistic quality. Ranked prompt-response outputs and conducted hallucination and bias detection tasks. Applied structured rubrics for consistent large language model assessment. • Improved overall quality of AI conversational outputs • Identified and flagged problematic or low-quality responses • Contributed to language model performance enhancement • Demonstrated precision with English and Swahili outputs

Evaluated AI-generated responses for accuracy, coherence, and linguistic quality. Ranked prompt-response outputs and conducted hallucination and bias detection tasks. Applied structured rubrics for consistent large language model assessment. • Improved overall quality of AI conversational outputs • Identified and flagged problematic or low-quality responses • Contributed to language model performance enhancement • Demonstrated precision with English and Swahili outputs

2025 - 2025

Education

J

JOMMO KENYATTA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Bachelor of Human Resource Management, Human Resource Management Analytics

Bachelor of Human Resource Management
2023 - 2025

Work History

T

TEST IO

Tester

Nairobi
2025 - Present
T

TEST IO

Tester

Nairobi
2025 - Present