Robert (Wachira) N.
AI Training & Prompt Engineer
Experience
Feb 2022 - Dec 2024
2 years 11 monthsAI Training & Prompt Engineer
OneForma (Centific)
- Developed and refined AI-generated responses to ensure alignment with human intent.
- Created structured Q&A and business datasets using JSON, XML, and Markdown.
- Applied LLM feedback for continuous model improvement and QA validation.
- Collaborated with stakeholders to maintain quality and consistency in deliverables.
Aug 2020 - Apr 2021
9 monthsSearch Evaluation & Annotation Specialist
TransPerfect
- Evaluated business-related search relevance and multimedia metadata.
- Provided analytical insights to refine content recommendation systems.
- Ensured alignment of search data with quality and policy guidelines.
Nov 2019 - Jul 2023
3 years 9 monthsTranslator, Transcriber & Voice-over Specialist
Mars Translations
- Delivered Swahili-English translations and voiceovers for business and media content.
- Conducted transcription and subtitle creation for AI-driven applications.
- Ensured linguistic accuracy and consistency across projects.
Apr 2019 - Jan 2024
4 years 10 monthsLead Data Annotation & AI Training Specialist
Remotasks
- Led a team of analysts delivering structured datasets for AI and LLM projects.
- Oversaw QA processes, improving annotation accuracy to 98% and efficiency by 10%.
- Designed workflows for text, image, and video annotation aligned with project requirements.
- Conducted performance reviews and provided training to enhance content quality.
Mar 2017 - Dec 2023
6 years 10 monthsData Annotation & Transcription Specialist
Appen
- Performed linguistic annotation and transcription in Swahili and English.
- Produced high-quality training data for NLP and voice recognition systems.
- Supported multilingual datasets for business and research projects.
Summary
Results-driven AI Training and Data Annotation Lead with over 6 years of experience in large-scale content development, LLM quality assurance, and structured dataset creation.
Skilled in mentoring annotation teams, refining workflows, and ensuring linguistic precision across projects.
Demonstrated success in improving data quality by 10% and achieving 98%+ annotation accuracy.
Languages
Kikuyu
NativeSwahili
NativeGerman
AdvancedEnglish
AdvancedEducation
Jomo Kenyatta University
PhD · Linguistics · Kenya
Kenyatta University
Bachelor’s Degree · Mathematics and Linguistics · Kenya
Certifications & licenses
AI Data Annotation & Labeling Specialist Certification
Advanced NLP & Transcription Training
Quality Control in AI Training Data
Search Engine Evaluation Training
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