I am a detail-oriented Data Annotator and AI Training Specialist with over five years of experience contributing to development, training, and optimization of machine learning and AI models through accurate data labeling and dataset management. I consistently follow annotation guidelines and QA protocols to ensure high data quality across image, video, audio, and text modalities, supporting computer vision, NLP, and predictive analytics systems. I have expertise with tools like Labelbox, CVAT, Label Studio, and cloud-based AI platforms to produce high-quality labeled datasets for ML pipelines. I am a highly motivated remote professional with strong analytical thinking, problem-solving abilities, and exceptional attention to detail, capable of managing multiple datasets while maintaining productivity and accuracy. I enjoy collaborating with cross-functional teams — including AI engineers, project managers, and QA specialists — to improve annotation processes and model performance. I am passionate about emerging technologies in AI, data science, and automation, and I seek opportunities to contribute to innovative AI development projects in a fully remote, global environment. I bring hands-on experience in annotating and labeling large-scale datasets for autonomous systems, NLP, and computer vision applications. I am committed to delivering precise, scalable training data and to continuously learning new annotation guidelines and tooling. I thrive in remote, cross-functional settings and aim to help teams achieve high-quality data ready for production ML pipelines, model evaluation, and real-world deployment.

Dennis Ojiambo Nair Obi

I am a detail-oriented Data Annotator and AI Training Specialist with over five years of experience contributing to development, training, and optimization of machine learning and AI models through accurate data labeling and dataset management. I consistently follow annotation guidelines and QA protocols to ensure high data quality across image, video, audio, and text modalities, supporting computer vision, NLP, and predictive analytics systems. I have expertise with tools like Labelbox, CVAT, Label Studio, and cloud-based AI platforms to produce high-quality labeled datasets for ML pipelines. I am a highly motivated remote professional with strong analytical thinking, problem-solving abilities, and exceptional attention to detail, capable of managing multiple datasets while maintaining productivity and accuracy. I enjoy collaborating with cross-functional teams — including AI engineers, project managers, and QA specialists — to improve annotation processes and model performance. I am passionate about emerging technologies in AI, data science, and automation, and I seek opportunities to contribute to innovative AI development projects in a fully remote, global environment. I bring hands-on experience in annotating and labeling large-scale datasets for autonomous systems, NLP, and computer vision applications. I am committed to delivering precise, scalable training data and to continuously learning new annotation guidelines and tooling. I thrive in remote, cross-functional settings and aim to help teams achieve high-quality data ready for production ML pipelines, model evaluation, and real-world deployment.

Available to hire

I am a detail-oriented Data Annotator and AI Training Specialist with over five years of experience contributing to development, training, and optimization of machine learning and AI models through accurate data labeling and dataset management. I consistently follow annotation guidelines and QA protocols to ensure high data quality across image, video, audio, and text modalities, supporting computer vision, NLP, and predictive analytics systems. I have expertise with tools like Labelbox, CVAT, Label Studio, and cloud-based AI platforms to produce high-quality labeled datasets for ML pipelines. I am a highly motivated remote professional with strong analytical thinking, problem-solving abilities, and exceptional attention to detail, capable of managing multiple datasets while maintaining productivity and accuracy. I enjoy collaborating with cross-functional teams — including AI engineers, project managers, and QA specialists — to improve annotation processes and model performance. I am passionate about emerging technologies in AI, data science, and automation, and I seek opportunities to contribute to innovative AI development projects in a fully remote, global environment.

I bring hands-on experience in annotating and labeling large-scale datasets for autonomous systems, NLP, and computer vision applications. I am committed to delivering precise, scalable training data and to continuously learning new annotation guidelines and tooling. I thrive in remote, cross-functional settings and aim to help teams achieve high-quality data ready for production ML pipelines, model evaluation, and real-world deployment.

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Language

English
Fluent
Swahili
Fluent

Work Experience

Senior Data Annotator / AI Trainer at Remote AI Projects
February 1, 2023 - Present
Annotated and labeled large-scale datasets including images, videos, and audio for ML model training; applied bounding boxes, semantic segmentation, and key-point labeling; reviewed and validated annotated data sets to ensure quality; collaborated with project managers and QA teams to maintain high annotation accuracy; provided feedback to improve annotation guidelines.
Digital Data Assistant at Tech Data Services
January 1, 2020 - September 1, 2021
Supported data preparation and dataset cleaning for AI and analytics teams; organized large datasets using Excel and Google Sheets; performed data categorization, tagging, and verification tasks; assisted in dataset preparation for ML testing and evaluation; maintained documentation and reports for data processing activities.
Data Annotation Specialist at AI Data Solutions (Remote Contract)
January 1, 2020 - February 28, 2023
Labeled datasets used for autonomous systems, computer vision, and NLP; applied labeling guidelines; maintained QA protocols; collaborated with AI engineers, project managers, and QA specialists to improve annotation processes and model performance; produced high-quality labeled data for ML pipelines using tools such as Labelbox, CVAT, and Label Studio.

Education

Bachelor of Science in Computer Science at University of Nairobi
January 1, 2020 - January 1, 2024

Qualifications

AI For Everyone – Deep Learning AI (Coursera)
January 11, 2030 - June 29, 2026
Data Analytics Professional Certificate – Google
January 11, 2030 - June 29, 2026
Microsoft Excel Data Analysis Certification
January 11, 2030 - June 29, 2026
Artificial Intelligence Fundamentals – IBM Skills Build
January 11, 2030 - June 29, 2026

Industry Experience

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