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R
Rizz B.

Rizz B.

Freelance AI Data Evaluator & Language Specialist (Generative AI A/B testing)

Kenya flagNairobi, Kenya

Key Skills

Software

Other

Top Subject Matter

Generative AI response evaluation and English language linguistic validation
Audio transcription
timestamp alignment

Top Data Types

TextText
AudioAudio
VideoVideo

Top Task Types

TranscriptionTranscription

Freelancer Overview

Freelance AI Data Evaluator & Language Specialist (Generative AI A/B testing). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Kenya Certificate of Secondary Education, Gituntu High School and Training Certificate, Independent Study. AI-training focus includes data types such as Text, Audio, and Video and labeling workflows including Evaluation, Rating, and Transcription.

Labeling Experience

Freelance AI Data Evaluator & Language Specialist (Generative AI A/B testing)

OtherTextText

Evaluated generative AI outputs by running comparative A/B testing against strict user prompts and category-specific guidelines. Reviewed, scored, and validated English responses for linguistic accuracy, structural integrity, and natural phrasing. Documented edge cases and provided feedback to improve AI model safety, alignment, and contextual awareness. • Compared A/B text responses to determine guideline-compliant output quality. • Scored linguistic and structural adherence to prompt requirements. • Flagged misalignment with formatting and localized nuance guidelines. • Produced edge-case notes and feedback loops for technical teams.

2025 - Present

Freelance Audio Transcriptionist & Annotator

OtherAudioAudioTranscriptionTranscription

Produced high-volume English audio transcripts with a maintained strict 98%+ accuracy rate. Aligned transcript segments directly to audio waveforms using millisecond precision timestamping. Labeled multi-speaker turns and tagged disfluencies and non-speech events according to technical specifications. • Transcribed complex speech phenomena including filler words, stutters, false starts, and disfluencies. • Applied millisecond timestamping aligned to acoustic waveforms. • Identified and labeled distinct speakers in multi-speaker audio. • Tagged laughter, applause, background noise, and flagged unintelligible segments.

2024 - 2025

Graphic Designer & Digital Content Reviewer (Quality evaluation)

OtherVideoVideo

Reviewed and evaluated digital content quality with emphasis on clarity, formatting preservation, and audience alignment. Assessed complex visual layouts to ensure they met project constraints and quality benchmarks. Operated in web-based software environments while managing concurrent freelance project deadlines. • Checked formatting and layout integrity across digital content. • Ensured content clarity and audience alignment to requirements. • Adapted to evolving web-based tools and platform constraints. • Delivered quality-controlled outputs under strict deadlines.

2023 - 2025

Education

I

Independent Study

Training Certificate, Remote Collaboration and Data Security

Training Certificate
Not specified
G

Gituntu High School

Kenya Certificate of Secondary Education, Secondary Education

Kenya Certificate of Secondary Education
Not specified

Work History

F

Freelance

Freelance AI Content Evaluator & Language Specialist

Nairobi
2025 - Present
F

Freelance

Freelance Audio Transcriptionist & Annotator

Nairobi
2024 - 2025