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MATUKU MWATHE
NAIROBI
Summary
AI media and data specialist supporting model quality through prompt evaluation, response ranking, content classification, and multimodal review. Audited 400+ text, image, and video outputs, created 150+ edge-case prompts, and kept a 100% on-time delivery record.
Overview
1
1
Certification
7
7
years of professional experience
Work History
AI Media & Content Specialist
AuraOne Human Data
Remote
12.2025 - Current
- Reviewed AI-generated text, image, and video outputs for factual accuracy and adherence to quality and safety guidelines, ensuring reliable content delivery.
- Audited 400+ multimodal AI outputs and documented errors, inconsistencies, and edge cases using structured review criteria.
- Evaluated 250+ prompt-response pairs for tone and reading level, ensuring instruction adherence and content suitability for target audiences.
- Created and tested 100+ structured prompts to identify model-response issues, enhancing overall response quality and instruction compliance.
- Maintained a 100% on-time delivery record across assigned evaluation tasks.
AI Data Specialist & Prompt Evaluator
Remotasks
Remote
05.2023 - 08.2025
- Reviewed 1,000+ AI outputs, ensuring adherence to accuracy, tone, safety, and instruction compliance, significantly enhanced overall response quality.
- Maintained a 99.4% quality score across audited tasks while meeting platform quality and turnaround requirements.
- Delivered concise, consistent feedback and labels, directly contributing to dataset integrity and model quality enhancement.
- Created 150+ edge-case prompts to rigorously assess model behavior against established safety and quality benchmarks.
- Completed AI training tasks involving response ranking, pairwise comparison, content classification, hallucination detection, and rubric-based evaluation.
Data Quality & Annotation Specialist
Scale AI
Remote
01.2022 - 12.2022
- Validated 5,000+ data records with approximately 99% accuracy and strong schema compliance.
- Conducted structured data validation, annotation, categorization, and quality checks to ensure compliance with project guidelines.
- Assessed 300+ prompt-response pairs for factual accuracy and adherence to safety rubrics, enhancing overall data reliability.
- Organized and categorized 10,000+ data repositories, contributing to a reported 20% reduction in search latency.
- Developed 15+ standard operating procedures for data handling and quality workflows, streamlining processes for team use.
Freelance Data & Content Specialist
Fiverr
Remote
01.2021 - 12.2022
- Completed client projects in data entry, online research, content review, data organization, and quality checking, ensuring high standards and client satisfaction.
- Followed detailed written instructions to deliver accuracy-sensitive tasks within agreed deadlines, maintaining quality and reliability.
- Reviewed and corrected client-provided information, improving consistency and completeness before delivery.
- Managed multiple short-term projects independently while maintaining clear communication and organized work records.
- Executed project-based assignments, contributing to timely and organized project completion.
Data Annotation & Quality Specialist
CloudFactory
Remote
02.2020 - 12.2021
- Executed data annotation, categorization, verification, and quality-control tasks according to project-specific guidelines to maintain data integrity.
- Reviewed and labeled high-volume data in alignment with defined examples, taxonomies, and quality standards to ensure compliance with project requirements.
- Identified ambiguous or low-quality records and escalated exceptions for review rather than making unsupported assumptions.
- Maintained consistency and accuracy in remote workflows to uphold quality across repetitive tasks.
Education
Bachelor's Degree - Computer Science
Chuka University
Kenya11-2019
Skills
- AI Response Evaluation
- Data Annotation
- Data Labeling
- Prompt Engineering
- Response Ranking
- Pairwise Comparison
- Text Classification
- Fact-Checking
- Hallucination Detection
- Dataset QA
- Guideline Adherence
- Schema compliance
- Edge-case identification
- Prompt-Response Evaluation
- Content Review
- Content quality review
- Quality Control
- AI Quality Assurance
- Data Review Platform
- Cloud Data Management
- Search Relevance
- AI Annotation Tools
- Human feedback
- AI Annotation Tools
Personal Information
Title: AI Data Specialist | AI Trainer | Data Annotation & Quality Assurance
Certification
- Google Data Analytics Professional Certificate — Coursera, 2024
- Advanced Prompt Engineering for Data Evaluation — Online Professional Training, 2024
- AI Quality and Ethics Certification — Data Standards Institute, 2025
LANGUAGES
English — Professional working proficiency
Accomplishments
- 99.4% quality score across audited AI evaluation tasks.
- 1,000+ AI outputs evaluated for accuracy, safety, tone, and instruction adherence.
- 400+ multimodal AI outputs reviewed across text, image, and video.
- 300+ prompt-response pairs evaluated using structured AI-training rubrics.
- 5,000+ records validated at approximately 99% accuracy.
TARGET AI TRAINING PROJECTS
- Entry-level data annotation
- Text classification
- Image/content labeling
- Search relevance
- AI response ranking
- Pairwise comparison
- Prompt-response evaluation
- Content quality review
- Fact-checking
- Safety checks
- Dataset QA
- Data verification
- Basic RLHF
- Transcription and categorization
Timeline
AI Media & Content Specialist
AuraOne Human Data
12.2025 - Current
AI Data Specialist & Prompt Evaluator
Remotasks
05.2023 - 08.2025
Data Quality & Annotation Specialist
Scale AI
01.2022 - 12.2022
Freelance Data & Content Specialist
Fiverr
01.2021 - 12.2022
Data Annotation & Quality Specialist
CloudFactory
02.2020 - 12.2021
Bachelor's Degree - Computer Science
Chuka University