Hello! I'm Sidney Evans M. Dennis, a detail-oriented AI Data Annotator and Prompt Engineering Specialist based in Nairobi, Kenya. I bring over 3 years of experience labeling data, performing quality assurance, and supporting AI model development, with a focus on video annotation, text-to-image/text-to-video prompts, and dataset structuring. I work under NDA in fast-paced production environments and collaborate with AI research teams to improve computer vision and generative AI systems. I apply structured labeling guidelines, maintain data accuracy, and contribute to training data for LLMs and multimodal models. I’m proficient with annotation tools like CVAT, Labelbox, and VGG Image Annotator, and I thrive on turning complex datasets into reliable, scalable assets while upholding strict privacy and quality benchmarks.

Sidney Evans M. Dennis

Hello! I'm Sidney Evans M. Dennis, a detail-oriented AI Data Annotator and Prompt Engineering Specialist based in Nairobi, Kenya. I bring over 3 years of experience labeling data, performing quality assurance, and supporting AI model development, with a focus on video annotation, text-to-image/text-to-video prompts, and dataset structuring. I work under NDA in fast-paced production environments and collaborate with AI research teams to improve computer vision and generative AI systems. I apply structured labeling guidelines, maintain data accuracy, and contribute to training data for LLMs and multimodal models. I’m proficient with annotation tools like CVAT, Labelbox, and VGG Image Annotator, and I thrive on turning complex datasets into reliable, scalable assets while upholding strict privacy and quality benchmarks.

Available to hire

Hello! I’m Sidney Evans M. Dennis, a detail-oriented AI Data Annotator and Prompt Engineering Specialist based in Nairobi, Kenya. I bring over 3 years of experience labeling data, performing quality assurance, and supporting AI model development, with a focus on video annotation, text-to-image/text-to-video prompts, and dataset structuring. I work under NDA in fast-paced production environments and collaborate with AI research teams to improve computer vision and generative AI systems.

I apply structured labeling guidelines, maintain data accuracy, and contribute to training data for LLMs and multimodal models. I’m proficient with annotation tools like CVAT, Labelbox, and VGG Image Annotator, and I thrive on turning complex datasets into reliable, scalable assets while upholding strict privacy and quality benchmarks.

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Language

English
Fluent

Work Experience

AI Data Annotator & Prompt Engineering Specialist (Freelance) at Micro1
April 1, 2025 - Present
Contributed to AI development projects through precise video annotation of scenes, actions, and contextual elements. Applied structured labeling guidelines to maintain dataset accuracy, consistency, and quality control. Annotated characters, objects, lighting, and camera movements for training computer vision & generative AI models. Collaborated with cross-functional teams under NDA compliance, ensuring data security and confidentiality.
Data Annotator (Seasonal) at CloudFactory
November 1, 2024 - March 1, 2025
Conducted image and text annotation for large-scale datasets. Performed data validation and quality assurance, reducing labeling errors by ensuring consistency with project guidelines. Delivered structured datasets used in machine learning model training.
Prompt Engineer (Freelance) at Luma AI
January 1, 2022 - November 1, 2024
Designed and optimized AI prompts for text-to-image and text-to-video systems. Created prompt templates improving model responses and creative outputs. Conducted iterative testing to refine generative AI model performance. Supported dataset preparation and evaluation for training and fine-tuning.
AI Annotation Reviewer (Part-Time, Remote) at Atlas Capture
January 1, 2025 - Present
Review and evaluate AI-generated outputs for accuracy, relevance, and alignment with project guidelines. Perform quality checks on annotated data, identifying errors, inconsistencies, and edge cases. Validate structured annotations and model responses used in LLM and multimodal AI training. Provide detailed feedback to improve annotation quality and overall dataset reliability. Work under strict quality benchmarks and NDA compliance in a production AI environment.

Education

Diploma in Automotive Engineering at Kiirua Technical Training Institute
January 1, 2019 - January 1, 2022
Diploma at Kiirua Technical Training Institute
January 1, 2019 - January 1, 2022

Qualifications

Add your qualifications or awards here.

Industry Experience

Media & Entertainment, Software & Internet, Professional Services, Other, Education