Open to opportunities

mutwiri phineas

@mutwiriphineas

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Experienced English educator and AI annotation specialist.

Kenya

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What I'm looking for

I am looking for opportunities that allow me to leverage my skills in AI and education, fostering growth in innovative environments.

I am an experienced English educator and AI annotation specialist with a strong foundation in linguistics and second language acquisition. My expertise lies in LLM fine-tuning, prompt and completion analysis, and content annotation across text and image modalities. I have consistently achieved top-tier QA accuracy while contributing to cutting-edge AI development projects for leading global platforms.

Throughout my career, I have demonstrated my ability to maintain a QA accuracy rating above 98% as an AI Annotator and Prompt Evaluation Specialist at Scale AI. I have also designed and reviewed thousands of prompts to improve model fluency and participated in RLHF tasks, helping to train and mentor new annotators. My teaching experience includes developing engaging lesson plans and fostering student growth in analytical reading and writing, which I believe are essential skills in both educational and data environments.

Experience

Work history, roles, and key accomplishments

AI Annotator & Prompt Evaluation Specialist

Scale AI / Outlier

Jan 2025 - Jun 2025 (5 months)

Labeled and curated diverse datasets for LLM training and chatbot optimization. Maintained a QA accuracy rating above 98%, consistently ranking among the top annotators.

Data Annotation LLM QA Cross Lingual Annotation

English & Literature Teacher

Ruiru Central High School

Sep 2022 - Jul 2023 (10 months)

Taught English and Literature to secondary students using modern instructional approaches. Developed engaging lesson plans integrating media and digital tools.

English Instruction Literature Teaching Lesson planning Curriculum Design

Homeschool Educator

Freelance

Delivered personalized English instruction to learners across different proficiency levels. Adapted teaching content to meet diverse learning needs and styles.

personalized instruction

Content Specialist & RLHF Annotator

Data Annotation Tech

Sep 2023 - Nov 2024 (1 year 2 months)

Designed and reviewed thousands of prompts and completions to improve model fluency. Participated in RLHF tasks including ranking, scoring, bias identification, and logic validation.

Prompt Engineering Fluency