Collins Gikungu

Key Skills

Software

Appen

Top Subject Matter

No subject matter listed

Top Data Types

Text

Audio

Top Task Types

Evaluation Rating

Entity Ner Classification

Classification

Segmentation

Translation Localization

Freelancer Overview

I am a detail-oriented remote freelancer with hands-on experience in AI training, data annotation, and quality assurance for natural language processing tasks. My work includes evaluating and labeling LLM responses, categorizing large text datasets, and performing search quality rating and content moderation for various platforms. I consistently apply annotation guidelines, maintain high accuracy, and flag policy violations or low-quality content to improve data quality. With strong written communication skills and a keen eye for detail, I excel at guideline-based evaluation, transcription, localization QA, and structured data entry. I am passionate about supporting AI development through precise labeling, quality review, and data validation in fast-paced, remote environments.

Labeling Experience

Search Quality Rater / Web Evaluation — Remote

AppenTextEvaluation Rating

Evaluated web search results and landing pages against quality benchmarks for relevance and usefulness. Applied rating scales and submitted written justifications for content evaluations. Identified and flagged spam, low-quality, or misleading web content as part of quality assurance. Maintained consistent scoring practices and contributed to model reliability. • Rated web content as per standardized guidelines • Provided reasoning for rating decisions in written form • Escalated questionable content for further review • Upheld accuracy and consistency in evaluation tasks

Evaluated web search results and landing pages against quality benchmarks for relevance and usefulness. Applied rating scales and submitted written justifications for content evaluations. Identified and flagged spam, low-quality, or misleading web content as part of quality assurance. Maintained consistent scoring practices and contributed to model reliability. • Rated web content as per standardized guidelines • Provided reasoning for rating decisions in written form • Escalated questionable content for further review • Upheld accuracy and consistency in evaluation tasks

2024 - 2025

Data Annotation (Text Labeling) — Freelance, Remote

AppenTextEntity Ner Classification

Labeled and categorized text data in compliance with provided taxonomy and annotation guidelines. Applied entity recognition and classification rules to large datasets to support machine learning. Conducted quality checks and error corrections to ensure high-quality labels. Achieved productivity and accuracy targets across multiple text annotation projects. • Classified and tagged textual data as per project specifications • Reviewed annotations for errors and corrected inconsistencies • Followed standardized procedures for consistent results • Maintained tracking logs to measure annotation productivity

Labeled and categorized text data in compliance with provided taxonomy and annotation guidelines. Applied entity recognition and classification rules to large datasets to support machine learning. Conducted quality checks and error corrections to ensure high-quality labels. Achieved productivity and accuracy targets across multiple text annotation projects. • Classified and tagged textual data as per project specifications • Reviewed annotations for errors and corrected inconsistencies • Followed standardized procedures for consistent results • Maintained tracking logs to measure annotation productivity

2024 - 2025

AI Training / LLM Response Evaluation (Freelance) — Remote

AppenTextEvaluation Rating

Evaluated LLM responses using structured rubrics for quality, safety, and relevance. Performed ranking, comparison, and preference-labeling to refine model output. Maintained high accuracy and consistency in guideline-based AI training tasks. Ensured model improvement by identifying issues and flagging violations. • Assessed AI-generated answers using detailed scoring criteria • Ranked and compared multiple responses for ongoing model tuning • Flagged hallucinations and low-quality outputs to improve safety • Delivered consistent ratings aligned with project requirements

Evaluated LLM responses using structured rubrics for quality, safety, and relevance. Performed ranking, comparison, and preference-labeling to refine model output. Maintained high accuracy and consistency in guideline-based AI training tasks. Ensured model improvement by identifying issues and flagging violations. • Assessed AI-generated answers using detailed scoring criteria • Ranked and compared multiple responses for ongoing model tuning • Flagged hallucinations and low-quality outputs to improve safety • Delivered consistent ratings aligned with project requirements

2024 - 2025

Translation & Localization QA — Freelance, Remote

AppenTextTranslation Localization

Reviewed translated text for meaning preservation, tonal accuracy, and terminology alignment. Performed localization checks to verify consistency with project guidelines. Identified and corrected translation errors in annotated content. Supported quality assurance processes for multilingual datasets. • Audited translated documents for accuracy • Compared source and target text for meaning • Implemented corrections to improve translation quality • Tracked errors and maintained localization standards

Reviewed translated text for meaning preservation, tonal accuracy, and terminology alignment. Performed localization checks to verify consistency with project guidelines. Identified and corrected translation errors in annotated content. Supported quality assurance processes for multilingual datasets. • Audited translated documents for accuracy • Compared source and target text for meaning • Implemented corrections to improve translation quality • Tracked errors and maintained localization standards

2023 - 2025

Audio Transcription & Segmentation — Freelance, Remote

AppenAudioSegmentation

Transcribed audio recordings with a focus on accuracy and clear speaker distinction. Segmented audio files according to provided timing and labeling rules. Followed strict formatting and labeling standards to deliver consistent transcription output. Ensured high-quality results by adhering to project-specific guidelines. • Transcribed voice data for machine learning • Labeled and tagged speech segments by speaker and time • Reviewed transcription accuracy before submission • Maintained deadline adherence throughout audio projects

Transcribed audio recordings with a focus on accuracy and clear speaker distinction. Segmented audio files according to provided timing and labeling rules. Followed strict formatting and labeling standards to deliver consistent transcription output. Ensured high-quality results by adhering to project-specific guidelines. • Transcribed voice data for machine learning • Labeled and tagged speech segments by speaker and time • Reviewed transcription accuracy before submission • Maintained deadline adherence throughout audio projects

2023 - 2025

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Education

Work History